Omron SYSMAC CVM1 Series Operation Manual
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Omron SYSMAC CVM1 Series Operation Manual

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Cat. No. W434-E1-01
This manual is PDF file only.
SYSMAC CVM1/CV Series
CVM1-LK401
PC Link Unit

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  • Page 1 Cat. No. W434-E1-01 This manual is PDF file only. SYSMAC CVM1/CV Series CVM1-LK401 PC Link Unit...
  • Page 2 CVM1-LK401 PC Link Unit Operation Manual Produced July 2004...
  • Page 4 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 6: Table Of Contents

    TABLE OF CONTENTS PRECAUTIONS ........Intended Audience ............General Precautions .
  • Page 7 TABLE OF CONTENTS Appendices Standard Models ............Link Adapter Specifications .
  • Page 8 About this Manual: This manual describes the installation and operation of the CVM1-LK401 PC Link Unit and includes the sections described below. This manual also describes the procedures for replacing PC Link Sys- tems for C500, C1000H, and C2000H PLCs using the CVM1-LK401 PC Link Unit, including differ- ences in memory allocations.
  • Page 9 Related Manuals: Refer to the CVM1/CV Series Installation Guide (W195) for information on installing CVM1/CV-series PLCs. Refer to the CVM1/CV Series Operation Manual: Ladder Diagrams (W202) for information on programming ladder diagrams. Refer to the C200H-LK401/C500-LK009-V1 PC Link System Manual (W135) for information on handling and wiring the C200H-LK401 and C500-LK009-V1 PC Links.

  • Page 10: Precautions

    PRECAUTIONS This section provides general precautions for using the CVM1-LK401 PC Link Unit. The information contained in this section is important for the safe and reliable application of the CVM1-LK401 PC Link Unit and the Programmable Controller in general. You must read this section and understand the information contained before attempting to set up or operate a PC Link System.

  • Page 11: Intended Audience

    It is extremely important that a PLC and all PLC Units be used for the speci- fied purpose and under the specified conditions, especially in applications that can directly or indirectly affect human life. You must consult with your OMRON representative before applying a PLC System to the above-mentioned appli-...

  • Page 12: Safety Precautions

    Safety Precautions Safety Precautions !WARNING Do not touch any of the terminals or terminal blocks while the power is being supplied. Doing so may result in electric shock. !WARNING Do not attempt to disassemble, repair, or modify any Units. Any attempt to do so may result in malfunction, fire, or electric shock.

  • Page 13: Operating Environment Precautions

    Operating Environment Precautions Operating Environment Precautions !Caution Do not operate the control system in the following locations: • Locations subject to direct sunlight. • Locations subject to temperatures or humidity outside the range specified in the specifications. • Locations subject to condensation as the result of severe changes in tem- perature.
  • Page 14 Application Precautions !Caution Failure to abide by the following precautions could lead to faulty operation of the PLC or the system, or could damage the PLC or PLC Units. Always heed these precautions. • Do not mount more than the maximum number of PC Link Units specified in this manual to one PLC.

  • Page 15: Conformance To Ec Directives

    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).

  • Page 16: Introduction

    SECTION 1 Introduction This section describes the capabilities of the PC Link System and provides example system configurations. Features of the PC Link System ........System Configuration .

  • Page 17: Features Of The Pc Link System

    Features of the PC Link System Section 1-1 Features of the PC Link System A PC Link System is a communications system that exchanges I/O data between PLCs independent of programming in the ladder program. The CVM1-LK401 is the PC Link Unit for SYSMAC CVM1/CV-series PLCs. Exchange Data between Extra programming is not required to communicate through the PC Link Sys- PLCs without...
  • Page 18 Section 1-1 Features of the PC Link System Up to 32 Link Units in a PC Link Units connected in a single operating level can exchange data Single-level System between a minimum of 2 and maximum of 32 PLCs. The size of the LR Area is fixed at 64 words (1,024 points), so allocating more Link Relay bits to each Unit will reduce the number of Units that can be connected in the PC Link.

