Page 1 Cat. No. H142-E1-03 Modular Temperature Controllers USER´S MANUAL...
Page 2 Modular Temperature Controllers User’s Manual Revised July 2008...
Page 4 1. Indicates lists of one sort or another, such as procedures, checklists, etc. OMRON, 2006 All rights reserved. No part of this publication may be reproduced, stored in a retrieval system, or transmitted, in any form, or by any means, mechanical, electronic, photocopying, recording, or otherwise, without the prior written permission of OMRON.
Page 5 The following are some examples of applications for which particular attention must be given. This is not intended to be an exhaustive list of all possible uses of the products, nor is it intended to imply that the uses listed may be suitable for the products: Outdoor use, uses involving potential chemical contamination or electrical interference, or conditions or uses not described in this manual.
Page 6 PERFORMANCE DATA 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.
Page 7 Safety Precautions ■ Definition of Precautionary Information The following notation is used in this manual to provide precautions required to ensure safe usage of the product. The safety precautions that are provided are extremely important to safety. Always read and heed the information provided in all safety precautions.
Page 8 Tighten the terminal screws to between 0.40 and 0.56 N·m. Loose screws may occasionally result in fire. Set the parameters of the product so that they are suitable for the system being controlled. If they are not suitable, unexpected operation may occasionally result in property damage or accidents.
Page 9 AWG28 to AWG16 (equal to cross-sectional area of 0.081 to 1.309 mm ) for all other lines. (The stripping length is 6 to 8 mm.) Up to two wires of same size and type, or two crimped terminals can be inserted into a single terminal.
Page 10 15) Use a switch, relay, or other device with contacts to turn OFF the power supply quickly. Gradually lowering the voltage of the power supply may result in incorrect outputs or memory errors. 16) Do not touch the electronic components with your hands or subject them to shock when removing the terminal block.
Page 11 If the measurement accuracy is low, check to see if input shift has been set correctly. ● Precautions for Operation It takes a certain amount of time for the outputs to turn ON from after the power supply is turned ON. Due consideration must be given to this time when designing control panels, etc.
Page 12 Preparations for Use Be sure to thoroughly read and understand the manual provided with the product, and check the fol- lowing points. Timing Check point Details Purchasing the product Product appearance After purchase, check that the product and packaging are not dented or otherwise damaged.
Page 13 Related Manuals The manuals related to the EJ1 are configured as shown in the following tables. Refer to these manu- als as required. ■ EJ1 Name Cat. No. Contents H142 Describes the following information on the EJ1. EJ1N-TC2@ (This Overview and features...
Page 14 Name Cat. No. Contents SYSMAC CS/CJ/NSJ Series W342 Describes the C-series (Host Link) and FINS com- CS1G/H-CPU@@-EV1, CS1G/H-CPU@@H, munications commands used with CS/CJ-series CS1D-CPU@@H, CS1D-CPU@@S, CJ1G-CPU@@, PLCs. CJ1M-CPU@@, CJ1G-CPU@@P, CJ1G/H-CPU@@H, CS1W-SCB@@-V1, CS1W-SCU@@-V1, CJ1W-SCU@@-V1, CP1H-X@@@@-@, CP1H-XA@@@@-@, CP1H-Y@@@@-@, Communications Commands Reference Manual...
Page 15 Programming methods CP1L-L10D@-@ Tasks CP1L-L14D@-@ Programming instructions CP1L-L20D@-@ CP1L-M30D@-@ CP1L-M40D@-@ CP1L-M60D@-@ SYSMAC CP Series CP1H /CP1L CPU Unit Programming Manual CP1L-L10D@-@ W461 Describes basic setup methods of CP1L PLCs: CP1L-L14D@-@ Basic configuration and component names CP1L-L20D@-@ Mounting and wiring CP1L-M30D@-@...
Page 16 Smart Active Parts Reference Manual V087 Describes the Smart Active Parts (SAP) function- (PDF ality and the settings required to use the SAP only) library. This document does not describe applica- tion restrictions for specific Units or Components or restrictions in combinations. Always refer to the operation manual for the products involved before using the SAP library.
Page 17 Contents CXONE-AL@@C-EV3/AL@@D-EV3 W463 Installation and overview of CX-One FA Integrated Tool Package. CX-One Ver. 3.0 FA Integrated Tool Package Setup Manual CXONE-AL@@C-EV3/ CXONE-AL@@D-EV3 W464 Describes operating procedures for the CX-Inte- CX-Integrator Ver. 3.0 Operation Manual grator Network Configuration Tool for CS-, CJ-, CP-, and NSJ-series Controllers.
Page 18 C, m, and g. The size of EU varies according to the input type. For example, when the input temperature setting range is –200 to +1300 C, 1 EU is 1 C, and when the input temperature setting range is –20.0 to +500.0 C, 1 EU is 0.1 C.
Page 20: Table Of Contents
SECTION 2 Preparations ........
Page 21 Index..........271 Revision History ........279...
Page 22 About this Manual: This manual describes the EJ1 Modular Temperature Controllers and includes the sections described below. Please read this manual carefully and be sure you understand the information provided before attempting to set up or operate an EJ1 Modular Temperature Controller.
Page 23 • The maximum number of parameters that can be specified for programless upload/download setting has been increased from 600 to 1200 each. • The maximum number of TC4/TC2 Units that an HFU can control has been increased from 16 to 32 Units.
Page 24 • Identifying Upgraded Models The new functionality can be used with version 1.2 (V1.2). Check the label on the Temperature Con- troller or the box to determine the version. Models not marked “Ver. 1.1” are version 1.0. Temperature Controller Label...
Page 25 Use version 3.20 or higher of the CX-Thermo when using the upgraded functions. • Identifying Upgraded Models The new functionality can be used with version 1.1 (V1.1). Check the label on the Temperature Con- troller or the box to determine the version. Models not marked “Ver. 1.1” are version 1.0.
Page 26: Outline
Main Unit Functions ........
Page 27: Names Of Parts
TC4, TC2, or HFU EDUA EDUC Screw Terminals Screw-Less Clamp Terminals Models with Screw Connector terminal Terminals block model 1-1-2 Names of Parts on Front Panel Operation Indicators Port A connector Operation Indicators COM1 PWR 1 COM2 RUN 2 COM3 ERR 3...
Page 28: Meanings Of Indicators
COM3 Orange Flashes during communications via port C. Note Some time is required for the indicators to light after the power is turned ON. 1-1-4 Using Setting Switches • Check that the EJ1 is turned OFF before operating the switches. The set- tings are enabled when the power is turned ON.
Page 29 Turn ON pin 8 on SW2. Note Make sure power to the Unit is turned OFF before making settings for No. 6. Settings can be made for No. 6 can be turned ON or OFF with the power ON. EJ1@-HFU (Advanced Unit)
Page 30: I/O Configuration And Main Functions
Port A communications Internal bus 1 Internal bus 2 Port B communications Internal bus 3 Inside the device • Internal device I/O are connected via a connector to the adjacent Unit. TC2: Two-channel Basic Unit Control output 1 Main input 1 Control...
Page 31: Main Unit Functions
• Data can be exchanged between the EJ1 and PLCs using programless communications. • With version V1.0, up to 300 data items can be read from a PLC to the EJ1 and up to 300 data items can be written from the EJ1 to a PLC. With...
Page 32: Model Number Legend
• The End Unit supplies power to connected Basic Units and HFUs. • An End Unit is always required when using the EJ1. • A total of up to 16 HFUs and Basic Units can be connected to one End Unit.
Page 33 Screw-less clamp terminals Unit name Advanced Unit Type Standard control 9 10 11 12 13 14 H F U A H F U A H F U B N F L K H F U B N F L 2...
Page 34: Internal Block Diagrams
Internal buses 1 to 3 24 VDC : Functional isolation Note (1) The CT inputs are not present on EJ1 Controllers with linear outputs. (2) These are current outputs on EJ1 Controllers with linear outputs.
Page 35 Port C communications SRAM circuit Port A commu- Port B commu- nications circuit nications circuit Internal buses 1 to 3 24 VDC Port A connector TTL conversion circuit Port A communications Port B communications Internal bus 1 Drive Transistor...
Page 36: Preparations
Wiring Precautions ........
Page 37: Installation
Section 2-1 Installation 2-1-1 Dimensions (Unit: mm) TC4, TC2, and HFU Models with Screw Terminals: 109 Models with Screw-less Clamp Terminals: 104.85 Models with Screw Models with Screw-less Terminals Clamp Terminals Models with Screw Terminals: 76.2 Connector terminal block model: 79.7 15.7...
Page 38 1. Align the connectors and connect the Units to each other. Note Connect the EDU on the right end of the EJ1 and the HFU on the left end. 2. Slide the yellow sliders on the top and bottom of the Units until they click into place.
Page 39 Installation Method Pull down the hooks on the bottoms of the Units, and then catch the hooks on the tops of the Units onto the DIN Rail and press the Units onto the DIN Rail until they lock into place.
Page 40 1. Pull down the terminal block lever. Pull down the lever. 2. Pull off the terminal block. Pull off the terminal block. Note Screw and screw-less terminal blocks cannot be exchanged. Use the type of terminal block supplied with the TC Unit.
Page 41: Wiring Terminals
Terminals A10 and B10 are not used on models with screw-less clamp terminals. Do not connect anything to these terminals. A G3ZA connector is located on the bottom of the Unit. When wiring voltage inputs, be sure to wire the correct terminals. Incorrect wiring...
Page 42 Terminals A10 and B10 are not used on models with screw-less clamp terminals. Do not connect anything to these terminals. A G3ZA connector is located on the bottom of the Unit. When wiring voltage inputs, be sure to wire the correct terminals. Incorrect wiring may cause the EJ1 to fail.
