Omron CJ2 User Manual
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Cat. No. W472-E1-01
SYSMAC CJ Series
CJ2H-CPU@@-EIP
CJ2 CPU Unit Hardware
USER'S MANUAL

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Summary of Contents for Omron CJ2

  • Page 1 Cat. No. W472-E1-01 SYSMAC CJ Series CJ2H-CPU@@-EIP CJ2 CPU Unit Hardware USER’S MANUAL...
  • Page 3 OMRON. No patent liability is assumed with respect to the use of the information contained herein. Moreover, because OMRON is con- stantly striving to improve its high-quality products, the information contained in this manual is subject to change without notice.
  • Page 5 SYSMAC CJ Series CJ2H-CPU@@-EIP CJ2 CPU Unit Hardware User’s Manual Produced July 2008...
  • Page 7: Introduction

    • Personnel in charge of managing FA systems and facilities. Applicable Products Definition of CJ Series In this manual, CJ Series is a general term to refer to the CJ2 CPU Units, CJ1-H CPU Units, CJ1M CPU Units, and CJ1 CPU Units. CJ Series...
  • Page 8: Cj2 Cpu Unit Manuals

    CJ2 CPU Unit Manuals Information on the CJ2 CPU Units is provided in the following manuals. Refer to the appropriate manual for the information that is required. This Manual CJ-series CJ2 CPU Unit Hardware User’s Manual (W472) CJ-series CJ2 CPU Unit Software User’s Manual (W473) Mounting and Setting Hardware •...
  • Page 9: Overview

    Manual Configuration The CJ2 CPU manuals are organized in the sections listed in the following tables. Refer to the appropri- ate section in the manuals as required. Hardware User’s Manual (W472) (This Manual) Section Content This section gives an overview of the CJ2 CPU Units and describes the features and Section 1 Overview specifications.
  • Page 10: Manual Structure

    If the locking tabs are not secured properly, the connectors may become loose and not function properly. Be sure to slide the locking tabs until they are securely in place. Manual name CJ2 CPU Unit Hardware User’s Manual 5-13 This illustration is provided only as a sample and may not literally appear in this manual.
  • Page 11: Sections In This Manual

    Sections in this Manual Overview Basic System Configuration and Devices Nomenclature and Functions Support Software Installation Troubleshooting Inspection and Maintenance Backup Operations Appendices CJ2 CPU Unit Hardware User’s Manual...
  • Page 12 CJ2 CPU Unit Hardware User’s Manual...
  • Page 13: Table Of Contents

    Application Precautions..................21 Operating Environment Precautions ..............25 Regulations and Standards ................... 26 Related Manuals ..................... 28 Section 1 Overview Overview of CJ2 CPU Units ....................1-2 1-1-1 Overview............................. 1-2 1-1-2 CJ2 CPU Unit Features ......................1-3 Basic Operating Procedure ....................1-7 Specifications ..........................
  • Page 14 Errors and Remedies ........................6-2 6-1-2 Checking Errors .......................... 6-2 6-1-3 Checking Detailed Status......................6-3 6-1-4 Reading Error Log Information....................6-3 6-1-5 I/O Table Verification ........................6-5 6-1-6 Types of Errors ..........................6-6 6-1-7 Handling Errors ........................... 6-7 CJ2 CPU Unit Hardware User’s Manual...
  • Page 15 RS-232C Port Specifications ....................A-101 A-4-2 Connection Examples......................A-102 A-4-3 Applicable Connectors and Recommended Cables ............... A-105 A-4-4 Example of Recommended RS-232C Wiring ................. A-106 A-4-5 Wiring Connectors ........................A-107 A-5 Installing the USB Driver ....................A-110 CJ2 CPU Unit Hardware User’s Manual...
  • Page 16 A-6 Load Short-circuit Protection and Line Disconnection Detection for Basic I/O Units ..A-115 A-6-1 Load Short-circuit Protection and Line Disconnection Detection for CJ1W-OD202....A-115 A-6-2 Load Short-circuit Protection for CJ1W-OD204/OD212/OD232/MD232 .........A-117 A-7 Relay Output Noise Reduction Methods ................A-119 index ........................ Index-1 CJ2 CPU Unit Hardware User’s Manual...
  • Page 17 WHETHER SUCH CLAIM IS BASED ON CONTRACT, WARRANTY, NEGLIGENCE, OR STRICT LIABILITY. In no event shall the responsibility of OMRON for any act exceed the individual price of the product on which liability is asserted. IN NO EVENT SHALL OMRON BE RESPONSIBLE FOR WARRANTY, REPAIR, OR OTHER CLAIMS...
  • Page 18 Application Considerations SUITABILITY FOR USE OMRON shall not be responsible for conformity with any standards, codes, or regulations that apply to the combination of products in the customer's application or use of the products. At the customer's request, OMRON will provide applicable third party certification documents identifying ratings and limitations of use that apply to the products.
  • Page 19 Performance data given in this manual is provided as a guide for the user in determining suitability and does not constitute a warranty. It may represent the result of OMRON's test conditions, and the users must correlate it to actual application requirements. Actual performance is subject to the OMRON Warranty and Limitations of Liability.
  • Page 20 CJ2 CPU Unit Hardware User’s Manual...
  • Page 21: Safety Precautions

    Indicates precautions on what to do and what not to do to ensure using the product safely. Precautions for Correct Use Indicates precautions on what to do and what not to do to ensure proper operation and performance. CJ2 CPU Unit Hardware User’s Manual...
  • Page 22 This example indicates a general precaution. The triangle symbol indicates precautions (including warnings). The specific operation is shown in the triangle and explained in text. This example indicates a precaution for hot surfaces. CJ2 CPU Unit Hardware User’s Manual...
  • Page 23 Fail-safe measures must be taken by the customer to ensure safety in the event of incorrect, missing, or abnormal signals caused by broken signal lines, momentary power interruptions, or other causes. Serious accidents may result from abnormal operation if proper measures are not provided. CJ2 CPU Unit Hardware User’s Manual...
  • Page 24 CX-Programmer as required before starting operation after restoring data that includes forced status. Depending on the difference in the forced status, the control system may operate unexpectedly. CJ2 CPU Unit Hardware User’s Manual...
  • Page 25 I/O memory area. Doing either of these without confirming safety may result in injury. The CJ2 CPU Units automatically back up the user program and parameter data to flash memory when these are written to the CPU Unit. I/O memory including the DM, EM, and Holding Areas), however, is not written to flash memory.
  • Page 26 If a indirect specification causes the address to exceed the area of the start address, the system will access data in other area, and unexpected opera- tion may occur. CJ2 CPU Unit Hardware User’s Manual...
  • Page 27: Application Precautions

    • Do not install the PLC near sources of strong high-frequency noise. • Before touching a Unit, be sure to first touch a grounded metallic object in order to discharge any static build-up. Not doing so may result in malfunction or damage. CJ2 CPU Unit Hardware User’s Manual...
  • Page 28 Supply Unit before performing withstand voltage tests or insulation resistance tests. Not doing so may result in burning. • Make sure that the DIP switches and DM Area are set correctly before starting operation. CJ2 CPU Unit Hardware User’s Manual...
  • Page 29 It is thus not necessary to clear memory and set the clock before using a CJ-series CPU Unit. This point differs from the CS-series CS1 CPU Units. CJ2 CPU Unit Hardware User’s Manual...
  • Page 30 • The user program and parameter area data in the CJ2 CPU Units are backed up in the built-in flash memory. The BKUP indicator will light on the front of the CPU Unit when the backup opera- tion is in progress. Do not turn OFF the power supply to the CPU Unit when the BKUP indicator is lit.
  • Page 31: Operating Environment Precautions

    • Locations subject to static electricity or other forms of noise. • Locations subject to strong electromagnetic fields. • Locations subject to possible exposure to radioactivity. • Locations close to power supplies. CJ2 CPU Unit Hardware User’s Manual...
  • Page 32: Regulations And Standards

    Concepts EMC Directives OMRON devices that comply with EC Directives also conform to the related EMC standards so that they can be more easily built into other devices or the overall machine. The actual products have been checked for conformity to EMC standards (see the following note). Whether the products con- form to the standards in the system used by the customer, however, must be checked by the cus- tomer.
  • Page 33 Model TAH-06-683 Trademarks SYSMAC is a registered trademark for Programmable Controllers made by OMRON Corporation. CX-One is a registered trademark for Programming Software made by OMRON Corporation. Windows is a registered trademark of Microsoft Corporation. Other system names and product names in this document are the trademarks or registered trademarks of their respective companies.
  • Page 34: Related Manuals

    Related Manuals Manuals related to a PLC built using a CJ-series CJ2 CPU Unit are listed in the following table. Use these manuals for reference. Manual Cat. No. Model Application Description CJ-series CJ2 CPU W472 CJ2H-CPU@@-EIP Hardware specifications for Describes the following for CJ2 CPU Units:...
  • Page 35 Reference Manual (W474). grammer version 6.1 or higher CS/CJ/CP/NSJ- W464 CXONE-AL@@C-V3/ Network setup and moni- Describes the operating procedures for the CX- series CX-Integrator CXONE-AL@@D-V3 toring Integrator. Network Configura- tion Software Opera- tion Manual CJ2 CPU Unit Hardware User’s Manual...
  • Page 36 CJ2 CPU Unit Hardware User’s Manual...
  • Page 37: Overview

    Overview This section provides an overview of the CJ2 PLCs. Overview of CJ2 CPU Units ....................1-2 1-1-1 Overview ............................ 1-2 1-1-2 CJ2 CPU Unit Features ......................1-3 Basic Operating Procedure ....................1-7 Specifications ......................... 1-8 1-3-1 General Specifications ....................... 1-8 1-3-2 Performance Specifications .......................
  • Page 38: Overview Of Cj2 Cpu Units

    USB and EtherNet/IP ports. Tag Access CJ2 CPU Units have a tag name server to manage tag names and I/O addresses. This enables access from external devices using tag names, without needing to know the I/O addresses.
  • Page 39: Cj2 Cpu Unit Features

    The CJ2 CPU Units provide a large program capacity of up to 400 Ksteps. Large Data Memory Capacity The CJ2 CPU Units provide a large EM Area capacity of up to 800 Kwords (25 banks). Up to 128 Cyclic Tasks The user program can be divided into up to 128 tasks.
  • Page 40 Prevent Connecting to the Wrong PLC by Using PLC Names from Support Software A user-set PLC name can be recorded in a CJ2 CPU Unit. When using Support Software to connect online to a PLC, verification of the PLC name prevents incorrect connections from the Support Soft- ware.
  • Page 41 The format for timer/counter PV refreshing can be selected individually for each instruction. Either BCD or binary can be selected individually for each instruction as the format for timer/counter PV refreshing. For example, the TIM (BCD) and TIMX (binary) instructions can be used together. CJ2 CPU Unit Hardware User’s Manual...
  • Page 42 Fast, High-capacity Data Tracing Up to 32 Kwords of data can be traced (8 time more than previously), with ample trigger conditions, and data can be traced continuously for long periods of time. CJ2 CPU Unit Hardware User’s Manual...
  • Page 43: Basic Operating Procedure

    • DM Area Settings for Special I/O Units and CPU Bus Units: Refer to Section 8 I/O Allocations and Unit Settings in the CJ2 CPU Unit Software Operation Manual (Cat. No. W473). • PLC Setup: Refer to Section 9 PLC Setup in the CJ2 CPU Unit Software Operation Manual (Cat. No. W473).
  • Page 44: Specifications

    Conforms to JIS C60068-2-27. 147 m/s , 3 times in X, Y, and Z directions (100 m/s for Relay Output Units) Battery Life 5 years at 25°C Model CJ1W-BAT01 Applicable Standards Conforms to cULus and EC Directives. CJ2 CPU Unit Hardware User’s Manual...
  • Page 45: Performance Specifications

    Programs are executed, and some operations, such as online editing, and changes to present values in I/O memory, are enabled in this mode. RUN Mode: Programs are executed. This is the normal operating mode. Execution Mode Normal Mode CJ2 CPU Unit Hardware User’s Manual...
  • Page 46 −32,768 to +32,767 ms Delay Value File Memory Memory Card (128, 256, or 512 Mbytes) (Use the Memory Cards provided by OMRON.) EM file memory (Part of the EM Area can be converted for use as file memory.) Source/Com- Function block program memory, Capacity: 3.5 Mbytes...
  • Page 47 CIP Routing OK (CIP routing is enabled for the following remote Units: CJ1W-EIP21 and CJ2H-CPU6@-EIP.) FINS Communications FINS/UDP FINS/TCP 16 connections max. EtherNet/IP Conformance Test Conforms to A5. EtherNet/IP Interface 10Base-T/100Base-TX Auto Negotiation/Fixed Setting CJ2 CPU Unit Hardware User’s Manual 1-11...
  • Page 48 *5 The EtherNet/IP port supports an IGMP client, so unnecessary multicast packets are filtered by using a switching hub that supports IGMP snooping. 1-12 CJ2 CPU Unit Hardware User’s Manual...
  • Page 49: Function Specifications