  • Page 19: System Configuration

    System Configuration Section 1-2 System Configuration The following restrictions apply to PC Link Systems with CVM1-LK401 PC Link Units. 1. The CVM1-LK401 can communicate with C200H-LK401 Units as well as C500-LK009-V1 Units in single-level LK009 mode or in a multi-level sys- tem.
  • Page 20 Section 1-2 System Configuration • The following example shows the structure of a single-level system set to transfer 256 LR bits/PLC in 4 PLCs. Link Adapter Link Adapter PC Link PC Link PC Link PC Link Node 0 Node 1 Node 2 Node 3 C200H...
  • Page 21 Section 1-2 System Configuration Setting the Link Number In a multi-level system, the LR Area is divided into two parts (link #0 and link #1), so there are 512 Link Relay bits (32 words) available for each operating level. For example, when the first level is #0 and the second level is #1, the third level would be #0 and the LR Areas used by each level will not overlap.
  • Page 22 System Configuration Section 1-2 Example Data Transfers in Settings: a Multi-level System 32 Link Relay bits in Level 1 (multi-level link #0) Level 1’s LR Area is divided among 16 Units. 32 Link Relay bits in Level 2 (multi-level link #1) Level 2’s LR Area is divided among 8 Units.

  • Page 23: Using Optical Fiber Cable

    Section 1-3 Using Optical Fiber Cable Using Optical Fiber Cable Use optical fiber cable in environments with noise sources or environments where there is a high ground impedance difference in the PC Link. Use Link Adapters that transmit data through optical fiber cable. PC Link Unit PC Link Unit PC Link Unit...

  • Page 24: Specifications And Component Functions

    SECTION 2 Specifications and Component Functions This section provides specifications of the PC Link Unit and describes the main components. Specifications ..........Installing PC Link Units .

  • Page 25: Specifications

    Section 2-1 Specifications Specifications General The general specifications conform to the CVM1/CV Series specifications. Specifications Characteristics Item Specification Communication method Two-wire half-duplex method (with electrical cable only) or four-wire half-duplex method (with electrical cable and opti- cal fiber cable) Synchronization HDLC Transmission speed 128 kbps...
  • Page 26 Specifications Section 2-1 PC Link Connector Pin Arrangement PC Link connector Pin number Signal name (Abbreviation) Not used. Not used. Not used. Not used. Transfer data B (DB) PC LINK Not used. Frame ground (FG) Not used. Transfer date A (DA) Hood bracket Frame ground (FG) Connecting cable and connectors are required to connect PC Link Units...

  • Page 27: Installing Pc Link Units

    Installing PC Link Units Section 2-2 Using Electrical Cables When using optical fiber cable, a 3G2A9-AL004-(P)E Link Adapter is required and Optical Fiber Cables at each PC Link Unit and a 3G2A9-AL002-(P)E Link Adapter is required at (Four-wire Half-duplex each branch. Method) Set the Transmission Line Selector Switch to the left to select four-wire com- munications.
  • Page 28 Section 2-2 Installing PC Link Units CVM1/CV Series CVM1/CV Series CVM1/CV Series 1) CPU Rack 1) CPU Rack 1) CPU Rack Can be mounted. Can be mounted. Can be mounted. Cannot be mounted in 2) Expansion Expansion CPU Rack I/O Rack. Can be mounted.

  • Page 29: Component Names And Functions

    Component Names and Functions Section 2-3 Component Names and Functions Component Names LK401 LED Indicators THIS LINK 0 OTHER Unit Number Setting Switches Node Address Setting Switches P Switch (SW1) ransmission Line Selector Switch erminating Resistance Setting Switch PC Link Connector (Connects to another PC Link Unit or Link Adapter.) LED Indicators...
  • Page 30 Section 2-3 Component Names and Functions A node address setting error will not occur if the same node address is set on two PC Link Units. Be sure to set a unique address on each Unit. Unit Number Setting Switches (UNIT No.) Setting range UNIT 00 to 15...
  • Page 31 Section 2-3 Component Names and Functions Level/Link Setting • When configuring a single-level PC Link system, set pin 3 to ON. The set- ting of pin 4 is disabled when pin 3 is ON, but set pin 4 to ON as well. •...

