Omron E5C-T Series - User Manual

186 pages

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H186-E1-05

Digital Temperature Controllers

Programmable Type

Communications Manual

E5@C-T

Communications

Data for CompoWay/F

CompoWay/F Commu-

nications Procedures

Communications

Methods

Communications

Data for Modbus

Programless

Communications

Component

Communications

Modbus Communica-

tions Procedure

Appendices

Index

Main Page

Preface3
Terms and Conditions Agreement4
- Application Considerations5
- Disclaimers5
Safety Precautions6
- Definition of Precautionary Information6
- Symbols6
Precautions for Safe Use9
Trademarks11
Versions12
Revision History13
Sections in this Manual15
- How this Manual Is Organized15
- Related Manuals15
  - Communications Methods15
  - Table of Contents16
Section 1 Communications Methods20
Overview of Communications Methods20
- Introduction20
- Communications Specifications20
- Transmission Procedure21
- Interface21
- Wiring21
- Communications Parameters22
- Communications Parameter Setup22
- Description of Communications Parameters23
  - Compoway/F Communications Procedures25
Section 2 Compoway/F Communications Procedures26
Data Format26
- Command Frame26
- BCC Calculation Example27
- Response Frame27
- Communications Data28
- End Code Example28
Structure of Command Text30
- PDU Structure30
- Area Definitions30
- Type Code (Variable Type)30
- Addresses31
- Number of Elements31
- List of Services (Main Request Codes and Sub-Request Codes)31
Detailed Description of the Services32
- Read Variable Area32
- Write Variable Area33
- Composite Read from Variable Area34
- Composite Write to Variable Area36
- Read Controller Attributes37
- Read Controller Status38
- Echoback Test39
- Operation Command41
Response Code List46
- Communications Data for Compoway/F47
Variable Area (Setting Range) List48
Status and Status 277
Data Format82
- 4-1-1 Command Frame82
- 4-1-2 Response Frame84
- 4-1-3 Error Codes85
Function List86
Variable Area87
Detailed Description of the Services88
- 4-4-1 Variable Read, Multiple88
- 4-4-2 Variable Write, Multiple90
- 4-4-3 Variable Write, Single/Operation Command92
- 4-4-4 Echoback Test94
  - Communications Data for Modbus95
Variable Area (Setting Range) List96
Status115
- Programless Communications117
6-1 Programless Communications119
- Introduction119
- Features119
- Programless Communications119
- Operation for Programless Communications120
- Timing of Turning Power on and off120
- Connectable Plcs121
E5@C-T Controller Setup122
- Protocol Setting122
- Communications Unit No. and Communications Baud Rate123
- Send Data Wait Time123
- Highest Communications Unit no123
- Areas and First Address of Linked Data124
- Receive Data Wait Time126
- Communications Node Number126
- Upload Settings and Download Settings127
- Copying Parameter Settings131
- 6-2-10 Communications Writing134
- 6-2-11 Communications Monitor Parameter135
Controlling Programless Communications136
- Controlling Programless Communications with the Request Flag136
- Response Flag137
- Range of Operation for Programless Communications138
- Operation Command Codes138
- Confirming Operation of Programless Communications138
- Write Mode138
- Troubleshooting139
Connecting to CP-Series Plcs140
- Configuration and Procedure140
- Switch Settings and Wiring141
- PLC Setup141
- E5@C-T Controller Setup144
- Checking Operation146
- E5@C-T Controller Setup151
Connecting to CJ-Series Plcs151
- Configuration and Procedure151
- Switch Settings and Wiring152
- PLC Setup152
- E5@C-T Controller Setup155
- Checking Operation155
Connecting to MELSEC Q-Series Plcs156
- Configuration and Procedure156
- Wiring157
- PLC Setup157
- E5@C-T Controller Setup162
- Checking Operation163
  - Component Communications169
7-1 Component Communications170
- Introduction170
- Component Communications170
- Wiring171
- E5@C-T Controller Setup172
Operation for Component Communications174
Troubleshooting175
- Appendices177
Section a Appendices178
A-1 ASCII List178
A-2 Troubleshooting179
Index181

Questions and Answers:

S
Steven LucasSep 14, 2025
What to do if the SP is being held on my Omron E5C-T?
- R
  Rachel EsparzaSep 14, 2025
  If the SP is being held on your Omron Temperature Controller, check the HOLD indicator. If it is lit, change the Hold parameter to OFF.

Omron E5C-T Series Specifications

General

Mounting Method	Panel Mount
Input Type	Thermocouple, RTD
Control Method	ON/OFF, PID
Display Type	LCD
Output Type	Relay, SSR Drive
Power Supply	100 to 240 VAC, 50/60 Hz; 24 VAC/VDC
Temperature Range	Depends on input type
Dimensions	48 x 48 mm
Setting Resolution	0.1°C or 1°C
Ambient Operating Temperature	0 to 55°C
Ambient Operating Humidity	35 to 85% RH (non-condensing)
Protection Rating	IP66 (front panel)
Weight	Approx. 200 g