    Data in I/O memory in the CPU Unit can be written to a Memory Card in Memory Card CSV/TXT format. Data in CSV/TXT format in the Memory Card can be read to I/O memory in the CPU Unit. CJ2 CPU Unit Hardware User’s Manual 1-13...
  • Page 50 A history of the times when the power was turned ON is stored. User Program Overwritten Time Storage The time that the user program was last overwritten is stored. Parameter Date Storage The time when the Parameter Area was overwritten is stored. 1-14 CJ2 CPU Unit Hardware User’s Manual...
  • Page 51 CPU Standby Detection This function indicates when the CPU Unit is on standby because all Special I/O Units and CPU Bus Units have not been recognized at the startup in RUN or MONITOR mode. CJ2 CPU Unit Hardware User’s Manual 1-15...
  • Page 52 Overflow Error Detec- address in user program area. tion Cycle Time Exceeded This function monitors the cycle time (10 to 40,000 ms) and stops the operation Error Detection when the set value is exceeded. 1-16 CJ2 CPU Unit Hardware User’s Manual...
  • Page 53 Hardware ID Using Lot Numbers This function sets operation protection by identifying hardware using the user programs according to lot numbers stored in the Auxiliary Area. CJ2 CPU Unit Hardware User’s Manual 1-17...
  • Page 54 1 Overview 1-18 CJ2 CPU Unit Hardware User’s Manual...
  • Page 55: Basic System Configuration And Devices

    Basic System Configuration and Devices This section describes the basic system configuration and devices used in a CJ2 PLC. The CJ Series supports the following two types of system configuration. • Basic System Configuration: System consisting of CPU Rack and Expansion Racks.
  • Page 56: Basic System Configuration

    Units (Basic I/O Units, Special I/O Units, CPU Bus Units), and a CJ-series End Cover. The same CJ- series Power Supply Units and CJ-series Configuration Units that are used with CJ1 CPU Units are used with CJ2 CPU Units. An I/O Control Unit is required to connect a CJ-series Expansion Rack. A Memory Card is optional.
  • Page 57 2 Basic System Configuration and Devices 2-1-2 CPU Rack The CPU Rack consists of a CJ2 CPU Unit, a CJ-series Power Supply Unit, CJ-series Configuration Units, and a CJ-series End Cover. Up to 10 Configuration Units can be connected. I/O Control Unit...
  • Page 58: Memory Cards

    70 g max. CJ-series CPU Rack. Must be connected immediately to the right of the CPU Unit. Connect to the I/O Interface Unit (CJ1W-II101) on the first Expansion Rack with a CS/CJ-series I/O Connecting Cable. CJ2 CPU Unit Hardware User’s Manual...
  • Page 59 100Base-TX twisted- Twisted-pair cable with RJ45 Modular Connectors pair cable on both ends. Connect between EtherNet/IP Unit or built-in EtherNet/IP port and switching hub. Use STP (shielded twisted-pair) cable of category 5 or 5e. CJ2 CPU Unit Hardware User’s Manual...
  • Page 60 PLC-based process control. • CX-Programmer • CX-Integrator • SwitchBox Utility • CX-Simulator • CX-Protocol • CX-Designer • CX-Thermo • CX-Position • CX-Motion/CX-Motion-NCF/CX-Motion-MCH • CX-Drive • CX-Process Tool • NS Faceplate Auto-Builder • CX-FLnet • Network Configurator CJ2 CPU Unit Hardware User’s Manual...
  • Page 61 12 m CS/CJ-series I/O Connecting Cable Racks: 30 cm, 70 cm, 2 m, 3 m, 5 m, 10 m, 12 m 3 maximum I/O Interface Unit CJ-series Expansion Rack Power Supply Unit 10 Units max. CJ2 CPU Unit Hardware User’s Manual...
  • Page 62 24 VDC CJ1W-II101 One Interface Unit is required for each CJ-series Expan- 0.13 A 130 g sion Rack. One End Cover is provided with each Unit. max. *1 Includes the weight of the End Cover. CJ2 CPU Unit Hardware User’s Manual...
  • Page 63 An I/O Connecting Cable connects an I/O Control Unit (CJ1W-IC101) to an 0.3 m I/O Interface Unit (CJ1W-II101), or connects an I/O Interface Unit to CS1W-CN713 0.7 m another I/O Interface Unit. CS1W-CN223 CS1W-CN323 CS1W-CN523 CS1W-CN133 10 m CS1W-CN133B2 12 m CJ2 CPU Unit Hardware User’s Manual...
  • Page 64: Configuration Units

    Maximum Number of Units A maximum of 10 Units can be connected to the CPU Rack for a CJ2 CPU Unit or to an Expansion Rack. There are no restrictions in the number of each model of Unit based on location.
  • Page 65 *1 The cable-side connector is not provided with Units equipped with cables. Purchase the cable separately (Refer to 5-3-3 Wiring Basic I/O Units with Connectors.), or use an OMRON Connector- Terminal Block Con- version Unit or I/O Terminal (Refer to 5-3-4 Connecting to Connector-Terminal Block Conversion Units or I/O Relay Terminals.).
  • Page 66 *1 The cable-side connector is not provided with Units equipped with cables. Purchase the cable separately (Refer to 5-3-3 Wiring Basic I/O Units with Connectors.), or use an OMRON Connector- Terminal Block Con- version Unit or I/O Terminal (Refer to 5-3-4 Connecting to Connector-Terminal Block Conversion Units or I/O Relay Terminals.).
  • Page 67 *1 The cable-side connector is not provided with Units equipped with cables. Purchase the cable separately (Refer to 5-3-3 Wiring Basic I/O Units with Connectors.), or use an OMRON Connector- Terminal Block Con- version Unit or I/O Terminal (Refer to 5-3-4 Connecting to Connector-Terminal Block Conversion Units or I/O Relay Terminals.).
  • Page 68 2 unit numbers) 4 control loops, tem- CJ1W-TC101 20 words 200 words 0 to 94 0.25 150 g max. perature- resistance (uses thermometer inputs, words for NPN outputs 2 unit numbers) 2-14 CJ2 CPU Unit Hardware User’s Manual...
  • Page 69 I/O: 2,048 words, 512 bits max. Compo- CompoBus/S remote CJ1W-SRM21 10 words or None 0 to 95 or 0.15 66 g max. Bus/S Mas- I/O, 256 bits max. 20 words 0 to 94 ter Units CJ2 CPU Unit Hardware User’s Manual 2-15...
  • Page 70 1,024 outputs for 1 unit Word Slaves and number) 256 inputs/256 outputs for Bit Slaves maximum *1 The Space Unit is for Position Control Units. *2 Includes the weight of accessory connectors. 2-16 CJ2 CPU Unit Hardware User’s Manual...
  • Page 71 CPU Bus Unit Setting Area does not exceed its capacity. Refer to 4-6-2 Proce- dure for Setting CPU Bus Unit Setup Area in the CJ2 CPU Unit Software User’s Manual (Cat. No. W473).
  • Page 72: Calculating Unit Current Consumption

    1.83 A (≤5.0 A) 0.096 A (≤0.8 A) 2.51 × 5 V = 9.15 W 0.096 A × 24 V = 2.304 W Power consump- Calculation tion Result 9.15 + 2.30 = 11.45 W (≤25 W) 2-18 CJ2 CPU Unit Hardware User’s Manual...
  • Page 73 Rack Current Consumption and Width Display To display the current consumption and width of Units connected in the CPU Rack or Expansion Rack, select Current Consumption and Width from the Options Menu in the CJ2 CPU Unit I/O Table Window.
  • Page 74: Calculating Power Consumption

    Rated input voltage × Input current × Number of input points • Output Units Residual voltage × Maximum load current × Number of output points Note For the CJ Series, calculate the residual voltage at 0.1 V. 2-20 CJ2 CPU Unit Hardware User’s Manual...
  • Page 75 W_IO_ONOFF = 24 V × 0.0041 A x 128 points + 0.1 × 0.3 A × 128 points = 16.43 W Average Power Consumption (W) W = W_PLC + W_IO_ONOFF = 34.29 W CJ2 CPU Unit Hardware User’s Manual 2-21...
  • Page 76: Expanded System Configuration

    Various protocols, including Host Link and NT Link, can be used with the serial communications port. A particular protocol can be supported by switching the mode of the serial communications port. For details on the serial communications modes that are supported, refer to the CJ2 CPU Unit Software User’s Manual (Cat. No. W473).
  • Page 77: System Configuration Example

    For details on the protocol modes that can be selected for each port, refer to 11-2-1 Overview of Serial Communications in the CJ2 CPU Unit Software User’s Manual (Cat. No. W473). Additional Information Use the Peripheral Bus to connect the CJ2 CPU Unit to the CX-Programmer via serial communi- cations. CJ2 CPU Unit Hardware User’s Manual...
  • Page 78: Communications Networks

    The CJ Series supports the following communications networks. Select the appropriate network according to the applications. For details on communications networks, refer to 11-3 Communications Networks in the CJ2 CPU Unit Software User’s Manual (Cat. No. W473). EtherNet/IP, Ethernet Connect via the built-in...
  • Page 79 Large-capacity remote I/O (fixed DeviceNet Master Unit and (Slaves). or free allocation) in an open net- Configurator work CompoNet High-speed, multi-point, multi- CompoNet Master Unit node remote I/O in an open net- work CJ2 CPU Unit Hardware User’s Manual 2-25...
  • Page 80 2 Basic System Configuration and Devices 2-26 CJ2 CPU Unit Hardware User’s Manual...
  • Page 81: Nomenclature And Functions

    Nomenclature and Functions This section gives the parts of a CJ2 PLC and describes the functions of the parts. 3-1 CPU Units ........... . 3-2 3-1-1 CPU Section .
  • Page 82: Cpu Units

    6. Memory Card Eject Button (Refer to 3-2 Memory Card.) 11. Connector Press the eject button to remove the Memory Card from Connected to the next Unit. the CPU Unit. 7. Slider Secures the CPU Unit to the next Unit. CJ2 CPU Unit Hardware User’s Manual...
  • Page 83 CPU Unit EtherNet/IP port (Refer to 3-1-2 Built-in EtherNet/IP Section.) The CJ2 CPU Unit status can be checked with the indicators at the top of the front panel of the Unit. The following table describes these indicators. Indicator Color...
  • Page 84 3 Nomenclature and Functions Memory Card Indicators The status of a Memory Card mounted in the CJ2 CPU Unit can be checked with the indicators in the middle of the front panel of the Unit. The following table describes these indicators.
  • Page 85 OFF (default) NT Link 5. No-protocol OFF (default) No-protocol 6. Serial Gateway OFF (default) Serial Gateway *1 Set using the CX-Programmer. *2 Connection is not possible from CX-One Support Software using the SYSMAC WAY protocol. CJ2 CPU Unit Hardware User’s Manual...
  • Page 86 PROGRAM mode and no operations in any other mode will be possible. To switch to RUN or MONITOR mode, turn OFF the power, turn OFF pin 7, turn the power back ON, and use a Programming Device to change the operating mode. CJ2 CPU Unit Hardware User’s Manual...
  • Page 87: Built-In Ethernet/Ip Section

    Special I/O Unit. For details on the Edit Parameters, refer to 8-2 Setting CPU Bus Units and Special I/O Units in the CJ2 CPU Unit Software User’s Manual (Cat. No. W473). For details on specifications and settings for the built-in EtherNet/IP port, refer to the CS/CJ Series EtherNet/IP Units Operation Manual (Cat.
  • Page 88 IP address set for the built-in EtherNet/IP port will be displayed on the 7- segment display from right to left. After the entire IP address is displayed, the lower 8 bits of the IP address (node address) will be displayed in hexadecimal. CJ2 CPU Unit Hardware User’s Manual...
  • Page 89 : Er d5 IP 40 : Er c6 : Er EA Displays errors that occurred within the Unit. : IP 0A The last digits of the Unit’ s IP address is displayed in hexadecimal. CJ2 CPU Unit Hardware User’s Manual...
  • Page 90 • d6 errors (failure to connect) have occurred in communications with IP address 10.0.2.8. Rotary Switches The unit number and node address for the CJ2 CPU Unit built-in EtherNet/IP port are set using the rotary switches. The unit number and node address are allocated in the same way as for a CPU Bus Unit.
  • Page 91 IP address table method or the IP address + automatic gener- ation method. For details, refer to the CS/CJ Series EtherNet/IP Units Operation Manual (Cat. No. W465). CJ2 CPU Unit Hardware User’s Manual 3-11...
  • Page 92: Memory Card

    The simple backup function copies all CPU Unit data (user program, parameters, and I/O mem- ory) to a Memory Card, without having to use a Programming Device. For details, refer to 8-3 Simple Backup. 3-12 CJ2 CPU Unit Hardware User’s Manual...
  • Page 93: Installing And Removing