  • Page 32: Cable Length And Terminating Resistance Settings

    Cable Length and Terminating Resistance Settings Section 2-4 Transmission Line and Terminating WIRE Resistance Switches 4 ↔ 2 Transmission Line Selector Switch (WIRE and TER) ON ↔ OFF Terminating Resistance Setting Switch PC LINK Name Function Left side Right side WIRE Transmission line Four-wire method...
  • Page 33 Section 2-4 Cable Length and Terminating Resistance Settings Max. Cable Length • Electrical (copper) cable length The total length of the electrical cables in the PC Link system can be up to 500 m. (Individual branch lines can be up to 10 m long.) •...
  • Page 34 Section 2-4 Cable Length and Terminating Resistance Settings Example Terminator Settings in a Multi-level System Terminator ON Terminator OFF Terminator OFF Terminator ON Terminator ON Level 1 Terminator ON Terminator OFF Terminator OFF Terminator OFF Level 2 Terminator ON Terminator ON Terminator OFF Terminator OFF Level 3...

  • Page 35: Data Areas For Pc Link Systems

    Section 2-5 Data Areas for PC Link Systems Data Areas for PC Link Systems LR Area Allocation In CVM1/CV Series PLCs, the Data Link Area (CIO 1000 to CIO 1063) is allo- cated as the PC Link’s LR Area. Words CIO 1000 to CIO 1199 are also used by SYSMAC LINK Units and Controller Link Units, so be sure that the words used by those networks do not overlap the PC Link’s LR Area.
  • Page 36 Data Areas for PC Link Systems Section 2-5 LR Area Allocation for Link #0 in Multi-level Systems Link Relay words 16 Units connected 8 Units connected 4 Units connected 2 Units connected 32 bits (2 words) per 64 bits (4 words) per 128 bits (8 words) per 256 bits (16 words) Unit...
  • Page 37 Data Areas for PC Link Systems Section 2-5 Even though these LR Area words can be used as work words, we recom- mend reserving all LR Area words for the Link functions only in order to avoid future conflicts and simplify maintenance. •...
  • Page 38 Section 2-5 Data Areas for PC Link Systems • PLC Run Flags in a Multi-level System (N = PC Link Unit’s unit number) Word in CPU Bus Unit Link Area CIO 1500 + 25 × N Link #1 Node 15 Node 14 Node 13 Node 12 Node 11 Node 10 Node 9 Node 8 CIO 1500 + 25 ×...
  • Page 39 Data Areas for PC Link Systems Section 2-5 CPU Bus Unit Flags Since the PC Link Unit is a CPU Bus Unit, the following Auxiliary Area flags and Control Bits and control bits are used to indicate status or control operation of the Unit. Word Bit(s) Name...

  • Page 40: Differences From Earlier Pc Link Units

    Section 2-6 Differences from Earlier PC Link Units Differences from Earlier PC Link Units Item CVM1-LK401 C200H-LK401 C500-LK009-V1 3G2A5-LK009 3G2A5-LK003- (See note 2.) Compatible PLCs CVM1/CV Series C200H, C200HS, C500, C1000H, and C2000H C500 C200HX/C200HG/ C200HE, and CS Series Unit family CPU Bus Unit Special I/O Unit Link Unit...
  • Page 41 Section 2-6 Differences from Earlier PC Link Units...

  • Page 42: Replacing An Existing Pc Link System

    SECTION 3 Replacing an Existing PC Link System This section provides step-by-step procedures to follow when replacing earlier PC Link Units with the C500-LK009-V1 and CVM1-LK401 PC Link Units. Replacing an Existing PC Link System ......PC Link Unit Replacement Procedure .

  • Page 43: Replacing An Existing Pc Link System

    Section 3-1 Replacing an Existing PC Link System Replacing an Existing PC Link System Use CVM1-LK401 PC Link Units when replacing the CPU Rack of a C500/ C1000H/C2000H PC Link system with a CVM1-series Rack. Existing PC Link cables can be used without changes, but there are limitations on communica- tions between CVM1-LK401 PC Link Units and earlier models, as shown in the following table.
  • Page 44 Section 3-1 Replacing an Existing PC Link System Examples and Use the following 3 examples as reference when replacing the CPU Rack of a Precautions C500/C1000H/C2000H PC Link system with a CVM1-series Rack. System with a C200H- If the PC Link system includes a C200H-LK401 PC Link Unit, C500-LK009-V1 LK401 Unit PC Link Units will be used in the C500/C1000H/C2000H Racks.
  • Page 45 Section 3-1 Replacing an Existing PC Link System System with 3G2A5-LK009 This example applies to existing PC Link systems containing 3G2A5-LK009 or Units in Single-level C500-LK009-V1 PC Link Units, operating in either single-level LK009 mode or LK009 Mode or Multi-level multi-level mode.
  • Page 46 Section 3-1 Replacing an Existing PC Link System System with C500-LK009- This example applies to existing PC Link systems containing 3G2A5-LK003-E V1 or 3G2A5-LK009 Units PC Link Units and 3G2A5-LK009/C500-LK009-V1 PC Link Units operating in in Single-level LK003 single-level LK003 mode. Mode or with 3G2A5- 1.
  • Page 47 Section 3-1 Replacing an Existing PC Link System C500-LK009-V1 in Multi-level Mode or Single-level LK009 Mode • Can communicate with the C500-LK009-V1, CVM1-LK401, C200H- LK401, and 3G2A5-LK009. • Can not communicate with the 3G2A5-LK003-E. Also, the PC Link will not operate properly if the earlier 3G2A5-LK009 is combined with a CVM1-LK401 or C200H-LK401.
  • Page 48 Section 3-1 Replacing an Existing PC Link System PC Link Unit The following table shows the allowed combinations of PC Link Units in a PC Combinations Link system. (An “x” indicates that the combination is not allowed. A number indicates the maximum number of the PC Link Units allowed in a PC Link, including the Polling Node.) Polled nodes CPU Unit C200H@/...