Page 43 • Use crimp terminals when wiring the terminals. • Tighten the terminal screws to a torque of 0.40 to 0.56 N·m. • Up to two wires of the same size and same type or two crimp terminals can be inserted into a single terminal.
Page 44 Section 2-2 Wiring Terminals Wiring Procedure for There are two holes for each terminal. The hole on the right is the operating Screw-Less Clamp hole; the hole on the left is the wire hole. Terminals Insert a flat-blade screwdriver with a width of 2.5 mm into the operating hole and then insert the wiring into the wire hole.
Page 45 Connect inputs according to the input type as shown below. Thermocouple inputs Platinum resistance Analog inputs Infrared thermosensor thermometer inputs Control Outputs Terminals B1 to B3 and A1 to A3 on the TC4/TC2 are for control outputs. OUT2 12 VDC 12 VDC OUT4 OUT1 12 VDC...
Page 46 0 to 20 mA (resolution: approx. 3,500) Load: max. Auxiliary Outputs Auxiliary outputs are sent from pins B1 to B6 with the HFU, and from pins 3 to 5 with the EDUA. When using an EDUC, auxiliary outputs are sent from pins 3 to 6. SUB2...
Page 47 • For communications with the host, connect communications across termi- nals B7 and B8 or terminals A7 to A9 on the HFU or connect across ter- minals 1 and 2 or terminals 6 and 7 on the EDU. When using a connector...
Page 48 1 and 2 of port A on the EDU. • Specify both ends of the transmission path, including the host computer, as end nodes (i.e., connect terminators to both end). The minimum termi- nating resistance is 54 .
Page 49 • The RS-485 connection can be either 1: 1 or 1: N. RS-232C connections can only be 1: 1. A maximum of 64 Units (including the host) can be con- nected in 1: N systems. The maximum total cable length is 500 m. Use AWG28 (cross-sectional area: 0.081 mm...
Page 50 B ( ) Crimp Terminals A ( ) Model: SPHD-001T-P0.5 Use an EJ1-CBLA050 Cable (manufactured by OMRON). The EJ1 contains 120 of terminating resistance. Connect a terminating resistor (110 to 125 , 1/2 W) only to the end G3ZA node. TC4/2...
Page 51: Using Tool Ports
1,2,3... 1. Turn ON the power to the EJ1. Note Do not connect the E58-CIFQ1 when power to the EJ1 is OFF. If the Cable is connected when the power to the EJ1 is OFF, power will be supplied from the computer and impose a load on the inter- nal circuits of the EJ1.
Page 52: Unit Configuration Examples
Unit Configuration Examples Section 2-4 Unit Configuration Examples Minimal Configuration • The two auxiliary alarm outputs (transistor outputs) provided on the End Unit can be used. • The G3ZA or G3PW can be connected. EJ1@-TC4 EJ1@-EDU EJ1@-TC2 Port A (connector): USB connection can be made using the E58-CIFQ1 (sold separately).
Page 53 • The two auxiliary alarm outputs (transistor outputs) provided on the End Unit can be used. • In addition to the two auxiliary alarm outputs provided on the End Unit, the four event inputs and four transistor outputs on the HFU can be used.
Page 54 (1) The host device and End Units are not counted when calculating the limit of 64 Basic Units. (2) Set the unit numbers of the Basic Units to between 0 and 63. Be sure not to set the same number for more than one Basic Unit.
Page 55 Unit Configuration Examples • When using distributed position, connect like ports on the End Units. • If port A on the terminal blocks is connected for distributed position, then the port A connector can be connected to a computer using an E58- CIFQ1 USB-Serial Conversion Cable to use the CX-Thermo to set the parameters for the distributed EJ1.
Page 56 TC4/TC2 Unit. However, the G3ZA and G3PW cannot be used together. Note Either turn ON the power to the G3ZA or G3PW first, or turn ON the power to the G3ZA or G3PW simultaneously with the EJ1. Connect a terminating resistor only to the end G3ZA node.
Page 57 • Always connect the HFU on the left side of the TC4/TC2 Units. Connections and Incorrect Correct Placement EJ1@-TC4 EJ1@-HFU EJ1@-TC4 EJ1@-HFU EJ1@-TC2 EJ1@-TC2 • Do not connect an EDU directly to an HFU. Always connect the EDU to a TC4/TC2. Correct Incorrect EJ1@-TC4 EJ1@-EDU EJ1@-HFU EJ1@-HFU EJ1@-EDU EJ1@-TC2...
Page 58: Typical Control Examples
Control Linked to a Host Device........
Page 59: Minimum Configuration For Control
Minimum Configuration for Control Minimum Configuration for Control 3-1-1 Application This section shows an example configuration for a small electric oven and explains how to set up and control the system using the CX-Thermo Support Software. Small electric oven Temperature Sensor...
Page 60: Wiring
EJ1. 2. Connect the computer's USB port to the port A connector on the EJ1 using the Cable. Note A driver must be installed to use the Cable.
Page 61 Section 3-1 Minimum Configuration for Control 4. The following table shows the related parameter settings for this example. CX-Thermo Basic Mode Setting Example Setting example Remarks EJ1N-TC2A-QNHB 0 Control in progress parameters Bank 0 Bank 0 Set Point - CH1...
Page 62: Adjustment
Special Remarks The CX-Thermo Support Software starts in Basic Mode by default. If you want to set parameters that are not displayed in Basic Mode, select View - View Mode and switch to Advanced Mode to enable the advanced settings.
Page 63: Multi-Channel Control
• A single Temperature Controller can handle the 4-zone control if a 4- channel Basic Unit (EJ1@-TC4) is used. Up to 16 Basic Units can be con- nected to one EJ1C-EDU End Unit to expand to a maximum of 64 chan- nels.
Page 64: Wiring
CH4 - Input Type (Variable type E0, Address 0400) 0006: K 20.0 to 500.0°C OUT1 - Control Output 1 Assignment (Variable type E1, Address 0100) 002F: Channel 1 MV (heating) OUT2 - Control Output 2 Assignment (Variable type E1, Address 0200) 004F: Channel 2 MV (heating)
Page 65: Adjustment
0000: 0.5 s Note • Connect the PT to port B. • Set the write mode to backup mode. • Set the PT's communications parameters the same as the port B commu- nications parameters. 3-2-4 Adjustment Execute autotuning (AT) to make the PID adjustments.
Page 66: Control Linked To A Host Device
G3NA Solid State Relays • If an EJ1@-HFU is used, a ladder program does not have to be created to exchange data such as temperature readings and alarm status with the PLC. Also, up to 16 Basic Units can be connected to a single HFU to expand the system to a maximum of 64 channels.
Page 67: Wiring
• Connect the Solid State Relays to the output terminals. • Connect the PLC with an RS-232C communications cable. Wire the circuits as shown below when using an EJ1@-HFU and three EJ1@- TC4 Units. (The following diagram shows the wiring for just one of the EJ1@-TC4 Units.)
Page 68: Setup
Software can be connected using an E58-CIFQ1 Connecting Cable to set the parameters from a personal computer. • The following table shows the parameters related to communications between the EJ1 and PLC, as well as example settings. Set the unit num- ber of the HFU to 0. Parameter...
Page 69: Adjustment
End Unit, either turn OFF the Programmable Terminal's power supply or switch the Programmable Terminal's screen to the system menu. The following example settings are for communications with port 2 of a CJ1W- SCU41 Serial Communications Unit. Port 2: User/custom settings...
Page 70: Controlling G3Za Controllers Connected To Output Devices
Application In this example configuration, G3ZA Multi-channel Power Controllers are used to control the temperature in a 4-zone heater plate with a single control loop by applying a fixed coefficient (slope) to the results of the EJ1's PID calcula- tions.
Page 71 Section 3-4 Controlling G3ZA Controllers Connected to Output Devices Using the G3ZA's MV Calculations for Slope (Gradient) Control G3ZA Multi-channel Power Controller Unit MV 11 No.1 MV 12 Channel 1 RS-485 sensor input MV 13 MV 14 RS-485 Unit MV 21 Channel 2 No.2...
Page 72: Wiring
Section 3-4 3-4-2 Wiring Connect the Temperature Sensors to the input terminals according to the sen- sor's input type. • Connect the EJ1 and G3ZA with the EJ1C-CBLA050 Cable. • Connect the Solid State Relays to the G3ZA's output terminals.
Page 73: Setup
If ST is activated, the PID will be automatically calculated when using stan- dard control. V1.2 Refer to 4-3-8 Tuning for details. Set the slope and offset values independently to match the system. (The default value for the slope is 100.0% and the default value for the offset is 0.0%.)
Page 74: Basic Units (Tc4 And Tc2) Functions
Temperature Inputs ........
Page 75 Other Functions (TC4 and TC2) ........
Page 76: Setting Input Specifications
Section 4-1 Setting Input Specifications Setting Input Specifications 4-1-1 Input Type Set the input type to match the type of sensor being used. Variable type Parameter name Setting range Default E0/A0 Input Type (Channel) 0 to 29 0 to 30 V1.2...
Page 77: Temperature Inputs
This parameter can be set only when operation is stopped. 4-1-3 Analog Inputs When an analog input is selected, scaling can be performed as needed by the control application. • The Scaling Upper Limit, Scaling Lower Limit, and Decimal Point Position parameters are used for scaling.
Page 78: Input Shift (Correction)
If the Scaling Lower Limit > Scaling Upper Limit, the larger value will function as the Scaling Upper Limit. ■ Setting Example In this example, scaling is set to display 0 to 5 V as 10.0% to 95.0%. Scaling Upper Limit = 950 Scaling Lower Limit = 100 Decimal Point Position = 1...
Page 79 • Input Shift 1 = Input Shift 2 = 1.2 Note It is not necessary to set the Input Value 1 for Input Correction or Input Value 2 for Input Correction parameters. Leave these parameters set to their default settings.
Page 80 1. Shift the controller readout at two reference temperatures, near room tem- perature and near the value at which the temperature of the control target is to be controlled. Bring the temperature of the control target close to room temperature and close to the set point, and check control target tempera- ture (B) and controller readout (A).
Page 81: Input Filter