    Pull the top end of the Memory Card cover forward and remove from the Unit. Insert the Memory Card with the label facing to the left. (Insert with the ∆ on the Memory Card label and the ∆ on the CPU Unit facing each other.) Product label CJ2 CPU Unit Hardware User’s Manual 3-13...
  • Page 94 Press the Memory Card eject button after the BUSY indicator is no longer lit. The Memory Card will be ejected from the compartment. BUSY indicator Memory Card eject button Pull out the Memory Card. 3-14 CJ2 CPU Unit Hardware User’s Manual...
  • Page 95 3 Nomenclature and Functions Install the Memory Card cover when a Memory Card is not being used. Installing the Memory Card into a Personal Computer HMC-AP001 Memory Card Adapter Memory Card Personal computer PC card slot CJ2 CPU Unit Hardware User’s Manual 3-15...
  • Page 96: Power Supply Units

    (resistive load) 24 VDC, 2 A (inductive load) Replacement notifi- Not provided. With Alarm Not provided. Not provided. Not provided. cation function output (open col- lector output) 30 VDC max., 50 mA max. 3-16 CJ2 CPU Unit Hardware User’s Manual...
  • Page 97 10% to 90% (with no condensation) humidity no condensation) no condensa- tion) Atmosphere Must be free from corrosive gases. −20 to 75°C −20 to 75°C (excluding battery) −20 to 75°C Ambient storage tem- perature (excluding bat- tery) CJ2 CPU Unit Hardware User’s Manual 3-17...
  • Page 98 *7 Internal components in the Power Supply Unit will deteriorate or be damaged if the Power Supply Unit is used for an extended period of time exceeding the power supply output capacity or if the outputs are shorted. 3-18 CJ2 CPU Unit Hardware User’s Manual...
  • Page 99: Components

    ALARM :OFF Alarm output (replacement notification output) Example: CJ1W-PA202 PA202 POWER External connection terminals POWER Indicator Lit when 5 V are being output from the Power Supply Unit. AC100 AC input -240V INPUT L2/N CJ2 CPU Unit Hardware User’s Manual 3-19...
  • Page 100 Allowable power supply voltage Model fluctuation range CJ1W-PD025 19.2 to 28.8 VDC (±20%) CJ1W-PD022 21.6 to 26.4 VDC (±10%) Ground to a resistance of 100 Ω or less to increase noise resistance and avoid electric shock. 3-20 CJ2 CPU Unit Hardware User’s Manual...
  • Page 101: Selecting A Power Supply Unit

    For details on the current consumption of individual Units, refer to 2-1-4 Configuration Units. Current Consumption at 5 VDC The following table shows the current that can be supplied to Units (including the CJ2 CPU Unit) that use 5-VDC power.
  • Page 102 For details on the current consumption of individual Units, refer to 2-1-2 CPU Rack, 2-1-3 Expansion Racks, and 2-1-4 Configuration Units. Refer to 2-1-5 Calculating Unit Current Consumption for an example of calculating the current consumption. 3-22 CJ2 CPU Unit Hardware User’s Manual...
  • Page 103: Cj-Series Basic I/O Units

    CPU Unit Interrupt Input Unit 1 cyclic task I/O interrupt task is executed when the input MSKS turns ON (or OFF). Immediate Input I/O interrupt task interrupt (rising or falling edge) CJ2 CPU Unit Hardware User’s Manual 3-23...
  • Page 104 Basic I/O Unit input time constants in the PLC Setup, and the setting status in A200 to A259 will not be valid. Input Signal Width Input signals must meet the following conditions. Unit ON time OFF time CJ1W-INT01 0.05 ms min. 0.5 ms min. 3-24 CJ2 CPU Unit Hardware User’s Manual...
  • Page 105: Thirty-Two/Sixty-Four-Point Basic I/O Units With Connectors

    0 1 2 3 4 5 6 7 Word m or 1 01 1 1 21 31 41 5 0 1 2 3 4 5 6 7 Word m+1 1 01 1 1 21 31 41 5 or m+3 CJ2 CPU Unit Hardware User’s Manual 3-25...
  • Page 106: I/O Control Units And I/O Interface Units

    Power CJ1W-IC101 CPU Unit Supply Unit I/O Control Unit CJ2 CPU Unit. If it is not immediately to the right of the CPU Unit, correct operation may not be possible. CPU Rack The I/O Interface Unit is connected directly to the Power Supply Unit.
  • Page 107 Support Software This section describes the software that is used to program and debug a CJ2 PLC. It also describes how to connect the Programming Device and the PLC. 4-1 Support Software ..........4-2 4-1-1 CX-One FA Integrated Tool Package .
  • Page 108: Cx-One Fa Integrated Tool Package

    4-1-1 CX-One FA Integrated Tool Package The CX-One provides an integrated package of Support Software for OMRON PLCs and components. It consists of software applications for PLC programming, network settings, touch-panel screen cre- ation, servo control, inverters, temperature control, and other functions.
  • Page 109 Software for automatic generation of screen data (project files) for touch control Face Plate Auto- panel NS-series PTs from Loop Controller function block tag informa- Builder for NS tion. Temperature control Software for setting and adjusting Temperature Controller parameters. CX-Thermo settings CJ2 CPU Unit Hardware User’s Manual...
  • Page 110 General network Network configuration settings and monitoring reading Network testing CX-Integrator Data link settings Controller Link Diagnosis Controller Link Controller Link diagnosis settings and monitoring DeviceNet settings DeviceNet settings CompoWay/F CompoWay/F slave settings settings CJ2 CPU Unit Hardware User’s Manual...
  • Page 111 4 Support Software Network Configurator The Network Configurator is software for setting tag data links using the built-in EtherNet/IP port. Tag data link settings EtherNet/IP network Network settings and Configurator monitoring Device monitoring CJ2 CPU Unit Hardware User’s Manual...
  • Page 112: Connection Methods

    4 Support Software Connection Methods The CJ2 CPU Unit can be connected by USB cable, Ethernet twisted-pair cable, or RS-232C cable to a personal computer with CX-One Support Software (e.g., CX-Programmer) installed. 4-2-1 Connecting by USB Connection Method Using commercially available USB cable, connect CX-One Support Software via a standard peripheral (USB) port at the personal computer.
  • Page 113 Based on USB specifications, the following restrictions apply when connecting a personal computer and components. • Only one CJ2 CPU Unit can be connected by USB to a single personal computer. It is not possible to connect multiple CJ2 CPU Units simultaneously.
  • Page 114: Connecting By Rs-232C

    Connecting to the PLC by EtherNet/IP via USB or RS-232C The Support Software can be directly connected by USB or RS-232C to one CJ2 CPU Unit and access other CPU Units on the EtherNet/IP network via the built-in EtherNet/IP ports on the CJ2 CPU Units.
  • Page 115 It is possible to create RS-232C cable for connecting to the serial port (RS-232C). The connec- tors shown in the following table are included with the CJ2 CPU Unit as standard equipment for creating cables. For details on creating cables, refer to A-4 Connecting to the RS-232C Serial Port on the CPU Unit.
  • Page 116: Connecting By Ethernet

    100Base-TX twisted-pair cable (straight) Switching hub 100Base-TX twisted-pair cable (straight) Connecting Cable Use the following cable to connect the CJ2 CPU Unit to the computer running the Support Software. Network type Port at Port at Unit (communications Model Length Remarks...
  • Page 117 CX-Programmer Settings The method for connecting the PLC to the personal computer is set using the CX-Programmer. For details on using the CX-Programmer to set the connection method, refer to the CJ2 CPU Unit Software User’s Manual (Cat. No. W473).
  • Page 118 • Duplicated rack number error • I/O setting error If any of the above errors occurs and connecting to the Programming Device though the built-in EtherNet/IP port is not possible, connect through the USB port. 4-12 CJ2 CPU Unit Hardware User’s Manual...
  • Page 119: Installation

    Installation This section describes how to install and wire a CJ2 PLC. 5-1 Fail-safe Circuits ..........5-2 5-2 Installation .
  • Page 120: Fail-Safe Circuits

    *1 A RUN output is provided only on the CJ1W-PA205R Power Supply Unit. When a Power Supply Unit without a RUN output is used, program the Always ON Flag (A1) as the execution condition for an output point from an Output Unit. CJ2 CPU Unit Hardware User’s Manual...
  • Page 121 This circuit prevents outputs MC1 and MC2 from both being ON at the same time even if both CIO 000501 and CIO 000502 are ON, so the motor is protected even if the PLC is programmed improp- erly or malfunctions. CJ2 CPU Unit Hardware User’s Manual...
  • Page 122: Installation

    • Ground the mounting plate between the PLC and the mounting surface. • When I/O Connecting Cables are 10 m or longer, connect the control panels in which Racks are mounted with heavier power wires (3 wires at least 2 mm in cross-sectional area). CJ2 CPU Unit Hardware User’s Manual...
  • Page 123 Always use the standard installation method. A nonstandard installation will decrease heat dissi- pation, and may delay the replacement notification signal (in particular for Power Supply Units with Replacement Notification (CJ1W-PA205C)), or degrade or damage the internal elements. CJ2 CPU Unit Hardware User’s Manual...
  • Page 124: Installation In A Control Panel

    Racks. Duct 20 mm min. DIN Track Unit 20 mm min. Duct Wiring Ducts 81.6 to 89 mm Rack 30 mm 30 mm Mounting bracket Expan- sion 40 mm Rack Duct CJ2 CPU Unit Hardware User’s Manual...
  • Page 125 CPU Rack Breakers, fuses Expansion Rack Power equipment such as transformers and magnetic relays Fuses, relays, timers, etc. (NOT heat-generating equip- Terminal blocks for Terminal blocks ment, power equipment, etc.) power equipment for PLC CJ2 CPU Unit Hardware User’s Manual...
  • Page 126: Assembled Appearance And Dimensions

    20 mm, 31 mm, 51 mm, and 79.8 mm. 20-mm-wide Units Name Model number Unit width I/O Control Unit CJ1W-IC101 20 mm 32-point Basic I/O Units CJ1W-ID231/ID232 CJ1W-OD231/OD232/OD233 B7A Interface Units CJ1W-B7A22 CJ1W-B7A14 CJ1W-B7A04 CompoBus/S Master Unit CJ1W-SRM21 Space Unit CJ1W-SP001 CJ2 CPU Unit Hardware User’s Manual...
  • Page 127 CJ1W-SCU41-V1 CJ1W-SCU21-V1 CJ1W-SCU31-V1 Ethernet Unit CJ1W-ETN21 DeviceNet Unit CJ1W-DRM21 CompoNet Master Unit CJ1W-CRM21 FL-net Unit CJ1W-FLN22 51-mm-wide Units Name Model number Unit width SYSMAC SPU Unit (High- CJ1W-SPU01-V2 51 mm speed Data Storage Unit) CJ2 CPU Unit Hardware User’s Manual...
  • Page 128 Special I/O Units: CJ1W-AD081-V1 (31 mm) × 4 CPU Bus Unit: CJ1W-MCH71 (79.8 mm) W = 80 + 79.8 + 20 x 2 + 31 × 4 + 79.8 × 1 + 14.7 (End Cover) = 418.3 mm 5-10 CJ2 CPU Unit Hardware User’s Manual...
  • Page 129: Connecting Plc Components

    Units. The End Cover is connected in the same way to the Unit on the far right side of the PLC. Join the Units so that the connectors fit exactly. Hook holes Hook Connector CJ2 CPU Unit Hardware User’s Manual 5-11...
  • Page 130 *2: Connect the I/O Interface Unit directly to the Power Supply Unit. Additional Information There is no Backplane for the CJ-series. The PLC is constructed by connecting Units together using the connectors on the sides. 5-12 CJ2 CPU Unit Hardware User’s Manual...
  • Page 131 Configuration Units can be connected to an Expansion Rack. If more than the maximum number of Units are connected, a too many I/O points error (fatal error) will occur and the CJ2 CPU Unit will not operate in either RUN or MONITOR mode. If this occurs, The I/O Overflow Flag (A401.11) will turn ON and A407.13 to A407.15 (I/O Overflow Details 2) will turn ON.
  • Page 132: Din Track Installation

    Fit the back of the PLC onto the DIN Track by inserting the top of the track and then pressing in at the bottom of the PLC, as shown below. DIN Track Lock the pins on the backs of the CJ-series Units. DIN Track mounting pins 5-14 CJ2 CPU Unit Hardware User’s Manual...
  • Page 133 Twenty-eight, 25 x 4.5 oblong holes 30 0.3 29.2 1000 PFP-100N/50N DIN Track 7.3 0.15 35 0.3 27 0.15 15 (5)* 1000 (500)* * PFP-50N dimensions are given in parentheses. • PFP-M DIN Track End Plates (2 required) CJ2 CPU Unit Hardware User’s Manual 5-15...
  • Page 134: Connecting Cj-Series Expansion Racks