  • Page 49: Pc Link Unit Replacement Procedure

    Section 3-2 PC Link Unit Replacement Procedure PC Link Unit Replacement Procedure The following table outlines the procedures and precautions for replacement of PC Link Units. Item Unit or setting Description Reference CPU Rack CPU Unit (C500, C1000H, or Replace with CVM1/CV-series compo- CV-Series Programmable replacement C2000H)

  • Page 50: Cvm1-Lk401 Switch Settings

    Section 3-3 CVM1-LK401 Switch Settings CVM1-LK401 Switch Settings This section explains how to make the necessary settings in the replacement CVM1-LK401 PC Link Unit and compares the settings to the ones in the C500-LK009-V1 PC Link Unit being replaced. CVM1-LK401 C500-LK009-V1 Front Rear...

  • Page 51: Setting The Number Of Lr Bits (Max. Number Of Pc Link Units)

    Section 3-3 CVM1-LK401 Switch Settings In the CVM1-LK401, the node address is set in 2-digit decimal with the NODE NO. rotary switches on the front of the Unit. The ¥10 switch sets the tens digit and the 10 switch sets the ones digit. •...

  • Page 52: Setting The Level/Link Number

    Section 3-3 CVM1-LK401 Switch Settings • The Number of Bits is set with pins 6 to 8 of the CVM1-LK401’s DIP Switch. Setting on Setting on C500-LK009-V1 CVM1-LK401 1 2 3 4 5 6 7 8 Number of LR Bits Number of LR Bits Setting (Pins 6 to 8) Setting (Pins 6 to 8)

  • Page 53: Setting The Transmission Line And Terminating Resistance

    Section 3-3 CVM1-LK401 Switch Settings them with compatible models. For details, refer to 3-1 Replacing an Ex- isting PC Link System. (3) Pin 4 can be set to either 0 or 1, but set it to 1 (ON). (4) There will be data errors in the LR Area if two PC Link Units with the same level settings (both single-level, both multi-level link #0, or both multi-level link #0) are mounted in the same PLC.

  • Page 54: Ladder Programming Precautions

    Section 3-4 Ladder Programming Precautions Ladder Programming Precautions When a SYSMAC C500/C1000H/C2000H system is replaced with a CVM1/ CV-series system, the PC Link’s LR Area and Status Flags are in a different data area location. The different data area addresses must be used in ladder programs.
  • Page 55 Section 3-4 Ladder Programming Precautions LR Area Allocation for Single-level Mode C1000H/C2000H CVM1/CV Series 32 Units max. 16 Units max. 8 Units max. 4 Units max. 2 Units max. LR Area LR Area 32 bits (2 64 bits (4 128 bits (8 256 bits (16 512 bits (32 LR 00 to LR 63...
  • Page 56 Ladder Programming Precautions Section 3-4 LR Area Allocation for • Link #0 Multi-level Mode C1000H/C2000H CVM1/CV Series 16 Units max. 8 Units max. 4 Units max. 2 Units max. LR Area LR Area 32 bits (2 64 bits (4 128 bits (8 256 bits (16 LR 00 to LR 31 CIO 1000 to CIO 1031...