500°C = 50.00°C 4-1-5 Input Filter Sets the time constant of the digital input filter. The following diagram shows the response of the digital filter to a step-wise input of amplitude A. PV before passing through filter PV after passing through filter 0.63 A...
Page 82: Setting Output Specifications
The Temperature Controller Error output will turn ON when an bit be- tween bit 0 and bit 13 in the Device A Status is ON. It can be used to out- put EJ1 error status. Refer to Status Lists on page 255 for details on Device A Status.
Page 83: Control Output Method
MV % Example: When the control period is 10 s, the minimum output ON/OFF width is 10.0%, and the MV is less than 10.0%, the output will be 0%. When the MV is 90.0% or greater, the output will be 100%.
Page 84: Output On Scheduling Function
4-2-4 Output ON Scheduling Function The ON time for each output can be reduced to one half or one fourth of the control period to limit the number of outputs in the Unit that are ON simulta- neously.
Page 85 Section 4-2 Setting Output Specifications Even if the Output ON Scheduling Method is set, the outputs may be ON at the same time due to the delay in the output device's operation. In this case, you can prevent the outputs from being ON simultaneously by setting a delay with the Delay between Outputs parameter.
Page 86: Output Scaling
Control Output Assignment must be set to Control output (heating) or Control output (cooling). Note (1) These parameters can be set only when operation is stopped. (2) Use 40% AT when output scaling has been set. If 100% AT is used, hunt- ing will occur.
Page 87: Transfer Outputs
Output Scaling Lower Limit 4 0 Decimal Point C4 4-2-6 Transfer Outputs Output 1 and output 2 on Controllers with linear outputs can be used as trans- fer outputs. Use the following procedure. 1,2,3... 1. Set the parameter to be output on the transfer output.
Page 88 Output Scaling Lower Limit 1 Decimal Point C1 Transfer output (mA) Process value ( C) 300.0 500.0 Reverse scaling can also be performed with output scaling. Transfer output (mA) Reverse scaling Transfer output (heating) (%) Output Scaling Output Scaling Upper Limit...
Page 89: Setting Control Specifications
This parameter can be set only when operation is stopped. When this parameter has been changed, the new setting becomes effective the next time a software reset is performed for the Unit or the next time power is turned ON.
Page 90: Selecting The Control Method
In ON/OFF control, the control output turns OFF when the currently controlled temperature reaches a preset set point. When the manipulated variable turns OFF, the temperature begins to fall and the control output is turned ON again. This operation is repeated at a certain level. The Hysteresis (Heating) param- eter determines how much the temperature must fall before the control output is turned ON again.
Page 91 Section 4-3 Setting Control Specifications ■ Three-position Control In heating/cooling control, a dead band area can be set where the MV is 0% for both heating and cooling. with a dead band, 3-position control can be achieved. Dead band Hysteresis (Heating)
Page 92 The control method must be set to 2-PID control. Note When this parameter has been changed, the new setting becomes effective the next time a software reset is performed for the Unit or the next time power is turned ON.
Page 93: Selecting The Output Mode
Direct operation Reverse operation For example, when the process value (PV) is lower than the set point (SP) in a heating control system, the manipulated variable increases according to the difference between the PV and SP. Accordingly, this is “reverse operation” in a heating control system and “direct operation”...
Page 94 Control to one of the outputs. For example, when you want to perform heating/cooling control with channel 1, assign channel 1 control output (cooling) to one of the outputs. • Refer to 4-2-1 Control Output Assignments for details on assigning the control output for cooling.
Page 95 The control method must be set to heating/cooling control. Note The decimal point position is determined by the sensor selection. In this case, however, the 0 (****) decimal point position setting will be treated as setting 1 (***.*). Refer to 4-7-1 Bank Function for details on banks.
Page 96: Setting The Set Point
The decimal point position is determined by the sensor selection. Refer to 4-7-1 Bank Function for details on banks. Set the set point so that it is within the input range as well as the set point lim- iter range.
Page 97: Setting The Sp Ramp
4-3-5 Setting the SP Ramp The SP ramp function restricts the width of changes in the set point as a rate of change. When the SP ramp function is enabled and the change width exceeds the specified rate of change, this function can restrict the set point within an area, as shown in the following diagram.
Page 98: Remote Sp
Note (1) This parameter can be set only when operation is stopped. (2) The function is stopped if this parameter is set to 0. The unit is determined by the setting of the SP Ramp Time Unit parameter. The decimal point position is determined by the sensor selection.
Page 99 Unit or the next time power is turned ON. (2) The remote SP function can be used for channel 1 or channel 2 for the TC4, but only for channel 1 for the TC2.
Page 100 Time SP mode 1,2,3... 1. When the SP is at LSP1 and operation is switched to the remote SP, the SP switches to RSP2. 2. The SP progresses according to the remote SP input. 3. If the SP Tracking function is enabled when control is switched to the local SP, the SP will become LSP2.
Page 101: Setting The Manipulated Variable (Mv)
The Remote SP function must be enabled. Note This parameter can be set only when operation is stopped. SP tracking can be used for channel 1 or channel 2 for the TC4, but only for channel 1 for the TC2. 4-3-7 Setting the Manipulated Variable (MV) ■...
Page 102 105.0 to 105.0 (for heating/cooling control) % Conditions for use The control method must be set to 2-PID control. The order of priority is as follows: Manual MV > MV at Stop > MV at PV Error. ■ MV at PV Error This parameter sets the MV when an input error or remote SP input error occurs.
Page 103: Tuning
V1.2 Note Set the limits so that the MV Upper Limit > MV Lower Limit. If the MV Lower Limit > MV Upper Limit, the larger value will function as the MV Upper Limit. 4-3-8 Tuning Autotuning (AT)
Page 104 Note This parameter is disabled for 100% AT. ■ 40% AT • The width of MV variation in the limit cycle can be changed with the Limit Cycle MV Amplitude parameter. In this case, autotuning will take longer to execute than it does with 100% AT.
Page 105 (e.g., a heater) simultaneously, or turn ON the power for the load first. If the power is turned ON for the EJ1 before turning ON the power for the load, self-tuning will not be performed properly and optimum control will not be achieved.
Page 106 PID constants for the previous SRT. 2. In this state, the measurement point is within the ST stable range. 3. In this state, the change width of the PV every 60 seconds is at the ST sta- ble range or less.
Page 107: Disturbance Overshoot Adjustment Function
Set value Time Time Start of control Start of control • When the temperature (PV) falls short of the set point for the PID con- stants when using AT/ST in normal mode, executing AT/ST V1.2 V1.2 RT mode tends to improve performance.
Page 108 The recovery time from the disturbance can be made longer by increasing the Disturbance Time Constant. The Disturbance Time Constant is normally left at its default setting of 1. Use this parameter for fine-tuning when adjusting the Disturbance Gain alone is not sufficient.
Page 109: 4-3-10 Operation During Errors
Unit or the next time power is turned ON. • When setting 1 (MV at PV Error) is being used, set the MV at PV Error in variable type D5/95. For details, refer to MV at PV Error on page 77.
Page 110 Note Applies to the channel associated with the CT (current transformer). For example, when the Control Output 1 Assignment is set to Channel 1 Con- trol Output (Heating) and the CT1 Assignment is set to OUT1, channel 1 will operate according to the Operation During Error (Selection B) setting if a heater burnout is detected at CT1.
Page 111: Setting Alarm Specifications
Section 4-4 Setting Alarm Specifications Setting Alarm Specifications 4-4-1 Alarm Types Set the alarm type for each of the alarms in Alarm 1 Type, Alarm 2 Type, and Alarm 3 Type (variable type: E3/A3). Set value Alarm type Alarm Output Function...
Page 112: Alarm Value
D0/90 Alarm Value 1 to 3 (BANK) 1999 to 9999 EU 0 Conditions for use The alarm type must not be set to an upper and lower limit alarm, or to an LBA. Variable type Parameter name Setting range...
Page 113: Standby Sequence
4-4-4 Standby Sequence The standby sequence can be used so that an alarm will not be output until the process value leaves the alarm range once and then enters it again. For example, with a lower limit alarm, the process value will normally be below the set point, i.e., within the alarm range, when the power supply is turned...
Page 114: Closed In Alarm Or Open In Alarm
Alarm Delay Delays can be set for the alarm outputs. ON and OFF delays can be set for each alarm and also reflected in the com- munications status. The alarm's ON delay will also operate when the power is turned ON or a software reset is performed.
Page 115: Alarm Sp Selection
Section 4-4 Setting Alarm Specifications • The alarm will not turn ON if the time that the alarm is ON is equal to or less than the ON delay set time. Likewise, the alarm will not turn OFF if the time that the alarm is OFF is equal to or less than the OFF delay set time.
Page 116: Detecting Current Errors
4-5-2 Heater Burnout Alarm (HB Alarm) A heater burnout is detected by measuring the heater current while the control output (heating) is ON. For details, refer to the following table. (Heater burnout detection cannot be used with the control output for cooling.)