    Rack. The Rack will not operate if the cables aren’t connected properly. (The “up” direction is towards the CPU Unit and “down” is away from the CPU Unit.) I/O Control Unit CPU Unit CPU Rack Power Supply Unit Down Expansion Rack Power Supply Unit I/O Interface Unit Down 5-16 CJ2 CPU Unit Hardware User’s Manual...
  • Page 135: Cable Connections

    Press the tabs on the end of the connector and insert the connector until it locks in place. The PLC will not operate properly if the connector isn’t inserted completely. To remove the connector, press the tabs and pull on the connector. CJ2 CPU Unit Hardware User’s Manual 5-17...
  • Page 136 • Always attach the cover to the output connector (left side) on the last I/O Interface Unit on the last Expansion Rack to protect it from dust. CJ1W-II101 I/O Interface Unit II101 Output connector cover 5-18 CJ2 CPU Unit Hardware User’s Manual...
  • Page 137: Wiring

    CPU Unit is operating in RUN or MONITOR mode; it is OFF when the CPU Unit is in PRO- GRAM mode or a fatal error has occurred (including execution of the FALS(007) instruction). CJ2 CPU Unit Hardware User’s Manual 5-19...
  • Page 138 This label prevents wire strands and other foreign matter from entering the Unit during wiring procedures. • Do not forget to remove the label from the top of the Power Supply Unit after wiring the Unit. The label will block air circulation needed for cooling. 5-20 CJ2 CPU Unit Hardware User’s Manual...
  • Page 139 24 V side, as shown below. Wiring in Which the 24-V Power Supply Will Short Non-insulated 24 V DC power supply Peripheral cable Peripheral device (e.g., Power Supply CPU Unit personal computer) Unit CJ2 CPU Unit Hardware User’s Manual 5-21...
  • Page 140 • Do not share the PLC’s ground with other equipment or ground the PLC to the metal structure of a building. The configuration shown in the following diagram may worsen operation. 5-22 CJ2 CPU Unit Hardware User’s Manual...
  • Page 141: Output Specifications

    • OFF: Power Supply Unit replacement required within 6 months. • Transistor open-collector outputs • Maximum switching capacity: 30 VDC max., 50 mA max. • ON: Residual voltage of 2 V max., OFF: Leakage current of 0.1 mA max. CJ2 CPU Unit Hardware User’s Manual 5-23...
  • Page 142 The alarm output (replacement notification output) is an NC contact. Therefore, wire the alarm out- put using an NC contact or other means to turn ON an error indicator or LED display as shown in the following diagram. 5-24 CJ2 CPU Unit Hardware User’s Manual...
  • Page 143: Wiring Cj-Series Basic I/O Units With Terminal Blocks

    • Do not connect bare stranded wires directly to terminals. • Tighten the terminal block screws to the torque of 0.5 N·m. • Use crimp terminals (M3) having the dimensions shown below. 6.2 mm max. 6.2 mm max. CJ2 CPU Unit Hardware User’s Manual 5-25...
  • Page 144 • After you complete wiring, check to see if the terminal block is securely locked. 0 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 Terminal block lever CJ-series Basic I/O Unit 5-26 CJ2 CPU Unit Hardware User’s Manual...
  • Page 145: Wiring Basic I/O Units With Connectors

    Depending on the connector, the following methods are used to connect these Units to external I/O devices. • Use an OMRON Connecting Cable (equipped with a special connector) to connect to a Terminal Block or Relay Terminal. • Use a special connector and user-provided cable.
  • Page 146 TTL Input/TTL Output Units, 32 inputs, 32 outputs CJ1W-MD232 24-VDC Input/Transistor Output Units, 16 inputs, 16 outputs CJ1W-MD233 24-VDC Input/Transistor Output Units, 16 inputs, 16 outputs Applicable Cable-side Connectors Connection Pins OMRON set DDK parts Pressure-welded XG4M-4030-T FRC5-A040-3T0S XG4M-2030-T FRC5-A020-3T0S 5-28 CJ2 CPU Unit Hardware User’s Manual...
  • Page 147 Precautions for Safe Use Double-check to make sure that the Output Unit's power supply leads have not been reversed. If the leads are reversed, the Unit's internal fuse will blow and the Unit will not operate. CJ2 CPU Unit Hardware User’s Manual 5-29...
  • Page 148 1 2 3 4 5 6 7 Connector lock screws 10 11 12 13 14 15 3 4 5 10 11 12 13 14 15 Tighten the connector lock screws to a torque of 0.2 N·m. 5-30 CJ2 CPU Unit Hardware User’s Manual...
  • Page 149: Connecting To Connector-Terminal Block Conversion Units Or I/O Relay Terminals

    Connecting to Connector-Terminal Block Conversion Units or I/O Relay Terminals OMRON Connecting Cable can be used to connect Basic I/O Units with Connectors to OMRON Con- nector-Terminal Block Conversion Units or to OMRON I/O Relay Terminals. For details, refer to A-1-4 Connecting Connector-Terminal Block Conversion Units and I/O Relay Terminals.
  • Page 150: Connecting I/O Devices

    Voltage output Output DC Input Unit Sensor Power Supply • The circuit below should NOT be used for I/O devices having a voltage output. Voltage output Sensor Power DC Input Unit Supply Output 5-32 CJ2 CPU Unit Hardware User’s Manual...
  • Page 151 Power W ≥ (V − V /R × 4 [allowable margin] : Power voltage : Sensor output residual current : PLC ON current : Sensor control current (load current) : PLC input impedance CJ2 CPU Unit Hardware User’s Manual 5-33...
  • Page 152 In this example, the sensor's power supply voltage is used as the input to CIO 000000 and a 100-ms timer delay (the time required for an OMRON Proximity Sensor to stabilize) is created in the pro- gram. After the Completion Flag for the timer turns ON, the sensor input on CIO 000001 will cause output bit CIO 000100 to turn ON.
  • Page 153 Method 1 CS/CJ-series Add a resistor that draws about 1/3 of the current consumed by the bulb. Method 2 CS/CJ-series Add a control resistor as shown in the following diagram. CJ2 CPU Unit Hardware User’s Manual 5-35...
  • Page 154: Wiring With Ethernet Cable

    5-3-6 Wiring with Ethernet Cable Precautions Observe the following precautions when using the CJ2 CPU Unit built-in EtherNet/IP port. Basic Installation Precautions • Take the greatest care when installing the Ethernet System, being sure to follow ISO 8802-3 spec- ifications. You must obtain a copy of these specifications and be sure you understand them before attempting to install an Ethernet System.
  • Page 155: Ethernet Connectors

    • Allow enough space for the bending radius of the twisted-pair cable as shown in below. 35 mm Lay the twisted-pair cable. Connect the cable to the switching hub. Be sure to press in the cable until it locks into place. CJ2 CPU Unit Hardware User’s Manual 5-37...
  • Page 156 Connect the twisted-pair cable to the connector on the built-in EtherNet/IP port at the CPU Unit. Be sure to press the connectors at both the switching hub end and Ethernet end until they lock into place. RJ45 Modular Connector Built-in EtherNet/IP port 5-38 CJ2 CPU Unit Hardware User’s Manual...
  • Page 157: Control Panel Installation

    • Do not install the PLC in a location exposed to direct sunlight. Natural Cooling Forced Ventilation (by Fan at Top of Panel) Air filter Forced Ventilation Method CJ2 CPU Unit Hardware User’s Manual 5-39...
  • Page 158 5°C inside the panel, by implementing measures such as installing a low-capacity space heater in the panel. Alternatively, leave the PLC power ON to keep the PLC warm. 5-40 CJ2 CPU Unit Hardware User’s Manual...
  • Page 159: Humidity

    • In locations exposed to corrosive gas, purge the air inside the panel to clear the gas and then pres- surize the inside of the panel to prevent gas from entering from outside. • In locations where flammable gas is present, either use an explosion-protected construction or do not use the PLC. CJ2 CPU Unit Hardware User’s Manual 5-41...
  • Page 160: Electrical Environment

    • The coils and contacts in electromagnetic contactors and relays in an external circuit are sources of noise. Locate them at least 100 mm away from the PLC. DC I/O AC I/O device device Terminal block Example of Arrangement in Panel 5-42 CJ2 CPU Unit Hardware User’s Manual...
  • Page 161 • If the signal lines and power lines cannot be routed in separate ducts, use shielded cable. Connect the shield to the ground terminal at the PLC, and leave it unconnected at the input device. CJ2 CPU Unit Hardware User’s Manual 5-43...
  • Page 162 Partition Signal Signal Signal cables cables (B) cables Power supply Signal cables cables Signal cables Signal cables Power supply cables Power supply cables Partitioning Methods for Signal and Power Supply Cables 5-44 CJ2 CPU Unit Hardware User’s Manual...
  • Page 163 For details on wiring optical fiber cables, refer to the following manuals. • SYSMAC H-PCF Optical Fiber Cables Installation Guide (Cat. No. W156) • Optical Ring Controller Link Units Operation Manual (Cat. No. W370) CJ2 CPU Unit Hardware User’s Manual 5-45...
  • Page 164: Grounding

    • Use a ground pole as close to the PLC as possible and keep the ground line as short as possible. Other Other Other device device device Ground of 100 Ω or less Common ground: Independent grounds: Common ground: Incorrect Best Acceptable Grounding Methods 5-46 CJ2 CPU Unit Hardware User’s Manual...
  • Page 165 Grounding for AC Power Supply Units When wiring to an AC Power Supply Unit, if one power supply phase of the equipment is grounded, always connect the grounded phase to the L2/N terminal. L2/N CJ2 CPU Unit Hardware User’s Manual 5-47...
  • Page 166 5 Installation 5-48 CJ2 CPU Unit Hardware User’s Manual...
  • Page 167: Troubleshooting

    Troubleshooting This section describes how to troubleshoot problems that may occur with a CJ2 PLC. 6-1 CPU Unit Errors ..........6-2 6-1-1 Errors and Remedies .
  • Page 168: Cpu Unit Errors

    RS-232C port. BKUP: Flashing yellow when data is being backed up from RAM to built-in flash memory. POWER: Lit when 5 V is output from the Power Supply Unit. Power Supply Unit Power indicator CJ2 CPU Unit Hardware User’s Manual...
  • Page 169: Checking Detailed Status

    If the error status could not be checked when the error occurred, it can be checked by reading error log data. The following information is stored in the error log. • Error code (This is the same error code as is stored in word A400.) • Error information • Time of occurrence CJ2 CPU Unit Hardware User’s Manual...
  • Page 170 For details on error codes and error information, refer to A-3 Fatal and Non-fatal Error Details. Directly Monitoring the Area where Error Log Information is Stored Connect the CX-Programmer online. Read words A100 to A199. Check the error status from the registered data. CJ2 CPU Unit Hardware User’s Manual...
  • Page 171: I/O Table Verification

    Double-click I/O Tables in the project tree in the main window. The I/O Table Window will be displayed. Select Verify from the Options Menu in the I/O Table Window. The I/O table verification results will be displayed. CJ2 CPU Unit Hardware User’s Manual...
  • Page 172: Types Of Errors

    *2 For details on fatal errors and non-fatal errors, refer to A-3 Fatal and Non-fatal Error Details. Note The indicator status shows the status of the errors that have occurred in RUN or MONITOR mode. CJ2 CPU Unit Hardware User’s Manual...
  • Page 173: Handling Errors

    *1 The following table shows the allowable power supply ranges for each Power Supply Unit model. Allowable power supply Model Power supply voltage voltage fluctuation CJ1W-PA205R/PA202 100 to 240 VAC 85 to 264 VAC CJ1W-PD025 24 VDC 19.2 to 28.8 VDC CJ2 CPU Unit Hardware User’s Manual...
  • Page 174 Turn ON the power or set the supply is OFF or there is turned ON. Check the termi- terminators. If the error is not no terminator for SYSMAC nator settings. cleared, replace the Unit. BUS. CJ2 CPU Unit Hardware User’s Manual...
  • Page 175: Cpu Reset

    6 Troubleshooting Additional Information The CJ2 CPU Units support a startup condition setting. To start the CPU Unit in RUN or MONI- TOR mode even if there is one or more Units that has not completed startup processing, select the Start running program when initializing Unit/Inner board recognition Check Box in the PLC Setup.
  • Page 176: Cpu Errors