  • Page 57: Pc Link Status Area

    Ladder Programming Precautions Section 3-4 Example 2: An existing C1000H/C2000H PLC is set to multi-level mode operation, link #1, node address 0, and 64 Link Relay bits/Unit, so LR 32 to LR 35 are used as the transfer area. In the replacement CVM1/CV-series PLC, use CIO 1032 to CIO 1035 as the transfer area.

  • Page 58: Level Flags

    Section 3-4 Ladder Programming Precautions Flag Allocation in Multi- The following table shows the location of the PLC Run Flags and PC Link level Mode Error Flags, based on the PLC model and PC Link Unit’s unit number. C1000H/ CVM1/CV Series PC Link Error Flags PLC Run Flags C2000H...

  • Page 59: Plc Operation Mode (Synchronous/Asynchronous Mode)

    PLC Operation Mode (Synchronous/Asynchronous Mode) Section 3-5 3-4-4 CPU Bus Unit Status Flags Since the PC Link Unit is a CVM1/CV-series CPU Bus Unit, the following Aux- iliary Area flags and control bits are used to indicate status or control opera- tion of the Unit.

  • Page 60: Replacement Checklists

    Section 3-6 Replacement Checklists • The PC Link I/O response characteristics depend on the PLC model. For example, the PC Link data refreshing of a CVM1/CV-series PLC set for synchronous mode processing is about one cycle (one instruction execu- tion cycle) longer than it would be in a C1000H/C2000H PLC. For details on I/O response times, refer to Appendix C PC Link System I/ O Response Time.
  • Page 61 Section 3-6 Replacement Checklists Note (1) There will be data errors in the LR Area if the same node address is set on two PC Link Units in the same level. This condition is not detected as a Unit error, so be sure to check the node address settings. (2) There will be data errors in the LR Area if two PC Link Units with the same level settings (both single-level, both multi-level link #0, or both multi-level link #0) are mounted in the same PLC.
  • Page 62 Replacement Checklists Section 3-6 Switches • CVM1-LK401 LK401 THIS LINK 0 OTHER Unit Number Setting Switches Node Address Setting Switches DIP Switch (SW1) Transmission Line Selector Switch Terminating Resistance Setting Switch Number of LR bits setting (Pins 6 to 8) Reserved (Always OFF) Level/Link Number setting (Pins 3 and 4)
  • Page 63 Section 3-6 Replacement Checklists • 3G2A5-LK003-E LK003 PC LINK Front-panel Rear-panel DIP Switch DIP Switch 1 2 3 4 1 2 3 4 5 6 7 8 Pin 2: Always OFF Pins 6 to 8: Number of Pin 1: Terminating Resistance Setting Switch LR bits setting Pins 1 to 5: Node address setting...
  • Page 64 Section 3-6 Replacement Checklists • 3G2A5-LK009/C500-LK009-V1 PC LINK Transmission Line Selector Switch 1 2 3 4 1 2 3 4 5 6 7 8 Pins 3 and 4: Level/Link Number setting Pins 6 to 8: Pin 2: LED Display Pattern (A/B) selector Number of LR bits setting Pin 1: Terminating Resistance setting...

  • Page 65: Pattern A: Mixed Mid-Sized And Large Plcs

    Section 3-6 Replacement Checklists 3-6-1 Pattern A: Mixed Mid-sized and Large PLCs The pattern A system contains mid-sized (C200H@ or CS-series) PLCs and large (C500, C1000H, or C2000H) PLCs. Set the replacement PC Link Units as shown in the following table. Checklist 1 Use the following checklist when replacing a C500-LK009-V1 with a CVM1- LK401.
  • Page 66 Section 3-6 Replacement Checklists Item Original Unit: C500-LK009-V1 Replacement Unit: CVM1-LK401 Remarks Level/Link Check setting on pins 3 and 4 of SW3: Pins 3 and 4: Set the same Level/ The CVM1-LK401’s sin- Number Link Number as set on the C500- gle-level mode is equiva- LK009-V1.