Page 117 1.0 A for heaters of less than 10.0 A, and at least 2.5 A for heaters of 10.0 A or more. If the heater current is too low, loop the load line several times through a CT, as shown in the diagram below.
Page 118 Section 4-5 Detecting Current Errors Installing Current Connect the CT in advance to terminals A8 and A9 (CT1) or A7 and A9 (CT2), Transformers (CT) and pass the heater power line through the CT's hole. Refer to Current Trans- former on page 230 for details on compatible CT specifications, models, and (HB Alarm) dimensions.
Page 119 Set value = Current Value • To set the value of the heater burnout when two or more heaters are con- nected through the CT, use the current value of the smallest heater con- nected. (When all of the heaters have the same current value, use the current value when one of the heaters has burned out.)
Page 120 To CT input To CT input The heater current is 5 A when the current is normal, and 0 A when there is a burnout, so the heater burnout detection current is calculated as follows: Normal current value + Burnout current value...
Page 121     = 10 A = 15 A The heater burnout current when there is a burnout at the load line is as fol- lows: 17.3 Heater burnout detection current = ------------------------ 16.15 [A] The heater burnout current when there is a burnout at the load is as follows: 17.3...
Page 122 200 V 200 V 5.8 A 200 V To CT input 5.8 A To CT input   When each phase's current is normal, the current is: 5.8 A 10 A ------ -     Heater Burnout Occurred Burnout...
Page 123: Heater Short Alarm (Hs Alarm)
Current when there is a burnout = 0 A Current when there is a burnout = 10 A -- - = 5 A The heater burnout current when there is a burnout at the common is as fol- lows: --------------- - Heater burnout detection current = 7.5 [A]...
Page 124 1.0 A for heaters of less than 10.0 A, and at least 2.5 A for heaters of 10.0 A or more. If the heater current is too low, loop the load line several times through a CT, as shown in the diagram below.
Page 125: Heater Overcurrent Alarm (Oc Alarm)
Detecting Current Errors ■ HS Alarm Latch and Latch Cancel The HS alarm latch can be used to keep an HS alarm ON once it goes ON. The latch can be released by executing an operation command (Reset Error or Software Reset), cycling the power, or setting the HS Alarm parameter to 100.0 A.
Page 126 1.0 A for heaters of less than 10.0 A, and at least 2.5 A for heaters of 10.0 A or more. If the heater current is too low, loop the load line several times through a CT, as shown in the diagram below.
Page 127: Using The Loop Break Alarm (Lba)
4-6-1 Loop Burnout Alarm (LBA) With a loop burnout alarm, there is assumed to be an error in the control loop if the control deviation (SP-PV) is greater than the threshold set in the LBA Level parameter and if the control deviation is not reduced by at least the value set in the LBA Band parameter within the specified LBA Detection Time.
Page 128 LBA level, preventing detection of the loop burnout. • If the set point is so high or low that it cannot be reached even with a sat- urated manipulated variable, a temperature deviation may remain even in a steady state and a loop burnout may be detected.
Page 129: Other Functions (Tc4 And Tc2)
• Dead Band • Alarm Value 1 to 3 • Alarm Upper Limit Value 1 to 3 • Alarm Lower Limit Value 1 to 3 The currently selected bank's parameters can be read or written by reading or writing the “Present Bank” parameters.
Page 130: Event Inputs (Tc2)
This parameter can be set only when operation is stopped. When this parameter has been changed, the new setting becomes effective the next time a software reset is performed for the Unit or the next time power is turned ON.
Page 131: Internal Buses (Tc4 And Tc2)
Even if an HFU is used, Bus Input cannot be used for TC Units connected to the RS-485 communications lines using distributed positioning. (2) Set the bus settings correctly in each Unit so that there are no conflicts in operation within the EJ1 system.
Page 132 The Temperature Controller Error output will turn ON when an bit between bit 0 and bit 13 in the Device A Status is ON. It can be used to output EJ1 error status. Refer to Status Lists on page 255 for details on Device A Status.
Page 133: Using G3Za Multi-Channel Power Controllers
Basic Unit. If more than eight Units are connected, a configura- tion error will occur. 2. Turn ON pin 7 of SW2 on the Basic Unit, set SW2 on the G3ZA to 3 (57.6 kbps), and set SW1 on the G3ZA to between 0 and 15 (unit number).
Page 134 G3ZA1, G3ZA2, etc., in order starting with the lowest unit number. Example: In this example, the G3ZA Units have been set to unit numbers 0, 1, 7, and 8. The following diagram shows how the G3ZA Units are associated with the EJ1.
Page 135 (1) When standard control is being used, the Channel 5 to 8 MVs will be set to 0.0%. (2) With a TC2, the Channel 3, 4, 7, and 8 MVs will be set to 0.0%. MVs Output from the The outputs of predetermined channels are set in the G3ZA's MV, but any MV G3ZA can be output to multiple channels by setting the G3ZA's “Source Channel.”...
Page 136: Using The G3Pw
Other Functions (TC4 and TC2) Section 4-7 !Caution If the MV is stored or calculated at the G3ZA and the G3ZA is turned ON before the EJ1, the controlled variable produced at the G3ZA will be output (the output may not be 0.0%) until the EJ1 starts operating. When using MV storage or MV calculation, verify that the controlled variable produced by the G3ZA is appropriate.
Page 137 Other Functions (TC4 and TC2) Section 4-7 5. Check the Configuration Error A Status to confirm that no errors have oc- curred, then execute a Register Unit Configuration: Register operation command. Always execute this command. If the configuration is not regis-...
Page 138 G3PW set values can be read and written by reading and writing this variable area. Refer to the Parameter List on page 233 for details on the variable area for the G3PW. Refer to the G3PW Power Controller User's Manual (Cat. No.
Page 139 G3PW main setting acquisition number on the G3PW. By setting the communications main setting acquisition number from 1 to 8, the MV for the set number can be acquired from among the sent MVs, and the corresponding output can be made.
Page 140: Advanced Unit (Hfu) Functions
HFU Internal Buses ........
Page 141: Programless Communications
Using programless communications enables monitoring and changing set- tings for the EJ1 by simply reading and writing to PLC memory. The EJ1 auto- matically performs communications with PLCs so no time-consuming communications programming is required.
Page 142: Checking Operation
QnAS-compatible A1SJ71QC24N RS-232C RS-422/485 Serial Communica- A1SJ71QC24N-R2 RS-232C RS-232C tions Unit Note Direct connections to the EJ1 are possible only with RS-232C or RS-422. MELSEC-An/AnS Series V1.1 Name Model Communications port An-compatible Com- AJ71UC24 RS-232C or RS-422/485 puter Link Unit...
Page 143 ) to pins 6 and 7 on the EDU port B if there are problems with communications noise resistance. Note Refer to Related Manuals on page xiv for the operating methods for SYSMAC CS/CJ-series CPU Units and Serial Communications Boards/Units.
Page 144 (2) When using a communications port on the CPU Unit, start the CX-Pro- grammer and set the Host Link port settings in the PLC Settings as fol- lows: Mode: NT Link (1: N), Baud rate: 115,200. Be sure to transfer the settings to the PLC.
Page 145 PLC memory are not otherwise used in the program or by other devices. 4. Check operation. Turn OFF the power to the EJ1 and PLC and then turn the power back ON. It does not matter which one is turned ON first. Refer to the following information and check the operation.
Page 146 3. Confirm that the Setting Change Response Bits (D00001) have been set to 0001. 4. Use the CX-Thermo Support Software to confirm that the EJ1 channel 1 and channel 2 set points have changed to 100. To check operation again, set D01501 to 0000 and once D00001 has changed to 0000 repeat the procedure from step 1.
Page 147 Turn ON pin 8 of SW2 to set RS-232C. • RS-422 EJ1N-HFU@-NFL2 MELSEC-Q/QnA/QnAS-series PLC RS-422 Signal Signal Shield SDB+ RDB+ RDB(+) SDB(+) RDA( ) RS-422 SDA( ) • Refer to the user’s manual if using a Communications Module for the QnA/QnAS Series.
Page 148 CH1 and Note (1) To set a different baud rate from that given above, refer to Baud Rate Set- ting on page 136 and change 0B. (2) Refer to MELSEC-QnA/QnAS Series on page 136 if using a Communi- cations Module for the QnA/QnAS Series.
Page 149 Set Value B 4. Check operation. Turn OFF the power to the EJ1 and PLC and then turn the power back ON. It does not matter which one is turned ON first. Refer to the following infor- mation and check the operation.
Page 150 Check the following items if the operation is incorrect. • Are the wiring and settings correct? • Was the power turned OFF once the EJ1 and PLC settings had been completed? (The EJ1 settings are enabled only after the EJ1 is reset.) •...
Page 151 Pins 7 and 8 do not need to be connected for the FX3UC. Turn ON pin 8 of SW2 to set RS-232C. • When using an An/AnS PLC, disable checking the RS-232C CD terminal at buffer memory address 10BH. Setting Example H10B...
Page 152 Note (1) This setting is not used on the A1SJ71UC24-R2 or A1SJ71UC24-PRF. (2) If any other settings are used, change the setting for the EJ1 to the same settings. (3) Refer to the user’s manual for the PLC for setting methods.
Page 153 Station Timeout time 1 (default) Note (1) If any other settings are used, change the setting for the EJ1 to the same settings. (2) Refer to the user's manual for the PLC for setting methods. 3. Make the EJ1 settings.
Page 154: Detailed Settings
Programless Communications 5-1-3 Detailed Settings Link Data Settings Link data settings are made to set which EJ1 values to monitor or change. • Monitor The parameters to be monitored are set under Programless Upload Set- tings. The HFU collects monitor values based on these settings for the Units con- nected to the HFU and transfers the values to PLC memory.