    If power is then restored to the Expansion Rack, the CPU Unit will perform startup processing. The same operational status as existed before the power interrupt will not neces- sarily be continued. 6-10 CJ2 CPU Unit Hardware User’s Manual...
  • Page 177 A communications Perform a visual inspection Reconnect the cables. During operation, confirm cable is disconnected. and pull on the cables. that the connections are secure. Check for effects of vibration or shock. CJ2 CPU Unit Hardware User’s Manual 6-11...
  • Page 178 A405.15 809F Error Error Causes and Remedies Suspected cause of Prevention of recur- Confirmation method Remedy error rence The event load was too Reduce the event load. Same as at the left. high. 6-12 CJ2 CPU Unit Hardware User’s Manual...
  • Page 179 Check the I/O Connecting Cable connections between all Racks. Check the Unit installation. Restart the PLC. Is the error cleared? Replace the Unit or the Connecting Cable. Restart the PLC. Restart the System. CJ2 CPU Unit Hardware User’s Manual 6-13...
  • Page 180 • FG • Malfunctioning in bus will continue to occur. interface circuit • Power lines Check whether errors • I/O connecting cable become less frequent (inductive noise) after the Unit is replaced. 6-14 CJ2 CPU Unit Hardware User’s Manual...
  • Page 181 Restart the CPU Unit and Take measures against Same as at the left. check whether the error noise. (Investigate the • Data corruption in bus continues to occur. path of entry.) signals • FG • Power lines CJ2 CPU Unit Hardware User’s Manual 6-15...
  • Page 182 • Use the simple backup function to download data saved on a Memory Card. The CJ2 CPU Unit has built-in flash memory for backup. When the CPU Unit is restarted, data is transferred to memory for calculation and this sometimes enables an error to be cleared.
  • Page 183 None Software error *1 This refers to errors caused by data corruption. SRAM is used for the CPU Unit user memory. SRAM is affected by cosmic rays (neutrons), so data can become corrupted. CJ2 CPU Unit Hardware User’s Manual 6-17...
  • Page 184 Check whether 24 V is OFF. being supplied. Other errors specific to Refer to the manual for the Same as at the left. Same as at the left. Units particular Unit. 6-18 CJ2 CPU Unit Hardware User’s Manual...
  • Page 185 Check the connection at Reconnect the connector. Check for vibration and nected. the connector. shock. Battery voltage is low. Check whether the error is Replace the battery. Periodically replace the cleared by replacing the battery. battery. CJ2 CPU Unit Hardware User’s Manual 6-19...
  • Page 186 Turn the power OFF and back ON. Restart the PLC Is the error cleared? Check the Unit connections Replace the Unit where the error occurred. Restart the PLC. Restart the System. 6-20 CJ2 CPU Unit Hardware User’s Manual...
  • Page 187 Restart the Special I/O Unit. Reset, or turn the power OFF and back ON. Is the error cleared? Check the Unit connections. Replace the Special I/O Unit. Restart the Special I/O Unit. Restart the System. CJ2 CPU Unit Hardware User’s Manual 6-21...
  • Page 188 Take measures against Same as at the left. check whether the error noise. (Investigate the • Data corruption in bus occurs again after this. path of entry.) signals • FG • Power lines 6-22 CJ2 CPU Unit Hardware User’s Manual...
  • Page 189: Built-In Ethernet/Ip Port Errors And Remedies

    Precautions for Correct Use • For details on the types of errors related to the built-in EtherNet/IP port, and measures for han- dling them, refer to the CS/CJ Series EtherNet/IP Units Operation Manual (Cat. No. W465). CJ2 CPU Unit Hardware User’s Manual 6-23...
  • Page 190: Checking Error Status At The Ethernet/Ip Port Seven-Segment Display

    CPU Unit watchdog timer error Errors Related to the CPU Unit Indications Error 7-segment Flashing red CPU Unit Fatal Error Output OFF Error Errors Related to the Control Bits Indications Error 7-segment Multiple Switches ON 6-24 CJ2 CPU Unit Hardware User’s Manual...
  • Page 191 Flashing red Address mismatch Flashing red Not lit Communications Controller Error Flashing red Node Address Setting Changed During Operation Errors Related to Board Indicator Error 7-segment Lit red Not lit CPU Bus Unit Error CJ2 CPU Unit Hardware User’s Manual 6-25...
  • Page 192: Non-Cpu Unit Errors And Remedies

    • Install surge suppressor. • Install insulation transformer. • Install shielded cables between the Input Unit and the loads. Terminal block screws are loose. Tighten screws. Faulty terminal block connector Replace terminal block connec- contact. tor. 6-26 CJ2 CPU Unit Hardware User’s Manual...
  • Page 193 Output of a specific bit number Bit status controlled by multiple Correct program. does not turn OFF (indicator lit). instructions. Faulty output circuit. Replace Unit. CJ2 CPU Unit Hardware User’s Manual 6-27...
  • Page 194 0 to enable the CPU Unit (CPU Unit monitor- cyclic refreshing, or make sure ing error). that the Unit is refreshed from the program using IORF or FIORF at least once every 11 s. 6-28 CJ2 CPU Unit Hardware User’s Manual...
  • Page 195 CPU Unit. connected? Can the CX-Programmer be connected online? Is the CX-Programmer Set the CX-Programmer network network type set type to USB. to USB? Can the CX-Programmer be connected online? Replace the USB cable. CJ2 CPU Unit Hardware User’s Manual 6-29...
  • Page 196 CX-Programmer be connected online? Is the CX-Programmer Set the CX-Programmer network network type set to type to EtherNet/IP. EtherNet/IP? Can the CX-Programmer be connected online? Replace the Ethernet cable and the switching hub. 6-30 CJ2 CPU Unit Hardware User’s Manual...
  • Page 197 In the PLC Setup in the CPU Unit, in the CPU Unit, does the match the serial port setting with serial port setting match the the CX-Programmer network type CX-Programmer network type setting? setting. CJ2 CPU Unit Hardware User’s Manual 6-31...
  • Page 198 6 Troubleshooting 6-32 CJ2 CPU Unit Hardware User’s Manual...
  • Page 199: Inspection And Maintenance

    Inspection and Maintenance This section describes the inspection and maintenance that is required for CJ2 PLCs. 7-1 Inspections ........... 7-2 7-1-1 Inspection Points .
  • Page 200: Inspections

    Install cushioning or shock absorb- or shock. within specifications. ing equipment if necessary. Check for noise sources near No significant noise sources Either separate the PLC and noise the PLC. source or protect the PLC. CJ2 CPU Unit Hardware User’s Manual...
  • Page 201: Tools Required For Inspections

    Tools Required for Inspections Required Tools • Slotted and Phillips-head screwdrivers • Voltage tester or digital voltmeter • Industrial alcohol and clean cotton cloth Tools Required Occasionally • Oscilloscope • Thermometer and hygrometer (humidity meter) CJ2 CPU Unit Hardware User’s Manual...
  • Page 202: Unit Replacement Precautions

    The simple backup operation can be used to store the user program and all parameters for the CJ2 CPU Unit, DeviceNet Units, Serial Communications Units, and other specific Units in a Memory Card as backup files. A Memory Card and the simple backup operation can be used to easily restore data after replacing any of these Units.
  • Page 203: Replacing The Battery

    25°C. Memory Backup Time 5 yr 4.4 yr 4 yr 3 yr 2 yr 1.1 yr 1 yr Ambient temperature 25°C 40°C 55°C This graphic is for reference only. CJ2 CPU Unit Hardware User’s Manual...
  • Page 204: Replacement Procedure

    After replacing the battery, connect a Programming Device and clear the battery error. Turn OFF the power to the CPU Unit. If the CPU Unit has not been ON, turn it ON for at least five minutes and then turn it OFF. CJ2 CPU Unit Hardware User’s Manual...
  • Page 205 Leaving the CPU Unit unused again without turning ON the power even once after the battery is replaced may result in a shorter battery life. Additional Information The battery error will be cleared automatically the next time the CPU Unit is turned ON after replacing the Battery. CJ2 CPU Unit Hardware User’s Manual...
  • Page 206: Operation When Battery Is Exhausted Or Not Installed

    Bit turns ON, the outputs of all Output Units will turn OFF. To prevent the outputs of all Output Units from turning OFF at startup, take countermeasures such as writing the following program section into the ladder program. CJ2 CPU Unit Hardware User’s Manual...
  • Page 207 DM Area beginning with (Memory Card Required) D00000, or EM Area Transferred files: AUTOEXEC.OBJ, AUTOEXEC.STD, ATEXECDM.IOM, etc. PLC Setup: Do Not Detect Low Battery Other than the above. Operation is not possible without a Battery. CJ2 CPU Unit Hardware User’s Manual...
  • Page 208: Power Supply Unit Replacement Time

    CJ1W-PA205C Replacement notification display (7-segment, red) CJ1W-PA205C POWER POWER indicator (green) Alarm output (replacement TEST notification output) test switch ALARM OUTPUT DC30V, 50mA Alarm output (replacement NORMAL:ON notification output) ALARM OFF wiring diagram 7-10 CJ2 CPU Unit Hardware User’s Manual...
  • Page 209 Note The alarm output will also turn OFF under the following conditions. • The AC input to the Power Supply Unit is turned OFF. • An error is detected by the self-diagnostic function. • The TEST switch is pressed for at least 3 seconds. CJ2 CPU Unit Hardware User’s Manual 7-11...
  • Page 210 When 6 months or less are remaining until replacement is required, the display will alternate between “0.0” and “A02” (in 2 second intervals), and the alarm output will turn OFF. Remaining service life: 1 year to 6 months Remaining service life: 6 months max. Alarm output 7-12 CJ2 CPU Unit Hardware User’s Manual...
  • Page 211 Alarm output Approx. 70 ms 100 VAC: Approx. 2 s 200 VAC: Approx. 7 s *1 The values shown are reference values (calculated for a no-load status on the Power Supply Unit's output). CJ2 CPU Unit Hardware User’s Manual 7-13...
  • Page 212 “Hot,” and the notification output will remain OFF. In this state, the internal parts may deteriorate even if the PLC operation is normal, so replace the Power Supply Unit. 7-14 CJ2 CPU Unit Hardware User’s Manual...
  • Page 213 OUTPUT AC240V DC24V Terminal block Terminal block Alarm output terminals POWER indicator On replacement notification module On hood of Power Supply Unit Replacement notification Supported Not supported (7-segment display + transistor out- puts) CJ2 CPU Unit Hardware User’s Manual 7-15...
  • Page 214 7 Inspection and Maintenance 7-16 CJ2 CPU Unit Hardware User’s Manual...
  • Page 215: Backup Operations

    Data Backed Up Using Simple Backup ......8-12 CJ2 CPU Unit Hardware User’s Manual...
  • Page 216: Backing Up Data

    • Operation: DIP switch and Memory Card Power Switch • Backup destination: A Memory Card inserted in the CPU Unit Back up data by pressing the Memory Card Power Switch. All PLC data Memory Card Backup CJ2 CPU Unit Hardware User’s Manual...
  • Page 217: Using A Computer To Back Up Data

    I/O memory, forced status (backup and comparison only), and EM file memory data (backup only) Special I/O Units and CPU Parameter settings and data stored inside the Unit (e.g., programming created with Bus Units Support Software) CJ2 CPU Unit Hardware User’s Manual...
  • Page 218: Plc Backup Tool Operations

    • Select PLC Backup Tool from the CX-Programmer Tools Menu. − − − − • Select Programs OMRON CX-One CX Programmer PLC Backup Tool from the Windows Start Menu. The PLC Backup Tool Dialog Box will be displayed. CJ2 CPU Unit Hardware User’s Manual...
  • Page 219 File: Specify another backup file on the computer as the target. Backup files can be restored after the comparison results have been displayed. Also, the comparison results can be saved in a CSV file. CJ2 CPU Unit Hardware User’s Manual...
  • Page 220 CX-Programmer after restoring the data to force-set or force-reset bits as required. If required bits are not force-set or force-reset, differences in the forced status in memory may cause unexpected operation of the controlled system. CJ2 CPU Unit Hardware User’s Manual...
  • Page 221: Simple Backup

    OFF. startup.) Comparing data to Press the Memory Card Power The data can be compared the Memory Card Switch for three seconds. regardless of the CPU Unit operating mode. CJ2 CPU Unit Hardware User’s Manual...
  • Page 222: Operating Procedures

    CPU Unit when the PLC is turned ON even if pin 2 of the DIP switch is ON. 2 Data will not be read from the Memory Card to the CPU Unit if pin 1 of the DIP switch is ON (write-protect- ing program memory). CJ2 CPU Unit Hardware User’s Manual...
  • Page 223 Memory Card Note If an error occurs during writing or comparison, the MCPWR indicator will flash. Press the power switch to stop the flashing and to turn ON the MCPWR indicator. CJ2 CPU Unit Hardware User’s Manual...
  • Page 224: Verifying Backup Operations With Indicators

    • I/O bus error Power Switch is • Data was not read from the Unit to be backed up. pressed. MCPWR Flashes once. MCPWR Remains flashing. MCPWR Lit while writing. MCPWR OFF after data is written. 8-10 CJ2 CPU Unit Hardware User’s Manual...
  • Page 225 OFF. If the Memory Card will be used again, press the Memory Card Power Switch to supply power and execute the desired operation. *2 The backup files for Units and Boards are also compared. CJ2 CPU Unit Hardware User’s Manual 8-11...
  • Page 226: Related Auxiliary Bits/Words