  • Page 67: Pattern B: C500 Plcs In Single-Level Lk003 Mode Only

    Section 3-6 Replacement Checklists 3-6-2 Pattern B: C500 PLCs in Single-level LK003 Mode Only The pattern B system contains only C500 PLCs operating in single-level LK003 mode. The PC Link’s level setting must be changed to single-level LK009 mode. All 3G2A5-LK003-E and 3G2A5-LK009 PC Link Units in the PC Link must be replaced with C500-LK009-V1 PC Link Units (including 3G2A5- LK003-E and 3G2A5-LK009 PC Link Units in PLCs other than the one being replaced).
  • Page 68 Section 3-6 Replacement Checklists Item Original Unit: 3G2A5-LK003-E Replacement Unit: C500-LK009-V1 Remarks Terminating Check pin 1 of rear-panel Pin 1 of SW3: Set the same terminator set- Resistance switch: ting as set on the 3G2A5-LK003-E. 1(ON )0 (OFF)] Terminator con- Terminator connected.
  • Page 69 Section 3-6 Replacement Checklists Item Original Unit: 3G2A5-LK009/ Replacement Unit: C500-LK009-V1 Remarks C500-LK009-V1 Number of LR Check setting on pins 6 to 8: Set the same number of LR bits that Make the “number of LR bits” Bits was set on the original Unit. setting on the polling node ] Bits / [ ] Units...
  • Page 70 Section 3-6 Replacement Checklists Checklist 4 Use the following checklist when replacing a 3G2A5-LK003-E with a CVM1- LK401. Item Original Unit: 3G2A5-LK003-E Replacement Unit: CVM1-LK401 Remarks CPU Bus Unit Not applicable Any unique number in setting range Do not mount more PC Link unit number (Do not set the same unit number on Units than allowed.
  • Page 71 Section 3-6 Replacement Checklists Item Original Unit: 3G2A5-LK003-E Replacement Unit: CVM1-LK401 Remarks LR Area LR 00 to LR 31 CIO 1000 to CIO 1063 N is the CPU Bus Unit’s unit number. CIO 1500 + 25 × N to PC Link Error SR 62 CIO 1500 + 25 ×...
  • Page 72 Section 3-6 Replacement Checklists Item Original Unit: 3G2A5-LK009/ Replacement Unit: CVM1-LK401 Remarks C500-LK009-V1 Number of Check setting on pins 6 to 8: Set the same number of LR bits that Make the “number of LR bits” LR Bits was set on the 3G2A5-LK009/C500- setting on the polling node ] Bits / [ ] Units...

  • Page 73: Pattern C: Large Plcs In Multi-Level Or Single-Level Lk009 Mode

    Section 3-6 Replacement Checklists Item Original Unit: 3G2A5-LK009/ Replacement Unit: CVM1-LK401 Remarks C500-LK009-V1 LR Area LR 00 to LR 31 CIO 1000 to CIO 1063 When the PC Link Unit is set to single-level LK003 mode, CIO 1500 + 25 × N to PC Link Error SR 62 the level #1 PC Link Unit...
  • Page 74 Section 3-6 Replacement Checklists Item Original Unit: 3G2A5-LK009 Replacement Unit: C500-LK009-V1 Remarks LR Area LR 00 to LR 63 LR 00 to LR 63 (LR 00 to LR 31 in C500) (LR 00 to LR 31 in C500) PC Link Error SR 247 to SR 250/SR258 SR 247 to SR 250/SR258 and PLC Run...
  • Page 75 Section 3-6 Replacement Checklists Item Original Unit: 3G2A5-LK009/C500- Replacement Unit: CVM1-LK401 Remarks LK009-V1 Number of Check setting on pins 6 to 8 of SW1: Set the same number of LR bits Make the “number of LR LR Bits that was on the 3G2A5-LK009/ bits”...
  • Page 76 Section 3-6 Replacement Checklists Item Original Unit: 3G2A5-LK009/C500- Replacement Unit: CVM1-LK401 Remarks LK009-V1 LR Area LR 00 to LR 63 CIO 1000 to CIO 1063 N is the CPU Bus Unit’s (or LR 00 to LR 31 in the C500) unit number.
  • Page 77 Section 3-6 Replacement Checklists...

  • Page 78: Starting The Pc Link System

    SECTION 4 Starting the PC Link System This section explains how to start the PC Link system and verify that links have been established. Starting the PC Link System ........Checking the PC Link’s Operating Conditions.

  • Page 79: Starting The Pc Link System

    Section 4-1 Starting the PC Link System Starting the PC Link System After replacing the PLCs and PC Link Units in the existing system and making the necessary settings on the new PC Link Units, use a Programming Device (CX-Programmer or a Programming Console) to make the necessary settings in the PLC and start the PC Link.