Page 155 Section 5-1 Programless Communications • The following parameters can be set. Up to 300 settings can be made for version V1.0, up to 600 settings can be made for version , and up to V1.1 1,200 settings can be made for version V1.2...
Page 156 Error Status 1 15 14 13 12 11 10 9 Error Status 2 31 30 29 28 27 26 25 24 23 22 21 20 19 18 17 16 The bit corresponding to the unit number will turn ON if an error occurred in communications during programless downloading or programless uploading.
Page 157 Reset the EJ1 to enable settings. ■ Programless Communications Upload/Download Data Area (Variable Type: F0/B0) Used to set the area in PLC memory that will be allocated to the parameters set with the Programless Upload/Download Settings. Set this parameter according to the Programless Communications Protocol.
Page 158 (2) Reset the EJ1 to enable settings. ■ Programless Communications Upload/Download Start Address (Variable Type: F0/B0) Used to set the start address in the memory area set as the Programless Communications Upload/Download Data Area for the parameters set as the Programless Upload/Download Settings.
Page 159 Section 5-1 Programless Communications Note (1) Make sure the same address is not allocated in both the Programless Up- load Settings and Programless Download Settings. (2) Reset the EJ1 to enable settings. (3) The ranges of registers that can be used are different for the An-series, AnS-series, and FX3UC-series PLCs.
Page 160 Operation with SYSMAC CS/CJ Series PLCs on page 117. MELSEC-Q Series The settings are the same as made when checking operation. Make settings based on the following table if the baud rate or transmission settings need to be changed. Channel...
Page 161 115.2 kbps (See note.) Note If both channel 1 and channel 2 are used, make sure that the total baud rate for both channels is 115.2 kbps or less. Note (a) If settings other than those listed above are made, make the same settings on the EJ1.
Page 162: Description Of Operation
Example: Changing a Single Action to a Multi Action 1,2,3... 1. For a single action, the Response Bits are set to the single action value, 0001. Note The Request Bits cannot be changed directly to 0002 because the setting will not be accepted.
Page 163 1. The PLC sets the Request Bits. 2. The EJ1 performs a single action. 3. The EJ1 sets the Response Bits to the same value as the Request Bits. 4. The PLC clears the Request Bits. 5. The EJ1 clears the Response Bits.
Page 164 Bits. Operation Procedure Monitor Once the PLC sets the value of the Read Request Bits, the EJ1 writes the value set under Programless Upload Settings to the PLC memory area. • Single Read The parameters set in the Programless Upload Setting are read once.
Page 165 XXXX 3. The EJ1 refreshes the monitor value. When the Read Request Bits are set (step 1), steps 2 and 3 performed automatically. • Read Settings With the normal monitor operation, the value set under Programless Up- load Setting is read to the upload data area in PLC memory. With the Read...
Page 166 If the monitor value has a decimal point, keep the decimal point in mind when handling the monitor value. Example: monitor value 03E8H or 1000 100.0 The set value in the EJ1 will not change even if the monitor value is changed.
Page 167 PLC, bit 15 changes between ON and OFF. Setting Changes To change EJ1 settings from the PLC, first change the values in the Download Area in the PLC memory and then set the Setting Change Request Bits.
Page 168 Section 5-1 Programless Communications • Multi Action The first time, all of the parameters set in the Download Area Setting are changed. Afterwards, changes are made only to parameters for which val- ues have been changed. 2. The EJ1 sets the Setting Change Response Bits.
Page 169 Programless Communications Section 5-1 ■ Set Values • If the set value contains a decimal point, omit the decimal point and set the value. Example: 100.0 1000 or 03E8H: set value • When changing set values, always set a new value within the setting range.
Page 170 Section 5-1 Programless Communications • Multi Operation Commands Initially accepts the operation command set in the operation command code, then accepts operation commands each time the operation com- mand code changes. 2. The Operation Command Response Bits are set by the PLC.
Page 171 Section 5-1 Programless Communications • Single operation instruction (bit specification) V1.2 Executes the bit specification operation commands a single time from among the parameters set in the Download Area Setting. 4. The EJ1 sets the Operation Command Response Bits. Upload Area...
Page 172 Time Check point Meaning Port C Send Wait Time Reduce the setting to reduce the communications wait time, except when the programless communications protocol is NT Link (1: N). Programless Upload/ Reduce the volume of communications data by reducing the Download Settings number of set values.
Page 173: Operation Command Codes For Programless Communications
Manual 3009 Auto 3409 40% AT Execute 3809 100% AT Execute 3C09 AT Cancel 4009 Any unit number between 0 and 31 or all Units can be selected. Any channel between 1 and 4 or all channels can be selected.
Page 174 Section 5-1 Programless Communications Structure of Operation Command Bit position Meaning Codes for All channels specified (1 bit) Programless Related information (2 bits) Communications All Units specified (1 bit) Unit specification (6 bits) Command code (6 bits)
Page 175 (2) 0: According to related information; 1: All channels (3) 00: Backup; 01: RAM (4) 00: Channel 1, 01: Channel 2, 10: Channel 3, 11: Channel 4 (5) 00: Clear, 01: Register Example: Operation Command Code to execute Run for channel 1 of Unit No.
Page 176 Section 5-1 Programless Communications Sample Operation Command Codes for Programless Communications *1: All Units specified. *2: All channels specified. Command Unit No. Channel Operation Command code Unit specification Related code command informa- code tion Channel 1 H' 2810 Channel 2...
Page 177: Bit-Specified Operation Commands
No.5 No.4 No.3 No.2 No.1 No.0 CH2 CH1 CH2 CH1 CH2 CH1 CH2 CH1 CH2 CH1 CH2 CH1 CH2 CH1 CH2 CH1 For TC4 No.3 No.2 No.1 No.0 CH4 CH3 CH2 CH1 CH4 CH3 CH2 CH1 CH4 CH3 CH2 CH1 CH4 CH3 CH2 CH1...
Page 178 ON, AT may start unexpectedly, such as during a system reboot, so make sure to turn OFF the bit when AT finishes or is canceled. The status while AT is executing can be checked using the channel status bit...
Page 179: Programless Communications Errors
• An attempt was made to change a setting for which changes are prohib- ited. Example: An attempt was made to change the SP during autotuning. In the above cases, the Response Bits will be set to the following error values. Bits...
Page 180: Connecting More Than One Hfu V1.1
Set the unit numbers for other HFUs to a number other than 1, for example, 0, 2, 3, 4, 5, 6, or 7. A single HFU can manage a maximum of 32 Basic Units. When connecting 16 or more Basic Units, use distributed placement because 16 would exceed the maximum number of side-by-side connec- tions.
Page 181 Connecting More Than One HFU RS-485 SYSMAC-CS/CJ-series PLC Port 1 RS-485 Unit Unit No. 0 No. 1 Unit Unit No. 7 No. 0 Note Set the unit number of the Basic Unit to any number that was not set for the HFU.
Page 182 F0/B0 Programless Communications Protocol 2: NT Link (1: N) Refer to 5-1-3 Detailed Settings for information on data linked with the PLC. Be sure that the areas of PLC memory used by the different HFUs do not overlap. INCORRECT CORRECT...
Page 183: Melsec-Q/Qna/Qnas-Series Plcs
The communications unit number of the Basic Unit is set to a number from 0 to 31, excluding 1. Set the communications unit number of another HFU to 0, 2, 3, 4, 5, 6, or 7, i.e., any number other than 1. One HFU can control up to 32 Basic Units.
Page 184 Connecting More Than One HFU • RS-422 MELSEC-Q/QnA/QnAS-series PLC RS-422 Unit Unit No. 0 No. 1 Unit Unit No. 7 No. 0 Note Set the unit number of the Basic Unit to any number that was not set for the HFU.
Page 185 5: MC protocol (format 5) Programless Communications Maximum Set the unit number to Unit Number (See note.) one less than the number of HFU units that are connected. Note If three HFUs are connected, set the maximum unit number to 2.
Page 186 Section 5-2 Connecting More Than One HFU Refer to 5-1-3 Detailed Settings for information on data linked with the PLC. Be sure that the areas of PLC memory used by the different HFUs do not overlap. INCORRECT CORRECT PLC Memory PLC Memory HFU No.
Page 187: Hfu Communications Unit No
Connecting More Than One HFU 5-2-3 HFU Communications Unit No. In addition to 0 through 7, 32 through 39 can also be used as HFU communi- cations unit numbers. Setting the communications unit number to 32 through 39 will result in the following improvements.
Page 188 Communications Communications unit No. 32 unit No. 0 unit No. 1 unit No. 14 The communications unit numbers can be assigned in the same configuration, and the Basic Units can be copied in blocks. Communications Communications Communications Communications unit No. 39 unit No.
Page 189: Other Hfu Functions
The Temperature Controller Error output will turn ON when any Controller Error bit between bit 0 and bit 13 is ON in the Device A Status. It can be used to output EJ1 error status. Refer to Status Lists on page 255 for details on Device A Status.
Page 190 EJ1 error status. Refer to Status Lists on page 255 for details on Device A Status. Event inputs 1 to 4 Outputs the ON/OFF status of event input 1 to event input 4. Bus inputs 1 to 3 Outputs the status of bus input 1 to bus input 3.
Page 191 The Temperature Controller Error output will turn ON when any bit between bit 0 and bit 13 is ON in the Device A Status. It can be used to output EJ1 error status. Refer Status Lists on page 255 for details on Device A Status.
Page 192: Compoway/F Communications
Send Data Wait Time ........
Page 193: Communications Settings