    The files and applicable data transferred between the Memory Card and CPU Unit using the simple backup operation are listed below. The file name is fixed as BACKUP@@. Program Files Contents Backup Restore Compare File name Extension User program, network BACKUP .OBJ symbols 8-12 CJ2 CPU Unit Hardware User’s Manual...
  • Page 227 H000 to H511 Auxiliary Area A000 to A447, A10000 to A11135 A448 to A1472 Timer Completion T0000 to T4095 Flags and Timer (See note 3.) Counter Comple- C0000 to C4095 tion Flags and Counter PVs CJ2 CPU Unit Hardware User’s Manual 8-13...
  • Page 228 Unit address of Unit/Board (hex) Note The unit address is determined as follows: • Built-in EtherNet/IP (CJ2H-CPU@@-EIP) or CPU Bus Unit: Unit number + 10 hex • Special I/O Unit: Unit number + 20 hex 8-14 CJ2 CPU Unit Hardware User’s Manual...
  • Page 229 EM bank areas in the simple backup file will be restored, but forced status will not be restored. In addition, EM banks that are not in the simple backup file will retain their values from before the restoration. CJ2 CPU Unit Hardware User’s Manual 8-15...
  • Page 230 8 Backup Operations 8-16 CJ2 CPU Unit Hardware User’s Manual...
  • Page 231: Appendices

    Load Short-circuit Protection for CJ1W-OD204/OD212/OD232/MD232 . . . A-117 A-7 Relay Output Noise Reduction Methods ......A-119 CJ2 CPU Unit Hardware User’s Manual...
  • Page 232: Specifications Of Basic I/O Units

    A-37 *1 Although 16 I/O bits (1 word) are allocated, only 8 of these can be used for external I/O. This Unit is also treated as a 16-point I/O Unit in the I/O tables. CJ2 CPU Unit Hardware User’s Manual...
  • Page 233 • Terminal numbers A0 to A9 and B0 to B9 are used in this manual, but they are not printed on all Units. • A0 to A20 and B0 to B20 are printed on the Units. CJ2 CPU Unit Hardware User’s Manual...
  • Page 234: A-1-2 Basic I/O Units

    Input indicator Circuit Configuration 2.4 kΩ COM7 Input indicator Signal Signal Connec- name name tor pin Terminal Connections 12 to 24 VDC Polarity of the input power supply can be connected in either direction. CJ2 CPU Unit Hardware User’s Manual...
  • Page 235 0 ms due to internal element delays. *2 Terminal numbers A0 to A8 and B0 to B8 are used in this manual, but they are not printed on the Unit. CJ2 CPU Unit Hardware User’s Manual...
  • Page 236 Connect 26.4 VDC or row A 12 points/ COM0 common at 55°C COM0 10 points/ Circuit Configuration common at 55°C Input indicator (°) 5.6 kΩ Ambient Temperature IN15 Connect or row B COM1 COM1 CJ2 CPU Unit Hardware User’s Manual...
  • Page 237 1,000 VAC between the external terminals and the GR terminal for 1 minute at a Dielectric Strength leakage current of 10 mA max. Internal Current Con- 90 mA max. sumption Weight 70 g max. Accessories None CJ2 CPU Unit Hardware User’s Manual...
  • Page 238 20.4 to 26.4 VDC Range Input Impedance 5.6 kΩ Input Current 4.1 mA typical (at 24 VDC) ON Voltage/ON Current 19.0 VDC min./3 mA min. OFF Voltage/OFF Cur- 5 VDC max./1 mA max. rent CJ2 CPU Unit Hardware User’s Manual...
  • Page 239 (approx. 3 V). • Use a sensor with a minimum load current of 3 mA min. • Connect bleeder resistance if you connect a sensor with a minimum load current of 5 mA or higher. CJ2 CPU Unit Hardware User’s Manual...
  • Page 240 Input voltage: COM1 8 points/common circuit COM1 26.4 VDC at 55°C 5.6 kΩ 8 points/common Wd m+2 (total: 26 points max.) IN15 at 55°C COM2 (°) COM2 Ambient Temperature Wd m+3 IN15 COM3 COM3 A-10 CJ2 CPU Unit Hardware User’s Manual...
  • Page 241 20 MΩ between external terminals and the GR terminal (500 VDC) 2,000 VAC between the external terminals and the GR terminal for Dielectric Strength 1 minute at a leakage current of 10 mA max. Internal Current Consumption 80 mA max. CJ2 CPU Unit Hardware User’s Manual A-11...
  • Page 242 Note Although 16 I/O bits (1 word) are allocated, only 8 of these can be used for external I/O. This Unit is also treated as a 16-point I/O Unit in the I/O tables. A-12 CJ2 CPU Unit Hardware User’s Manual...
  • Page 243 *2 Use an input voltage of 90 VAC or higher when connecting 2-wire sensors. *3 Terminal numbers A0 to A8 and B0 to B8 are used in this manual, but they are not printed on the Unit. CJ2 CPU Unit Hardware User’s Manual A-13...
  • Page 244 Input voltage: 26.4 VDC 0.05 ms min. *1 With the CJ2JH-CPU6@-EIP CPU Units, the Unit must be mounted as one of the four Units immediately next to the CPU Unit. (°C) Ambient Temperature A-14 CJ2 CPU Unit Hardware User’s Manual...
  • Page 245 1,000 VAC between external terminals and GR terminal for 1 minute Dielectric Strength at a leakage current of 10 mA max. Internal Current Consumption 80 mA max. Weight 110 g max. Accessories None CJ2 CPU Unit Hardware User’s Manual A-15...
  • Page 246 • Inputs read by the internal circuits are cleared when inputs are refreshed. *1 Terminal numbers A0 to A8 and B0 to B8 are used in this manual, but they are not printed on the Unit. A-16 CJ2 CPU Unit Hardware User’s Manual...
  • Page 247 Note Although 16 I/O bits (1 word) are allocated, only 8 of these can be used for external I/O. This Unit is also treated as a 16-point I/O Unit in the I/O tables. CJ2 CPU Unit Hardware User’s Manual A-17...
  • Page 248 OUT15 2 A 250 VAC, 2 A 24 VDC max. *1 Terminal numbers A0 to A8 and B0 to B8 are used in this manual, but they are not printed on the Unit. A-18 CJ2 CPU Unit Hardware User’s Manual...
  • Page 249 Note Although 16 I/O bits (1 word) are allocated, only 8 of these can be used for external I/O. This Unit is also treated as a 16-point I/O Unit in the I/O tables. CJ2 CPU Unit Hardware User’s Manual A-19...
  • Page 250 Note Although 16 I/O bits (1 word) are allocated, only 8 of these can be used for external I/O. This Unit is also treated as a 16-point I/O Unit in the I/O tables. A-20 CJ2 CPU Unit Hardware User’s Manual...
  • Page 251 Note Although 16 I/O bits (1 word) are allocated, only 8 of these can be used for external I/O. This Unit is also treated as a 16-point I/O Unit in the I/O tables. CJ2 CPU Unit Hardware User’s Manual A-21...
  • Page 252 The load may operate incorrectly if the polarity is reversed. *1 Terminal numbers A0 to A8 and B0 to B8 are used in this manual, but they are not printed on the Unit. A-22 CJ2 CPU Unit Hardware User’s Manual...
  • Page 253 70 g max. Accessories None Signal Allocated name CIO word OUT0 Connect Wd m or row A OUT15 COM0 COM0 Output indicator Circuit Configuration OUT0 Wd m+1 Connect or row B OUT15 COM1 COM1 CJ2 CPU Unit Hardware User’s Manual A-23...
  • Page 254 • Be sure to wire both terminals B9 and B19 (COM1). • Be sure to wire both terminals A10 and A20 (+V). • Be sure to wire both terminals B10 and B20 (+V). A-24 CJ2 CPU Unit Hardware User’s Manual...
  • Page 255 External Power Supply 12 to 24 VDC, 30 mA min. Weight 70 g max. Allocated Signal name CIO word OUT0 Wd m OUT15 COM0 COM0 Output indicator Circuit Configuration OUT0 Wd m+1 OUT15 COM1 COM1 CJ2 CPU Unit Hardware User’s Manual A-25...
  • Page 256 • Be sure to wire both terminals 3 and 4 (COM1). • Be sure to wire both terminals 21 and 22 (+V). • Be sure to wire both terminals 1 and 2 (+V). A-26 CJ2 CPU Unit Hardware User’s Manual...
  • Page 257 Connect Word m+1 OUT15 or row B COM1 Circuit Configuration Output indicator COM1 OUT0 Connect Word m+2 or row A OUT15 COM2 COM2 OUT0 Word m+3 Connect OUT15 or row B COM3 COM3 CJ2 CPU Unit Hardware User’s Manual A-27...
  • Page 258 A20 (+V) of CN1. and A20 (+V) of CN2. • Be sure to wire both terminals B10 • Be sure to wire both terminals B10 and B20 (+V) of CN1. and B20 (+V) of CN2. A-28 CJ2 CPU Unit Hardware User’s Manual...
  • Page 259 Signal Allocated name CIO word OUT0 Word m OUT15 COM0 COM0 OUT0 Word m+1 OUT15 Circuit Configuration COM1 COM1 Output indicator OUT0 Word m+2 OUT15 COM2 COM2 OUT0 Word m+3 OUT15 COM3 COM3 CJ2 CPU Unit Hardware User’s Manual A-29...
  • Page 260 22 (+V) of CN1. and 22 (+V) of CN2. • Be sure to wire both terminals 1 • Be sure to wire both terminals 1 and 2 (+V) of CN1. and 2 (+V) of CN2. A-30 CJ2 CPU Unit Hardware User’s Manual...
  • Page 261 • The ERR indicator will light and the corresponding bit in A050 to A069 (Basic I/O Unit Information, two points per bit) will turn ON if an overcur- rent or line disconnection is detected. CJ2 CPU Unit Hardware User’s Manual A-31...
  • Page 262 Note Although 16 I/O bits (1 word) are allocated, only 8 of these can be used for external I/O. This Unit is also treated as a 16-point I/O Unit in the I/O tables. A-32 CJ2 CPU Unit Hardware User’s Manual...
  • Page 263 Note Although 16 I/O bits (1 word) are allocated, only 8 of these can be used for external I/O. This Unit is also treated as a 16-point I/O Unit in the I/O tables. CJ2 CPU Unit Hardware User’s Manual A-33...
  • Page 264 The load may operate incorrectly if the polarity is reversed. *1 Terminal numbers A0 to A8 and B0 to B8 are used in this manual, but they are not printed on the Unit. A-34 CJ2 CPU Unit Hardware User’s Manual...
  • Page 265 OFF. At the same time, the ERR indicator will light and the corre- sponding flag (one for each common) in the Basic I/O Unit Information Area (A050 to A069) will turn ON. CJ2 CPU Unit Hardware User’s Manual A-35...
  • Page 266 • Be sure to wire both terminals 1 and 2 (COM1 (+V)). • Be sure to wire both terminals 3 and 4 (0 V). • Be sure to wire both terminals 23 and 24 (0 V). A-36 CJ2 CPU Unit Hardware User’s Manual...
  • Page 267 I/O word m OUT15 CN1 (OUT) Output indicator COM1 COM1 Indicator switch OUT0 I/O word m+1 OUT15 Circuit Configuration COM2 COM2 OUT0 I/O word m+2 OUT15 CN2 (OUT) COM3 COM3 OUT0 I/O word m+3 OUT15 CJ2 CPU Unit Hardware User’s Manual A-37...
  • Page 268 24 (0 V) of CN2. • Be sure to wire both terminals 3 and 4 • Be sure to wire both terminals 3 and 4 (0 V) of CN1. (0 V) of CN2. A-38 CJ2 CPU Unit Hardware User’s Manual...
  • Page 269 Number of Simultaneously ON Points vs. Ambient Temperature Characteristic 16 points at 33°C 16 points at 45°C Input voltage: 24 VDC Input voltage: 26.4 VDC 12 points at 55°C 9 points at 55°C (°C) Ambient Temperature CJ2 CPU Unit Hardware User’s Manual A-39...
  • Page 270 *1 The ON response time will be 20 µs maximum and OFF response time will be 400 µs maximum even if the response times are set to 0 ms due to internal element delays. A-40 CJ2 CPU Unit Hardware User’s Manual...
  • Page 271 Number of Simultaneously ON Points vs. Ambient Temperature Characteristic 16 points at 33°C 16 points at 45°C Input voltage: 24 VDC Input voltage: 26.4 VDC 12 points at 55°C 9 points at 55°C (°C) Ambient Temperature CJ2 CPU Unit Hardware User’s Manual A-41...
  • Page 272 *1 The ON response time will be 20 µs maximum and OFF response time will be 400 µs maximum even if the response times are set to 0 ms due to internal element delays. A-42 CJ2 CPU Unit Hardware User’s Manual...
  • Page 273 Output Input indicator 8 points/ indicator Indicator common switch 5.6 kΩ at 55°C Word OUT0 Connect Word Connect IN15 or row B or row B OUT15 COM3 (°C) COM1 COM3 Ambient Temperature COM1 CJ2 CPU Unit Hardware User’s Manual A-43...
  • Page 274 (approx. 3 V). • Use a sensor with a minimum load current of 3 mA min. • Connect bleeder resistance if you connect a sensor with a minimum load current of 5 mA or higher. A-44 CJ2 CPU Unit Hardware User’s Manual...
  • Page 275 COM0 Indicator switch tion COM2 Output 8 points/ COM0 common indicator Indicator at 55°C Input indicator switch 5.6 kΩ OUT0 Word m+3 Word m+1 (°C) IN15 OUT15 Ambient Temperature COM1 COM3 COM1 COM3 CJ2 CPU Unit Hardware User’s Manual A-45...
  • Page 276 (approx. 3 V). • Use a sensor with a minimum load current of 3 mA min. • Connect bleeder resistance if you connect a sensor with a minimum load current of 5 mA or higher. A-46 CJ2 CPU Unit Hardware User’s Manual...
  • Page 277 Number of Simultaneously ON Points vs. Ambient Temperature Characteristic 16 points at 33°C 16 points at 45°C ERR indicator Input voltage: 24 VDC Input voltage: 26.4 VDC 12 points at 55°C 9 points at 55°C (°C) Ambient Temperature CJ2 CPU Unit Hardware User’s Manual A-47...
  • Page 278 *1 The ON response time will be 20 µs maximum and OFF response time will be 400 µs maximum even if the response times are set to 0 ms due to internal element delays. A-48 CJ2 CPU Unit Hardware User’s Manual...
  • Page 279 IN15 Word m OUT15 COM2 Indicator switch COM0 Circuit Configuration COM2 Output COM0 indicator Input indicator Indicator switch 1.1 kΩ 5.6 kΩ Word m+3 OUT0 Word m+1 IN15 OUT15 COM3 COM1 COM3 COM1 CJ2 CPU Unit Hardware User’s Manual A-49...
  • Page 280 *1 The ON response time will be 20 µs maximum and OFF response time will be 400 µs maximum even if the response times are set to 0 ms due to internal element delays. A-50 CJ2 CPU Unit Hardware User’s Manual...
  • Page 281: A-1-3 Precautions On Contact Output Units