  • Page 80: Checking The Pc Link's Operating Conditions

    Section 4-2 Checking the PC Link’s Operating Conditions Checking the PC Link’s Operating Conditions LED Indicators Turn ON the power supplies to all PLCs in the PC Link system and check the status of the PC Link Units’ LED Indicators with the PLCs in PROGRAM mode.
  • Page 81 Section 4-2 Checking the PC Link’s Operating Conditions Checking the PC Link’s The following table compares common LED Indicator displays with those of Status with LED Indicators the C500-LK009-V1 and C200H-LK401. ( : Lit, : Not lit, : Flashing) Indicator status Meaning CVM1-LK401 C200H-LK401...

  • Page 82: Error Processing

    SECTION 5 Error Processing This section provides tables to help identify and correct errors in the PC Link system. Troubleshooting with LED Indicators....... Troubleshooting with Status Area Functions .

  • Page 83: Troubleshooting With Led Indicators

    Section 5-1 Troubleshooting with LED Indicators Troubleshooting with LED Indicators LED Indicators The LED Indicators on the front of the PC Link Unit indicate when an error has occurred. • Display LK401 THIS LINK0 OTHER Name Color Status Unit status Green Lit The Unit is operating normally.
  • Page 84 Section 5-1 Troubleshooting with LED Indicators Troubleshooting with Use the following table to identify and correct errors based on the LED Indica- LED Indicators tor status. Indicator status Probable cause Remedy ERH LINK0 THIS OTHER Not lit Not lit Not lit Not lit Not lit Not lit The PC Link Unit is faulty.
  • Page 85 Section 5-1 Troubleshooting with LED Indicators Indicator status Probable cause Remedy ERH LINK0 THIS OTHER Not lit Not lit Local node is the polling node Check the Terminating Resistance (node 0): switch setting. Cables are disconnected or con- Check the cable connections and fix nected incorrectly.

  • Page 86: Troubleshooting With Status Area Functions

    Troubleshooting with Status Area Functions Section 5-2 Indicator status Probable cause Remedy ERH LINK0 THIS OTHER Flash- Not lit Lit Not lit A polling node’s (node 0) cables Check the Terminating Resistance are disconnected or connected switch setting. incorrectly. Check the cable connections and fix or replace the cable if necessary.
  • Page 87 Troubleshooting with Status Area Functions Section 5-2 Flag Allocation in Multi- level Mode Word PC Link Error Flags PLC Run Flags (N = Unit number) 1500 + 25 × N Link 1500 + 25 × N + 1 1500 + 25 × N + 2 Link 1500 + 25 ×...

  • Page 88: Standard Models

    Note The 3G2A9-AL005-(P)E and 3G2A9-AL006-(P)E are no longer being produced. RS-485 Connectors Name Model number Manufacturer Connector XM2A-0901 OMRON Housing XM2S-0911 OMRON One XM2A-0901 Connector and one XM2S-0911 Connector Housing are included with the PC Link Unit. Recommended Cable Model number Manufacturer CO-HC-ESV-3P ×...
  • Page 89 Standard Models Appendix A Optical Fiber Cables All Plastic Optical Fiber Cable (APF) Name Specifications Model number Plastic Optical Fiber Cable Cable only (w/o connector) B500-PF002 Order in multiples of 5 m from 5 to 100 m, or in lengths of 200 m or 500 m Optical Connector A With two optical connectors (brown)