For example, references to reading and writing mean reading data from the EJ1 to the host computer and writing data from the host computer to the EJ1.
Page 194: Unit Number Setting
, always keep pin 3 on SW2 turned OFF. V1.2 6-1-2 Unit Number Setting The unit number is set first. The setting is made on SW1 and SW2 on the front of the EJ1. For information on the setting method, refer to 1-1-4 Using Setting Switches. 6-1-3...
Page 195: Frame Configuration
Always set to 02H. Unit No. • Set the unit number that is set on SW1 and SW2 on the EJ1. • Specify “XX” for a broadcast transmission. No responses will be returned for broadcast transmissions. • No responses will be returned from unit numbers other than the ones in the above range.
Page 196 Format error The FINS-mini command text contains characters other than 0 to 9 and A to F. For details on the echoback test, refer to 6-4-10 Echoback Test. SID and the FINS-mini command text are not included. Sub-address error The sub-address is not included.
Page 197: Fins-Mini Text
FINS-mini Text Section 6-3 FINS-mini Text The FINS-mini command and response text is the text that form the command and response communications. 6-3-1 PDU Structure The structure of the FINS-mini command text and FINS-mini response text are described below. Command Text An MRC (main request code) and SRC (sub-request code) followed by the various required data is transferred in the command frame.
Page 198: Communications Data
Note G3ZA set values can be read from the Basic Unit connected to the G3ZA. The Basic Unit has variables for use with the G3ZA. The G3ZA set values can be read and written by reading and writing these variables.
Page 199: Detailed Description Of Services
0000 Normal completion Processing was completed normally. 5. Precautions • “0” is set when an address with no data set is read. • If the start address + number of elements exceeds FFFF, the address returns to 0000.
Page 200: Write To Variable Area
Read-only error An attempt was made to write to a read-only vari- able. 7011 Operation error (7011) The command cannot be executed due to a device error. 7013 Operation error (7013) The command cannot be executed because the operation command cannot be received.
Page 201: Composite Read From Variable Area
Read data type No. of elements 8 or 4 The read data is read together with the variable type, in the order specified in the command. 1. Variable Type and Read Address Refer to Parameter List on page 233. Composite reads cannot be performed for the DA/9A variable types.
Page 202: Composite Write To Variable Area
Detailed Description of Services Section 6-4 6-4-4 Composite Write to Variable Area This service writes in order the contents of specified addresses to a variable area. ■ Command Service Request PDU Variable Write address Write data position type No. of elements...
Page 203: Composite Registration Read
Section 6-4 Detailed Description of Services 6-4-5 Composite Registration Read This service reads in order the contents of addresses specified in a variable area composite read registration. ■ Command Service Request PDU ■ Response Service Response PDU Response Variable Read data...
Page 204: Composite Read Registration
Composite reads/writes cannot be registered for the DA/9A variable types. 2. Bit Position The EJ1 does not support bit access. Fixed to 00. 3. No. of Registered Data Items (Variable Type + Read Address + Bit Posi- tion) Registered data length No.
Page 205: Composite Read Registration Confirmation
Section 6-4 Detailed Description of Services 6-4-7 Composite Read Registration Confirmation This service reads the contents of the registration for a composite read from a variable area. ■ Command Service Request PDU ■ Response Service Response PDU Read address Bit...
Page 206: Controller Attribute Read
2. Buffer Size The communications buffer size is expressed in 2-byte hexadecimal, and read after being converted to 4-byte ASCII. The buffer size is the smaller of the send and receive buffer sizes. 3. Response Codes Response code Error name...
Page 207: Controller Status Read
Section 6-4 Detailed Description of Services 6-4-9 Controller Status Read This service reads the operating status and error status. ■ Command Service Request PDU ■ Response Service Response PDU Related Response Operating Informa- code status tion 1. Operating Status • TC4/TC2...
Page 208: 6-4-10 Echoback Test
Response code Test data 0 to 323 1. Test Data Up to 323 (0143H). The test data must be within the following ranges depending on the com- munications data length. Communications data length Test data 8 bits ASCII H'20 to H'7E and H'A1 to H'FE...
Page 209: Operation Commands
Section 6-4 Detailed Description of Services 6-4-11 Operation Commands The following parameter settings are made using operation commands. • Write Mode • Software Reset • Run • Stop • Manual • Automatic • AT Execute • AT Cancel • Bank 0 Change to •...
Page 210 Description of Operation Commands and Precautions • Write Mode Set either the Port B backup mode or RAM write mode using the related information. (The default is RAM write mode.) When the mode is switched from RAM write mode to backup mode, the settings for the parameters that can be changed during operation are not written to EEPROM.
Page 211 Detailed Description of Services • LSP Change and RSP Change Sets SP Mode (LSP (local SP)/RSP (remote SP). An operation error will occur if autotuning is already being performed for a specified channel. • Reset Error Clears the following errors: heater burnout latch, HS alarm latch, heater overcurrent latch, heater overcurrent, and operation during error (selec- tion B).
Page 212 7016 Operation error The command cannot be executed during (7016) error latch status. 7020 Operation error The command cannot be executed in the cur- (7020) rent control mode. 7021 Operation error The command cannot be executed because (7021) the control switching conditions have not been established.
Page 213 Section 6-4 Detailed Description of Services...
Page 214 Send Data Wait Time ........
Page 215: Communications Settings
For example, references to reading and writing mean reading data from the EJ1 to the host computer and writing data from the host computer to the EJ1.
Page 216: Unit Number Setting
1 bit. 7-1-2 Unit Number Setting The unit number is set first. The setting is made on SW1 and SW2 on the front of the EJ1. For information on the setting method, refer to 1-1-4 Using Setting Switches.
Page 217: Frames
1. An initial value of H'FFFF is set in the CRC register. 2. An XOR is taken of the contents of the CRC register and the 1st byte of the message, and the result is returned to the CRC register.
Page 218: Response Frames
Section 7-2 Frames 7. The result (the value in the CRC register) is placed in the lower byte of the message. Example of Appending the Result If the calculated CRC value is H'1234, this is appended as follows to the...
Page 219: Function Codes
Area Multiple variables that are consecutive can be written. Broadcasting is possible. 06 (H'06) Single Write to Variable Writes to a variable area or an opera- Area tion command. Broadcasting is possible. 08 (H'08) Echoback Test Performs an echoback test.
Page 220: Variable Areas
Variable Areas The areas used for data exchange when communicating with the EJ1 are called the variable areas. Present values can be read, and set values can be read and written using the variable areas. Operation commands do not use the variable areas.
Page 221: Detailed Description Of Services
1. Read Start Address Refer to Parameter List on page 233. 2. No. of Elements Specify the number of elements to read. The specification range is from H’0001 to H’0050 (1 to 80 elements). 3. Byte Count The number of bytes of data that was read is returned.
Page 222: Multiple Write To Variable Area
Specify the number of elements to write. The specification range is from H’0001 to H’007F (1 to 127 elements). 3. Byte Count Specify the number of bytes of write data. Each data element is two bytes, so specify two times the number of elements. 4. Response Codes...
Page 223: Single Write To Variable Area
Response: 01 10 0240 0001 01A5 (CRC-16) 7-5-3 Single Write to Variable Area This service either writes data to the variable area or executes one of the operation commands given in the table in 2. Write Data, below. Command Function...
Page 224 (2) Performing set value initialization will initialize the port B communications protocol to 0: CompoWay/F. If you do not want to change the protocol, turn ON No. 3 of SW2. The protocol will be set to Modbus regardless of the port B communications protocol setting.
Page 225 Detailed Description of Services 3. Response Codes The following response codes are for operation commands. For the re- sponse codes for writing to the variable area, refer to the response codes under 7-5-2 Multiple Write to Variable Area. Function Error...
Page 226: Echoback Test
Cause code code H’88 H’01 Function code error A function code that is not supported was specified. H’03 Variable data error • The command is too long. • The command is not long enough. • The fixed data was not H’0000.
Page 227 Section 7-5 Detailed Description of Services...
Page 228: Errors And Error Processing
Heater Burnout Alarm Errors ........
Page 229: Things To Check First
Check the EJ1 status. Find the cause of the error based on the data read by the EJ1, then correct the error. Determine the error from the current situation. If the cause of the error is still not clear after checking all these items, infer the cause from the current situation and try countermeasures.
Page 230: Determining Errors From Indicators
The following table shows indicator status, possible error causes, and coun- termeasures. With a version TC4/TC2, when No. 6 of SW2 is turned ON, the opera- V1.2 tion indicator will display the output status. Always turn OFF No. 6 of SW2 for confirmation. Status Possible causes Countermeasure There is no power supply.