    Arc killers are used with the Contact Output Unit in order to prolong the life of each Relay mounted to the Contact Output Unit, prevent noise, and reduce the generation of carbide and nitrate deposits. Arc killers can, however, reduce relay life if not used correctly. CJ2 CPU Unit Hardware User’s Manual A-51...
  • Page 282 DC inductive loads can be more difficult to switch than resistive loads. If appropriate arc killers are used, however, DC inductive loads will be as easy to switch as resistive loads. A-52 CJ2 CPU Unit Hardware User’s Manual...
  • Page 283: A-1-4 Connecting Connector-Terminal Block Conversion Units And I/O Relay Terminals

    Patterns for Combining Connector-Terminal Block Conversion Units and I/O Relay Terminals The following patterns can be used to connect Basic I/O Units with Connectors to OMRON Connector- Terminal Block Conversion Units and I/O Relay Terminals using OMRON Connecting Cables. Connection Patterns for Connector-Terminal Block Conversion Units...
  • Page 284 Connection Patterns for I/O Relay Terminals Pattern Configuration Connecting Cable I/O Relay Terminal I/O Relay Terminal I/O Relay Terminal Connecting Cable I/O Relay Terminal I/O Relay Terminal Connecting Cable Connecting Cable I/O Relay Terminal A-54 CJ2 CPU Unit Hardware User’s Manual...
  • Page 285 Appendices Combinations of Connections Combinations of OMRON Connecting Cables with Connector-Terminal Block Conversion Units and I/O Relay Terminals are shown below. Connections to Connector-Terminal Block Conversion Units Refer to the pages given in the right columns for connection diagrams and details on the Connector-Ter- minal Block Conversion Units and Connecting Cables.
  • Page 286 None XW2Z-@@@B XW2B-40G4 None None XW2Z-@@@BU XW2D-40C6 None A-70 XW2Z-@@@L XW2D-20G6 (2 Units) None XW2Z-@@@L XW2B-20G5 (2 Units) None XW2Z-@@@L XW2B-20G4 (2 Units) None XW2Z-@@@L XW2C-20G6-IO16 (2 Units) A-70 XW2Z-@@@L XW2F-20G7-OUT16 (2 Units) A-56 CJ2 CPU Unit Hardware User’s Manual...
  • Page 287 None XW2Z-@@@K XW2B-40G5 None None XW2Z-@@@K XW2B-40G4 None XW2Z-@@@N XW2D-20G6 (2 Units) None XW2Z-@@@N XW2B-20G5 (2 Units) None XW2Z-@@@N XW2B-20G4 (2 Units) None XW2Z-@@@N XW2C-20G6-IO16 (2 Units) A-72 XW2Z-@@@N XW2F-20G7-OUT16 (2 Units) CJ2 CPU Unit Hardware User’s Manual A-57...
  • Page 288 None None XW2Z-@@@B XW2B-40G4 None None XW2Z-@@@BU XW2D-40C6 None XW2Z-@@@L XW2D-20G6 (2 Units) None XW2Z-@@@L XW2B-20G5 (2 Units) None XW2Z-@@@L XW2B-20G4 (2 Units) None XW2Z-@@@L XW2C-20G6-IO16 (2 Units) A-77 XW2Z-@@@L XW2F-20G7-OUT16 (2 Units) A-58 CJ2 CPU Unit Hardware User’s Manual...
  • Page 289 *2 The inputs are NPN. For PNP inputs, reverse the polarity of the external power supply connections to the power supply terminals on the Connector-Terminal Block Conversion Unit. *3 Bleeder resistance (5.6 kΩ) is built in. CJ2 CPU Unit Hardware User’s Manual A-59...
  • Page 290 G70D-VSOC16 A-82 G79-O@C-@ G70D-VFOM16 G79-O@C-@ G70A-ZOC16-3 and Relay A-85 G79-O@C-@ G70R-SOC08 A-84 G79-O@C-@ G70D-SOC08 A-83 CJ1W-OD262 64 outputs 2 MIL con- G79-I@-@-D1 G7TC-OC16-1 A-85 nectors G79-O@-@-D1 G70D-SOC16-1 G79-O@-@-D1 G70D-FOM16-1 G79-O@-@-D1 G70A-ZOC16-4 and Relay A-60 CJ2 CPU Unit Hardware User’s Manual...
  • Page 291 CJ1W-OD263 64 outputs 2 MIL con- G79-O@-@-D1 G7TC-OC16 A-84 nectors G79-O@-@-D1 G7TC-OC08 G79-O@-@-D1 G70D-SOC16 A-83 G79-O@-@-D1 G70D-FOM16 G79-O@-@-D1 G70D-VSOC16 A-82 G79-O@-@-D1 G70D-VFOM16 G79-O@-@-D1 G70A-ZOC16-3 and Relay A-85 G79-O@-@-D1 G70R-SOC08 A-84 G79-O@-@-D1 G70D-SOC08 A-83 CJ2 CPU Unit Hardware User’s Manual A-61...
  • Page 292 A-82 G79-O@-@-D1 G70D-VFOM16 G79-O@-@-D1 G70A-ZOC16-3 and Relay A-85 G79-O@-@-D1 G70R-SOC08 A-84 G79-O@-@-D1 G70D-SOC08 A-83 *1 For Units with both inputs and outputs, refer to the connection patterns for both input and output connections. A-62 CJ2 CPU Unit Hardware User’s Manual...
  • Page 293 PLC, but they PNP. must all be wired. (Use the enclosed short bar.) 2 The COM terminals are wired inside the Connec- tor-Terminal Block Conversion Unit. CJ2 CPU Unit Hardware User’s Manual A-63...
  • Page 294 2 Both COM0 and COM1 have two pins each. They 2 The COM terminals are wired inside the Connec- are internally connected inside the PLC, but they tor-Terminal Block Conversion Unit. must all be wired. A-64 CJ2 CPU Unit Hardware User’s Manual...
  • Page 295 2 COM0, COM1, COM2, and COM3 have two pins (Use the enclosed short bar.) each. They are internally connected inside the 2 The COM terminals are wired inside the Connec- PLC, but they must all be wired. tor-Terminal Block Conversion Unit. CJ2 CPU Unit Hardware User’s Manual A-65...
  • Page 296 2 COM0, COM1, COM2, and COM3 have two pins 2 The COM terminals are wired inside the Connec- each. They are internally connected inside the tor-Terminal Block Conversion Unit. PLC, but they must all be wired. A-66 CJ2 CPU Unit Hardware User’s Manual...
  • Page 297 Note 1 Connect the A9/B9 terminal and the terminal. Connect the A10/B10 terminal and the terminal. (Use the enclosed short bar.) 2 The COM terminals are wired inside the Connec- tor-Terminal Block Conversion Unit. CJ2 CPU Unit Hardware User’s Manual A-67...
  • Page 298 PLC, but they must all be Connect the A10/B10 terminal and the terminal. wired. (Use the enclosed short bar.) 2 The COM terminals are wired inside the Connec- tor-Terminal Block Conversion Unit. A-68 CJ2 CPU Unit Hardware User’s Manual...
  • Page 299 PLC, but they must all be wired. Connect the A10/B10 terminal and the terminal. (Use the enclosed short bar.) 2 The COM terminals are wired inside the Connec- tor-Terminal Block Conversion Unit. CJ2 CPU Unit Hardware User’s Manual A-69...
  • Page 300 Connect the A10/B10 terminal and the terminal. connected inside the PLC, but they must all be wired. (Use the enclosed short bar.) 2 The COM terminals are wired inside the Connec- tor-Terminal Block Conversion Unit. A-70 CJ2 CPU Unit Hardware User’s Manual...
  • Page 301 PLC, but they must all be Connect the A10/B10 terminal and the terminal. wired. (Use the enclosed short bar.) 2 The COM terminals are wired inside the Connec- tor-Terminal Block Conversion Unit. CJ2 CPU Unit Hardware User’s Manual A-71...
  • Page 302 PLC, but they must all be wired. Connect the A10/B10 terminal and the terminal. (Use the enclosed short bar.) 2 The COM terminals are wired inside the Connec- tor-Terminal Block Conversion Unit. A-72 CJ2 CPU Unit Hardware User’s Manual...
  • Page 303: Inputs And Outputs

    Note 1 The polarity for input power supply connections indicated with dotted lines ( ) can be con- nected in either direction. 2 The COM terminals are internally connected inside the PLC, but they must all be wired. CJ2 CPU Unit Hardware User’s Manual A-73...
  • Page 304 (Use the enclosed short bar.) (Use the enclosed short bar.) 2 The COM terminals are wired inside the 2 The COM terminals are wired inside the Connector-Terminal Block Conversion Connector-Terminal Block Conversion Unit. Unit. A-74 CJ2 CPU Unit Hardware User’s Manual...
  • Page 305 2 The COM terminals and +V terminals are inter- 2 The COM terminals and 0V terminal are internally nally connected inside the PLC, but they must all connected inside the PLC, but they must all be be wired. wired. CJ2 CPU Unit Hardware User’s Manual A-75...
  • Page 306 A and 2 Both COM2 and COM3 have two pins each. They are internally connected inside the PLC, but they must all be wired. A-76 CJ2 CPU Unit Hardware User’s Manual...
  • Page 307 (Use the enclosed short bar.) (Use the enclosed short bar.) 2 The COM terminals are wired inside the 2 The COM terminals are wired inside the Connector-Terminal Block Conversion Connector-Terminal Block Conversion Unit. Unit. CJ2 CPU Unit Hardware User’s Manual A-77...
  • Page 308 ) can be connected in either direction. 2 Both COM2 and COM3 have two pins each. They are internally connected inside the PLC, but they must all be wired. A-78 CJ2 CPU Unit Hardware User’s Manual...
  • Page 309 (Use the enclosed short bar.) (Use the enclosed short bar.) 2 The COM terminals are wired inside the 2 The COM terminals are wired inside the Connector-Terminal Block Conversion Connector-Terminal Block Conversion Unit. Unit. CJ2 CPU Unit Hardware User’s Manual A-79...
  • Page 310 PLC, but they must all but they must all be wired. be wired. 2 The power supply voltage for the CJ1W- 2 The power supply voltage for the CJ1W- MD563 is 5 V. MD563 is 5 V. A-80 CJ2 CPU Unit Hardware User’s Manual...
  • Page 311 I/O Relay Terminal. the I/O Relay Terminal. 2 Use the G78-04 short bar to short to the common ter- 2 Use the G78-04 short bar to short to the common termi- minal. nal. CJ2 CPU Unit Hardware User’s Manual A-81...
  • Page 312 Unit and the output numbers for the I/O Relay Termi- nal. nal. 2 Use the G6D-4-SB short bar to short to the common 2 Use the G6D-4-SB short bar to short to the common terminal. terminal. A-82 CJ2 CPU Unit Hardware User’s Manual...
  • Page 313 PLC Output Unit and the output Unit and the output numbers for the I/O Relay Termi- numbers for the I/O Relay Terminal. nal. 2 Use the G6D-4-SB short bar to short to the common terminal. CJ2 CPU Unit Hardware User’s Manual A-83...
  • Page 314 2 The G7TC-OC08 has only 8 outputs and therefore mon terminal. does not have 8 to 15 and C8 to C15. 3 Use the G78-04 short bar to short to the common terminal. A-84 CJ2 CPU Unit Hardware User’s Manual...
  • Page 315 “00” to “15” are the output bit numbers for the PLC Output Unit and the output numbers for the I/O 2 Use the G78-04 short bar to short to the common Relay Terminal. terminal. CJ2 CPU Unit Hardware User’s Manual A-85...
  • Page 316: Dimensions