  • Page 90: Link Adapter Specifications

    Appendix B Link Adapter Specifications Model number Function Connection method Power supply Power Weight (Allowable range) consumption 3G2A9-AL001 Branches an RS-422 Not required. 250 g RS-422 line. max. RS-422 RS-422 3G2A9-AL002- Branches an optical 100/200 VAC 10 VA max. 900 g Optical (APF/PCF) fiber line (APF or (85 to 132 VAC or...
  • Page 91 Appendix B Link Adapter Specifications 3G2A9-AL001 Link Adapter Dimensions Four, 3.5 dia. 74.6 58 20.5 Approx. 100 Pin Arrangement RS-422 3G2A9-AL001 Link Adapter...
  • Page 92 Link Adapter Specifications Appendix B 3G2A9-AL002-(P)E Link Adapter Dimensions Power supply Relay input Auxiliary power terminals terminals terminals Fuse Mounting hole dimensions FUSE 0.1A POWER 100 VAC T/R CONTIN AUX PWR 200 VAC AC/DC 12-24V 10VA AL002 10 dia. LINK ADAPTER MAIN MAIN BRANCH...
  • Page 93 Appendix B Link Adapter Specifications Cable Length (Maximum) Cable type 3G2A9-AL002-PE 3G2A9-AL002-E 20 m Cannot be connected. 200 m 800 m APF: All Plastic Optical Fiber Cable PCF: Plastic Clad Optical Fiber Cable • The Link Adapter will operate with either a 100/200 VAC or 12 to 24 V (AC or DC) power supply. •...
  • Page 94 Appendix B Link Adapter Specifications Internal Structure ● CTS (CS) Selector RS-232C RS-422 Set to 0 V to have the clear-to-send Name Name (CTS) signal always ON. Set to external to receive an external CTS signal. Switching ● Terminating Resistance Selector circuit When set to ON, connects the built- Exter-...
  • Page 95 Appendix B Link Adapter Specifications...

  • Page 96: Pc Link System I/O Response Time

    Appendix C PC Link System I/O Response Time Calculating the PC Link Transmission Time Calculating the PC Link Cycle Time The following diagram shows the PC Link’s cycle time. One cycle's transmission time 10 ms Polling Unit (Master) Processing Send Receive Slave Node 1...
  • Page 97 Appendix C PC Link System I/O Response Time I/O Response Time In these examples, the I/O response time is defined as the time required for an external input to PC Link node 0 (the polling node) to be output at node 7. The entire process includes the time required for the Link Relay bit in node 0 to turned ON by an external input, the data to be transferred to node 7, and the output to be turned ON by instruction execution.
  • Page 98 Appendix C PC Link System I/O Response Time If the PLCs are CVM1/CV-series PLCs, the multiplier (n) is 2. 1.5 + 20 + 12.8 + (50 × 2 ) + 15 = 149.3 ms Minimum I/O response time = Note (1) The I/O response time may be extended by environmental factors such as noise.
  • Page 99 Appendix C PC Link System I/O Response Time Maximum I/O Response Time (in Synchronous Mode) Cycle Input Peripheral processing time Processing Node 0 in PLC (PLC #0) Instruction PC Link buffer Max. transmission time execution PC Link transmission PC Link buffer Instruction Solicitation PC Link...
  • Page 100 Appendix C PC Link System I/O Response Time Maximum I/O Response Time (in Asynchronous Mode) Cycle Input I/O refreshing time Instruction Node 0 execution cycle Instruction execution (PLC #0) Peripheral processing cycle PC Link buffer Max. transmission time PC Link transmission Solicitation PC Link buffer PC Link...
  • Page 101 Appendix C PC Link System I/O Response Time...

  • Page 102: Pc Link Settings And Status Areas

    Appendix D PC Link Settings and Status Areas Comparison of Data Areas for the C500-LK009-V1, C200H-LK401, and CVM1-LK401 C500-LK009-V1 C200H-LK401 CVM1-LK401 C1000H and C500 C200H, C200HS, CVM1/CV Series C2000H and C200HX/HG/ (N = Unit number) Item Link Relay Area LR 00 to LR 63 LR 00 to LR 31 LR 00 to LR 63 CIO 1000 to CIO...
  • Page 103 Appendix D PC Link Settings and Status Areas...

  • Page 104: Revision History

    Revision History A manual revision code appears as a suffix to the catalog number on the front cover of the manual. Cat. No. W434-E1-01 Revision code The following table outlines the changes made to the manual during each revision. Page numbers refer to the previous version.
  • Page 105 Revision History...
  • Page 106 Wegalaan 67-69, NL-2132 JD Hoofddorp The Netherlands Tel: (31)2356-81-300/Fax: (31)2356-81-388 OMRON ELECTRONICS LLC 1 East Commerce Drive, Schaumburg, IL 60173 U.S.A. Tel: (1)847-843-7900/Fax: (1)847-843-8568 OMRON ASIA PACIFIC PTE. LTD. 83 Clemenceau Avenue, #11-01, UE Square, Singapore 239920 Tel: (65)6835-3011/Fax: (65)6835-2711...
  • Page 107 Authorized Distributor: Cat. No. W434-E1-01 Note: Specifications subject to change without notice Printed in Japan This manual is printed on 100% recycled paper.
  • Page 108 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 109 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 110 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.

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