Page 231 There is an input error or a Check the wiring for the input or remote SP remote SP input error. input to be sure it is wired correctly, not broken, and not shorted. Also check the input type. An error has occurred for which...
Page 232: Determining The Error From The Status
The EJ1 status can be checked by using communications to read the Status. Status is connected to other status data in a directory tree, so the cause of the error can be checked or the channels for which there are alarms can be inves- tigated by searching through the directory tree for the related status.
Page 233 Device Status B 0401 Channel Status - CH4 Not used. 0402 Channel Alarm Status - CH4 0020 Version 0403 Internal Set Point - CH4 Note Refer to Status Lists on page 255 for information on bit data and details for individual statuses.
Page 234 Bits 12 to 15: Not used. Bit 1 * Error Channel A Status bits will not Bit 2 turn ON even if a bit between bit 0 and bit 3 in the Channel Status is ON. Bit 3 Bits 4 to 7: Not used.
Page 235 Section 8-3 Determining the Error from the Status Bits 8 to 9: Not used. Bit 10 I/O Error I/O Error Status C4/84 0005 Bit 0 Main Input 1 Count Error Bit 1 Main Input 2 Count Error Bit 2 Main Input 3 Count Error...
Page 236 Determining the Error from the Status Section 8-3 Output Status C4/84 0012 Bit 0 Control Output 1 Bit 1 Control Output 2 Bit 2 Control Output 3 Bit 3 Control Output 4 Bits 4 to 7: Not used. Bits 8 to 11: Not used.
Page 237: Determining The Error From The Current Situation For Communications Errors
Determining the Error from the Current Situation for Communications Errors Section 8-4 Determining the Error from the Current Situation for Communications Errors This section provides troubleshooting information for communications errors. CX-Thermo Support No Communications between the CX-Thermo Support Software and the EJ1...
Page 238 Section 8-4 Determining the Error from the Current Situation for Communications Errors Status Possible cause Countermeasure Cannot connect online There is no power supply to Supply power from the EDU power the EJ1. supply terminal. There is no power supply to...
Page 239 Determining the Error from the Current Situation for Communications Errors Section 8-4 Status Possible cause Countermeasure The EJ1 does not appear in There is no power supply to Supply power from the EDU power the CX-Integrator's Compo- the EJ1. supply terminal.
Page 240 Section 8-4 Determining the Error from the Current Situation for Communications Errors Direct Connection of No Communications Between the EJ1 and a Directly Connected NS-Series NS-series Programmable Terminals Status Possible cause Countermeasure The Smart Active Part (SAP) There is no power supply to...
Page 241 When Using HFUs Connect to port A on the Programmable Terminal. The following restrictions apply: • The HFU cannot be used at the same time as the CX- Thermo Support Software. • The baud rate is fixed at 38.4 kbps.
Page 242 Determining the Error from the Current Situation for Communications Errors Section 8-4 Serial Connection of No Communications Between the EJ1 and the NS-Series PT Using Serial NS-series Connection Programmable Terminals Status Possible cause Countermeasure The Smart Active Part (SAP) There is no power supply to...
Page 243 When Using HFUs Connect to port A on the Serial Communications Unit. The following restrictions apply: • The HFU cannot be used at the same time as the CX- Thermo Support Software. • The baud rate is fixed at 38.4 kbps.
Page 244 Section 8-4 Determining the Error from the Current Situation for Communications Errors Programless No Programless Communications between the PLC and the EJ1 Communications Status Possible cause Countermeasure No communications between There is no power supply to Supply power from the EDU power the PLC and the EJ1.
Page 245 EJ1 were connected to a G3ZA. Confirm with the table above while replacing references of G3ZA with G3PW. However, if the baud rate is not the same, set the baud rate at the initial setting level for the G3PW to 3: 57.6 kbps, and reset the EJ1.
Page 246: Determining The Error From The Current Situation For Temperature Measurement Errors
Platinum resistance thermometers: 1. Connect a 100 resistor between thermometer input terminals A and B and short B and B. 2. The EJ1 is working if the measured temperature is 0.0 C or 32.0 F. Thermocouples: 1. Short the thermometer input terminals.
Page 247: Determining The Error From The Current Situation For Temperature Control Errors
Operation After Power ON is set to STOP status. • Set RUN/STOP to RUN. • To change to RUN the next time the power is turned ON, set Operation After Power ON to Continue and turn OFF the power while in RUN mode.
Page 248 The overlap band in the heating and cooling control is set to • Set to an overlap band. a dead band by mistake. Hunting The troubleshooting items for connection and setting problems are the same as for overshooting and under- shooting, above. Possible cause Countermeasure Procedure The heater's heating capacity is too large for the heating •...
Page 249: Determining The Error From The Current Situation For Output Errors
• Set the correct bank. A bank specification for all channels has been assigned to • Assign the bank of the channel for which the bank is to be an event input, and an unintended bank has been selected. changed to an event input.
Page 250: Determining The Error From The Current Situation For Heater Burnout Alarm Errors
• Set the control output ON time to 100 ms or more. This will make the HB alarm operate. The HB alarm is not assigned to a control output or bus out- • Assign an HB alarm to a control output or bus output.
Page 251 Section 8-8 Determining the Error from the Current Situation for Heater Burnout Alarm Errors...
Page 252: Appendix
Characteristics ........
Page 253: Specifications
Current input 4 to 20 mA, 0 to 20 mA (input impedance: 150 max.) input Voltage input 1 to 5 V, 0 to 5 V, 0 to 10 V (input impedance: 1 M min.) --- Control outputs Voltage output Output voltage: 12 VDC...
Page 254: Characteristics
Detection is also sometimes not possible if a contactor is used for the control output. (2) A heater short is not detected if the control output (heating) OFF time is 100 ms or less. Detection is also sometimes not possible if a contactor is used for the control output.
Page 255: Current Transformer
1,000 VAC for 1 min Vibration resistance 50 Hz, 98 m/s Weight Approx. 11.5 g Approx. 50 g Accessories None Armatures (2), plugs (2) Note The maximum continuous current of the EJ1 is 100 A. Dimensions E54-CT1 E54-CT3 2.36 dia.
Page 256: Ascii Table
Appendix ASCII Table ASCII Table Leftmost digit Rightmost digit SPACE ‘ ‘ & ‘ < >...
Page 257: Sensor Input Ranges
2340.0 • Applicable standards by input type are as follows: K,J,T,E,N,R,S,B: JIS C1602-1995 Fe-CuNi, DIN43710-1985 Cu-CuNi, DIN43710-1985 W5Re/W26Re, ASTM E988-1990 PLII: According to Platinel II Electromotive Force Table by Engelhard Corp. JPt100: JIS C1604-1989, JIS C1606-1989 Pt100: JIS C1604-1997, IEC751...
Page 258: Parameter List
Parameter List If variables without parentheses are used in communications, the set values will be eight-digit (double-word) data. If variables with parentheses are used in communications, the set values will be four-digit (word) data. Example: Variable type C4: Double word (8 digits)
Page 259 H' FFFFF831 to H' 0000270F ( 1999 to 9999) (See note 2.) --- ● 0005 Alarm Upper Limit Value 1 - CH1 H' FFFFF831 to H' 0000270F ( 1999 to 9999) (See note 2.) --- ● 0006 Alarm Lower Limit Value 1 - CH1 H' FFFFF831 to H' 0000270F ( 1999 to 9999) (See note 2.) --- ●...
Page 260 E500 G3ZA6 - CH1 Control Variable Monitor 0700 E600 G3ZA7 - CH1 Control Variable Monitor 0800 E700 G3ZA8 - CH1 Control Variable Monitor Note For details on G3ZA functions, refer to the G3ZA Multi-channel Power Controller User's Manual (Cat. No.Z200).
Page 261 (1) The decimal point position is determined by the sensor selection. (2) The decimal point position is determined by the sensor selection. In this case, however, the 0 (****) decimal point position setting will be treated as a setting of 1 (***.*).
Page 262 H' FFFFF831 to H' 0000270F ( 1999 to 9999) (See note 1.) BANK ● 010E 026E Bank 1 Alarm Upper Limit Value 1 - CH1 H' FFFFF831 to H' 0000270F ( 1999 to 9999) (See note 1.) BANK ● 010F 026F Bank 1 Alarm Lower Limit Value 1 - CH1 H' FFFFF831 to H' 0000270F ( 1999 to 9999) (See note 1.)
Page 263 H' FFFFF831 to H' 0000270F ( 1999 to 9999) (See note 1.) 0 BANK ● 010E 028E Bank 2 Alarm Upper Limit Value 1 - CH1 H' FFFFF831 to H' 0000270F ( 1999 to 9999) (See note 1.) 0 BANK ● 010F 028F Bank 2 Alarm Lower Limit Value 1 - CH1 H' FFFFF831 to H' 0000270F ( 1999 to 9999) (See note 1.) 0...
Page 264 H' FFFFF831 to H' 0000270F ( 1999 to 9999) (See note 1.) 0 BANK ● 010E 02AE Bank 3 Alarm Upper Limit Value 1 - CH1 H' FFFFF831 to H' 0000270F ( 1999 to 9999) (See note 1.) 0 BANK ● 010F 02AF Bank 3 Alarm Lower Limit Value 1 - CH1 H' FFFFF831 to H' 0000270F ( 1999 to 9999) (See note 1.) 0...
Page 265 H' 00000000 to H' 0000270F (0.0 to 999.9) 40.0 BANK ● 0104 02C4 Present Bank SP Ramp Rise Value - CH1 H' 00000000 to H' 0000270F (0 to 9999) (See note 1.) EU/s or BANK (Function stops when set to 0.) EU/min BANK ●...
Page 266 (1) The decimal point position is determined by the sensor selection. (2) The decimal point position is determined by the sensor selection. In this case, however, the 0 (****) decimal point position setting will be treated as a setting of 1 (***.*).
Page 267 --- (---) 00FF V1.2 Note (1) Parameters with the following mark are supported only by version 1.1 Temperature Controllers: V1.1 Refer to Functional Upgrades on page xxvi for details on upgraded functionality..Can only be used by improved models.
Page 268 H' 00000000 to H' 000000A5 (0 to 165) Value ● 0120 F020 G3ZA1 - CH1 Heater Overcurrent Detection Value H' 00000000 to H' 00000032 (0 to 50) ● G3ZA1 - CT1 Heater Overcurrent Detec- H' 00000000 to H' 000000A5 (0 to 165) tion Value ●...