    Appendices Dimensions A-2-1 CJ2H CPU Units 66.2 79.8 74.5 A-2-2 Power Supply Units CJ1W-PA205R PA205R POWER AC100-240V INPUT L2/N OUTPUT AC240V DC24V 81.6 A-86 CJ2 CPU Unit Hardware User’s Manual...
  • Page 317 Appendices CJ1W-PA205C CJ1W-PA205C POWER AC100-240V INPUT Years TEST L2/N ALARM OUTPUT DC30V,50mA NORMAL:ON ALARM :OFF 81.6 CJ1W-PA202 PA202 POWER AC100 -240V INPUT L2/N 81.6 CJ2 CPU Unit Hardware User’s Manual A-87...
  • Page 318 Appendices CJ1W-PD025 PD025 POWER DC24V+ INPUT 81.6 CJ1W-PD022 PD022 POWER 81.6 A-88 CJ2 CPU Unit Hardware User’s Manual...
  • Page 319: A-2-3 Basic I/O Units

    4 5 6 7 8 9 10 11 12 13 14 15 Units with MIL Connector (40-pin x 1) 83.6 ID231 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 CJ2 CPU Unit Hardware User’s Manual A-89...
  • Page 320 Appendices 32-point Units (24-VDC Input/Transistor Output Units) Units with Fujitsu-compatible Connector (24-pin x 2) (112.5) 66.5 Units with MIL Connector (20-pin x 2) 83.6 A-90 CJ2 CPU Unit Hardware User’s Manual...
  • Page 321 Appendices 64-point Units (Input Units, Output Units, 24-VDC Input/Transistor Output Units, TTL I/O Units) Units with Fujitsu-compatible Connector (40-pin x 2) (112.5) 66.5 Units with MIL Connector (40-pin x 2) 83.6 CJ2 CPU Unit Hardware User’s Manual A-91...
  • Page 322: A-2-4 I/O Control Unit And I/O Interface Unit

    Appendices A-2-4 I/O Control Unit and I/O Interface Unit CJ1W-IC101 CJ1W-II101 I/O Control Unit I/O Interface Unit (140) (140) IC101 IC101 II101 69.3 69.3 A-2-5 I/O Memory Card 42.8 36.4 A-92 CJ2 CPU Unit Hardware User’s Manual...
  • Page 323: Fatal And Non-Fatal Error Details

    Indirect BCD error Version Error (0x80F2) Illegal access error Card Transfer Error (0x80F4) No END error System Failure (FALS) Error (0xC101 to 0xC2FF) Task error Differentiation overflow error Illegal instruction error UM overflow error CJ2 CPU Unit Hardware User’s Manual A-93...
  • Page 324 Units that are con- Units. nected does not agree with the num- • With the CJ2 CPU Unit, if the I/O verification oper- ber in the registered I/O table. ation is performed when the number of Units is incorrect, mismatch errors will be detected for all Units registered in the I/O tables.
  • Page 325 A409.00 to A409.03 and change the setting to a responding bit in A409.00 to A409.03 valid word address below CIO 0900 with a Program- (Racks 0 to 3) will be turned ON. ming Device (such as a CX-Programmer). CJ2 CPU Unit Hardware User’s Manual A-95...
  • Page 326 PLC Setup has been set to stop operation for an instruction error. A295.14: Illegal instruction error Retransfer the program to the CPU Unit. The program contains an instruction that cannot be executed. A-96 CJ2 CPU Unit Hardware User’s Manual...
  • Page 327 *4 Regardless of the error that occurred, the three bits in parentheses will be stored in A407.13 to A407.15. The value will simultaneously be stored in A407.00 to A407.12. *5 Bits A410.00 to A410.15 correspond to unit numbers 0 to F. *6 Bits A411.00 to A416.15 correspond to unit numbers 0 to 95. CJ2 CPU Unit Hardware User’s Manual A-97...
  • Page 328: A-3-2 Non-Fatal Errors

    CPU Bus Unit Error (0x0200 to 0x020F) Special IO Unit Error (0x0300 to 0x035F or 0x03FF) CPU Bus Unit Setup Error (0x0400 to 0x040F) Special IO Unit Setup Error (0x0500 to 0x055F) System Alarm (FAL) Error (0x4104 to 0x42FF) A-98 CJ2 CPU Unit Hardware User’s Manual...
  • Page 329 An installed Special I/O Unit does not match the Setup Error 0x055F cial I/O Unit Special I/O Unit Special I/O Unit registered in the I/O tables. Setting Error Setting Error, Flag Unit Number Flags CJ2 CPU Unit Hardware User’s Manual A-99...
  • Page 330 The leftmost digit of the code will be 4 and the rightmost 3 digits of the code will be from 101 to 2FF hex and will corre- spond to FAL numbers 001 to 511. A-100 CJ2 CPU Unit Hardware User’s Manual...
  • Page 331: Connecting To The Rs-232C Serial Port On The Cpu Unit

    *1 Baud rates for the RS-232C are specified only up to 19.2 kbps. The CJ Series supports serial communications from 38.4 kbps to 115.2 kbps, but some computers cannot support these speeds. Lower the baud rate if nec- essary. CJ2 CPU Unit Hardware User’s Manual A-101...
  • Page 332: A-4-2 Connection Examples

    (male) connector (female) Connection Example for the Peripheral Bus (Toolbus) Serial Communications Mode Computer CPU Unit Signal Signal name name RS-232C RS-232C interface interface D-sub, 9-pin D-sub, 9-pin connector (male) connector (female) A-102 CJ2 CPU Unit Hardware User’s Manual...
  • Page 333 The 5-V wires can also be twisted with the SG wire to increase noise immunity. Although this wiring is different from that shown in the example above, it can be used to increase noise immunity if required. CJ2 CPU Unit Hardware User’s Manual A-103...
  • Page 334 5 OFF/6 ON: Send when RS-232C's CS is high. 5 ON/6 OFF: Send when RS-232C's CS is low. Connection Example to Programmable Terminal (PT) Direct Connection from RS-232C to RS-232C RS-232C port RS-232C Host Link or NT Link (1:N) A-104 CJ2 CPU Unit Hardware User’s Manual...
  • Page 335: A-4-3 Applicable Connectors And Recommended Cables

    We recommend using the following shielded twisted-pair cables to provide noise resistance. Fujikura Ltd.:UL2464 AWG28 × 5P IFS-RVV-SB (UL product) AWG 28 × 5P IFVV-SB (non-UL product) Hitachi Cable, Ltd.:UL2464-SB(MA) 5P × 28AWG (7/0.127) (UL product) CO-MA-VV-SB 5P × 28AWG (7/0.127) (non-UL product) CJ2 CPU Unit Hardware User’s Manual A-105...
  • Page 336: A-4-4 Example Of Recommended Rs-232C Wiring

    Precautions for Correct Use Precautions for Correct Use Use the special cables provided from OMRON for all connections whenever possible. If cables are produced in-house, be sure they are wired correctly. External devices and the CPU Unit may be damaged if general purpose (e.g., computer to modem) cables are used or if wiring is not cor- rect.
  • Page 337: A-4-5 Wiring Connectors

    Cut the cable to the required length, leaving leeway for wiring and laying the cables. Use a razor blade to cut away the sheath, being careful not to damage the braiding. 40 mm (RS-232C) Use scissors to cut away the exposed braiding. 10 mm CJ2 CPU Unit Hardware User’s Manual A-107...
  • Page 338 Move the heat-shrinking tubes onto the soldered area and shrink them into place. Heat-shrinking tube Assembling the Hood Assemble the connector hood as shown. FG Connection No FG Connection Aluminum foil tape Ground plate A-108 CJ2 CPU Unit Hardware User’s Manual...
  • Page 339 Appendices Connections to the CPU Unit • Always turn OFF the power supply to the PLC before connecting or disconnecting communica- tions cables. • Tighten the communications connector attachment screws to 0.4 N·m. CJ2 CPU Unit Hardware User’s Manual A-109...
  • Page 340: Installing The Usb Driver

    CJ2 CPU Unit for the first time. This example assumes that the Support Software is already installed. Windows XP Turn ON the power supply to the CJ2 PLC, and connect a USB cable between the USB port on the computer and the peripheral (USB) port on the CJ2 CPU Unit.
  • Page 341 Button. Windows 2000 Turn ON the power supply to the CJ2 PLC, and connect a USB cable between the USB port on the computer and the peripheral (USB) port on the CJ2 CPU Unit. After the cable has been connected, the computer will automatically recognize the device and the following message will be displayed.
  • Page 342 The following window will be displayed. From the list in the window, select the Specify location Check Box and then click the Next Button. Click the Browse Button, specify C:\Program Files\OMRON\CX-Server\USB\win2000_XP\Inf, and then click the Next Button. (“C:\” indicates the installation drive and may be different on your computer.)
  • Page 343 After the driver has been successfully installed, the following window will be displayed. Click the Finish Button. Checking after Installation Display the Device Manager at the computer. Click USB (Universal Serial Bus) Controller, and confirm that OMRON SYSMAC PLC Device is displayed. CJ2 CPU Unit Hardware User’s Manual A-113...
  • Page 344 Reinstalling the USB Driver Right-click USB Device and select Delete from the pop-up menu to delete the driver. Reconnect the USB cable. The USB Driver Installation Window will be displayed. Reinstall the USB driver. A-114 CJ2 CPU Unit Hardware User’s Manual...
  • Page 345: Load Short-Circuit Protection And Line Disconnection Detection For Basic I/O Units

    A: Load not connected or load line broken. B: Current to load at or below line disconnection detection current. C: Rise of current to load too slow and error detected before the disconnection detection current was reached. CJ2 CPU Unit Hardware User’s Manual A-115...
  • Page 346 To prevent the alarm output bit from turning ON momentarily when the load turns ON, the alarm out- put is not turned ON for 200 ms after the input (CIO 1.00) turns ON. 1.00 A50.00 0000 #0002 TIM0 W0.01 W0.00 W0.00 1.00 W0.00 0.00 A-116 CJ2 CPU Unit Hardware User’s Manual...
  • Page 347: A-6-2 Load Short-Circuit Protection For Cj1W-Od204/Od212/Od232/Md232

    ON/OFF operations will be repeated in the output. Leaving short-circuits for any length of time will cause internal temperature rise, deterioration of elements, discoloration of the case or PCBs, etc. Therefore, observe the following restrictions. CJ2 CPU Unit Hardware User’s Manual A-117...
  • Page 348 A50.00 turns ON and how to keep the output bits OFF until the cause is removed and the bit is reset using work bit W0.01. W0.01 A50.00 W0.00 W0.00 W0.00 0.00 W0.00 0.01 W0.00 0.07 A-118 CJ2 CPU Unit Hardware User’s Manual...
  • Page 349: Relay Output Noise Reduction Methods

    The dielectric strength of the capacitor must be 200 to 300 V. If the circuit is an AC circuit, use a capacitor with no polarity. CJ2 CPU Unit Hardware User’s Manual A-119...
  • Page 350 When switching a load with a high inrush current such as an incandescent lamp, suppress the inrush current as shown below. Countermeasure 1 Countermeasure 2 Providing a dark current of Providing a limiting resistor approx. one-third of the rated value through an incandescent lamp A-120 CJ2 CPU Unit Hardware User’s Manual...
  • Page 351: Revision History

    Cat. No. W472-E1-01 Revision code The following table outlines the changes made to the manual during each revision. Page numbers refer to the previous version. Revision code Date Revised content July 2008 Original production CJ2 CPU Unit Hardware User’s Manual Revision-1...
  • Page 353 Alexandra Technopark, Singapore 119967 Tel: (65) 6835-3011/Fax: (65) 6835-2711 Regional Headquarters OMRON (CHINA) CO., LTD. © OMRON Corporation 2008 All Rights Reserved. OMRON EUROPE B.V. Room 2211, Bank of China Tower, In the interest of product improvement, Wegalaan 67-69-2132 JD Hoofddorp 200 Yin Cheng Zhong Road, specifications are subject to change without notice.

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