Page 269 H' 00000000 H' 00000672 (0.0 to 165.0) ● 014C F04C G3ZA1 - CT1 Heater ON Current Monitor H' 00000000 to H' 000000A5 (0 to 165) ● 014D F04D G3ZA1 - CT2 Heater ON Current Monitor H' 00000000 to H' 000000A5 (0 to 165) ●...
Page 270 G3ZA8 - CH1 Slope Note (1) Valid after a Software Reset operation command or after power is turned ON. Refer to the G3ZA Multi-channel Power Controller User’s Manual (Cat. No. Z200). (2) Parameters with the following mark are supported only by version 2 G3ZA Power Controllers: Refer to the G3ZA Multi-channel Power Controller User’s Manual (Cat.
Page 271 H' 00000000: Linear Input (0) H' 00000001: Voltage ON/OFF Input (1) ● 0189 F089 G3PW1-Main Setting Automatic Input Selec- H' 00000000: 4 to 20 mA or 1 to 5 V (0) tion H' 00000001: Communications (1) ● 018A F08A G3PW1-Main Setting Manual Input Selection...
Page 272 H' 00000000: C (0) H' 00000001: F (1) ● 0102 0322 Scaling Upper Limit - CH1 H' FFFFF831 to H' 0000270F ( 1999 to 9999) 1000 ● 0103 0323 Scaling Lower Limit - CH1 H' FFFFF831 to H' 0000270F ( 1999 to 9999) ●...
Page 273 TC4: 111 TC2: 32 0400 0940 Control Output 4 Assignment TC4: 143 TC2: 64 Note Parameters with the following mark are supported only by version 1.1 Temperature Controllers: V1.1 Refer to Functional Upgrades on page xxvi for details on upgraded functionality.
Page 274 0400 0960 Alarm 1 Type - CH4 Note The decimal point position is determined by the sensor selection. In this case, however, the 0 (****) dec- imal point position setting will be treated as a setting of 1 (***.*). Variable...
Page 275 Note: The SP Tracking - CH4 parameter cannot be used. Note The decimal point position is determined by the sensor selection. In this case, however, the 0 (****) dec- imal point position setting will be treated as a setting of 1 (***.*).
Page 276 V1.1 H' 00000001: Modbus (1) Common ● ● 0021 A221 Port B Communications Baud Rate (TC4/TC2) Not used. H' 00000003: 9.6 (3) H' 00000004: 19.2 (4) Port C Communications Baud Rate (HFU) H' 00000005: 38.4 (5) H' 00000006: 57.6 (6) H' 00000007: 115.2 (7) (kbps)
Page 277 Note (1) Not valid when an NT Link is being used. (2) Set the Delay between Outputs parameter to an even number. If an odd number is set, the next smaller even number will be used. (3) Parameters with the following mark are supported only by version 1.1 Temperature Controllers: V1.1...
Page 278 H' 00000023: CH1 Run (0)/Stop (1) (35) H' 00000024: CH1 Auto (0)/Manual (1) (36) H' 00000025: CH1 SP mode (Local (0)/Remote (1)) (37) Not used. H' 00000040: The rest are the same as channel 1. (64) 0001 A401 Event Input 2 Assignment The rest are the same as Event Input 1 Assignment.
Page 279 H' 00000037: CH1 SP mode (Local (0)/Remote (1)) (55) Not used. H' 00000040: Channel 2: The same as channel 1. (64) H' 00000060: Channel 3: The same as channel 1. (96) H' 00000080: Channel 4: The same as channel 1. (128)
Page 280: Status Lists
(1) The values are displayed as follows: CT1 = channel 1 and CT2 = channel 2. (2) The values are displayed as follows: OUT1 = channel 1, OUT2 = channel 2, OUT3 = channel 3, and OUT4 = channel 4.
Page 281 Refer to Basic Unit/Expand Unit Error Status. Bit 12 I/O Alarm No error Error There is an I/O alarm. Refer to I/O Alarm A Status and I/O Alarm B Status. Bit 13 Lower-level I/O Alarm No error Error An alarm has occurred in the connected G3ZA.
Page 282 There is an error in communications with the G3ZA. Bit 4 Expand Unit Connec- No error Error A communications response has not been received tion Fault from a G3ZA after it was registered in the configura- tion. Bit 5 Not used. Bit 6 Not used. Bit 7 Not used.
Page 283 Not used. Bit 9 Not used. Bit 10 Not used. Bit 11 Not used. Bit 12 Not used. Bit 13 Not used. Bit 14 Not used. Bit 15 Not used. Note The above information also applies to the G3PW. V1.1...
Page 284 Not used. Bit 12 Not used. Bit 13 Not used. Bit 14 Not used. Bit 15 Not used. Note The above information also applies to the G3PW. V1.1 I/O Error Status C4/84 0005 Bit position Status Bit description Meaning Bit 0...
Page 285 Status Bit description Meaning Bit 0 CT1 Heater Overcurrent No error Error The heater current 1 value exceeds 110.0 A. Bit 1 CT2 Heater Overcurrent No error Error The heater current 2 value exceeds 110.0 A. Bit 2 Not used.
Page 286 CT1 Heater Current Updated Hold The heater current monitor has not been updated Hold because the control output ON time is less than 100 ms. Will also hold when a CT is not connected. Bit 1 Not used. Bit 2 Not used.
Page 287 Bit 11 Not used. Bit 12 Not used. Bit 13 Not used. Bit 14 Not used. Bit 15 Not used. Note The above information also applies to the G3PW. This alarm will also be caused by an SSR open failure. V1.1...
Page 288 Bit 12 Not used. Bit 13 Not used. Bit 14 Not used. Bit 15 Not used. Note Not supported by Temperature Controllers with linear outputs. Device B Status C4/84 0013 Bit position Status Bit description Meaning Bit 0 Save RAM 1...
Page 289 Bit 11 Not used. Bit 12 Set Point Limiter Out of No error Error The set point is outside the set point limiter range. Range Bit 13 Set Value Limiter No error Error The upper and lower set point limits are reversed.
Page 290 Bit 20 Write Mode Backup RAM write Write mode can be confirmed. Bit 21 EEPROM RAM = Can confirm whether or not the setting is registered EEPROM EEPROM in EEPROM. Bit 22 Not used. Bit 23 Not used. Bit 24 Not used.
Page 291 Bit 4 Internal Communica- No error Error There is a programless communications error. tions Error Set when one of the programless error status bits turns ON. The internal communications error status, however, is not set. Bit 5 Not used. Bit 6...
Page 292 Bit 6 Not used. Bit 7 Not used. Bit 8 Illegal Unit Arrangement No error Error A Unit is connected to the left of the HFU. Bit 9 Not used. Bit 10 Not used. Bit 11 Not used. Bit 12 Not used.
Page 293: Parameters That Can Be Allocated For Programless Communications
Appendix Parameters That Can Be Allocated for Programless Communications Parameters That Can Be Allocated for Programless Communications The following table lists the parameters that can be allocated to programless communications. Function Parameter Attribute Upload Download Remarks Common ● Status Device A Status Monitoring only Common ●...
Page 294 Appendix Parameters That Can Be Allocated for Programless Communications Function Parameter Attribute Upload Download Remarks ● ● Control Present Bank Proportional Band BANK ● ● Present Bank Integral Time BANK ● ● Present Bank Derivative Time BANK ● ● Present Bank Manual Reset Value BANK ●...
Page 295 (2) Only parameters G3ZA1 to G3ZA4 can be allocated. (3) The only parameters that can be allocated as G3PW 1 to 4. (4) The only parameters that can be allocated to the HFU are listed under Other. Parameters not listed under Other cannot be allocated.
Page 296: Index
AT calculated gain Write Mode AT hysteresis calculating input shift values auto mode calculating the heater burnout detection current value autotuning (AT) calculating the heater overcurrent detection value auxiliary output allocations calculating the heater short detection current value ch (Channel)
Page 297 SP Mode Current Transformer characteristics Current Transformer (CT) checking operation CX-Programmer close in alarm closed in alarm or open in alarm command frame D (derivative time) dead band FINS-mini command text decimal point position Device A Status (HFU) Configuration Error...
Page 298 GX Developer disturbance gain disturbance overshoot adjustment function disturbance time constant HB (Heater burnout) driver installation heater burnout alarm (HB alarm) heater overcurrent alarm (OC alarm) heater short alarm (HS alarm) echoback test heating/cooling control EEPROM HFU bus output assignments...
Page 299 Expand Unit 2 Communications Error Expand Unit 3 Communications Error Expand Unit 4 Communications Error Expand Unit 5 Communications Error names of parts on front panel Expand Unit 6 Communications Error no response Expand Unit 7 Communications Error NT Link...
Page 300 Linear Output 1/2 Type Bus Input 1 to 3 Assignment Local SP Change Bus Output 1 to 3 Assignment Local SP Monitor Bus Output 1 to Bus Output 3 Assignment LSP Change Cold Junction Compensation Method Manual Control Output 1 Assignment...
Page 301 RSP (Remote SP) Temperature unit Temporary AT Execution Judgment Deviation RT (robust tuning) Unit number Write Mode Write mode parameters that can be allocated for programless communi- xvii cations scaling PID constants screw-less clamp terminals PID settings selecting the control method...
Page 302 Index single write to variable area auxiliary outputs communications slave address control outputs Smart Active Parts (SAP) xvii CT inputs SP (set point) event inputs SP tracking inputs specifications power supply voltage wiring precautions ST Stable Range write to variable area...
Page 303 Index...
Page 304: 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. H142-E1-03 Revision code The following table outlines the changes made to the manual during each revision. Page numbers refer to the previous version.
Page 306 Analog Controller Division Shiokoji Horikawa, Shimogyo-ku, OMRON ASIA PACIFIC PTE. LTD. Kyoto, 600-8530 Japan Tel: (81) 75-344-7080/Fax: (81) 75-344-7149 No. 438A Alexandra Road # 05-05/08 (Lobby 2), 2-2-1 Nishikusatsu, Kusatsu-shi, Alexandra Technopark, Singapore 119967 Shiga, 525-0035 Japan Tel: (65) 6835-3011/Fax: (65) 6835-2711...

Omron EJ1 User Manual

Table of Contents

Section 1 Outline

Outline

Preparations

Section 3 Typical Control Examples

Section 4 Basic Units (Tc4 and Tc2) Functions

Section 5 Advanced Unit (Hfu) Functions

Advanced Unit (HFU) Functions

Connecting more than One HFU V1.1

Section 6 Compoway/F Communications

Section 7 Modbus Communications V1.1

Section 8 Errors and Error Processing

Appendix

Index

Revision History

Quick Links

Chapters

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Summary of Contents for Omron EJ1

Table of Contents