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5 Communications Data for Modbus

E5@C Digital Temperature Controllers Communications Manual (H175)

5-2 Status

5

5-2 Status

The status data for Modbus is the same as that for CompoWay/F. Refer to page 3-23.

Table of Contents

Preface3
Terms and Conditions Agreement4
- Application Considerations5
- Disclaimers5
Safety Precautions6
- Definition of Precautionary Information6
- Symbols6
Precautions for Safe Use9
Trademarks12
Versions13
Revision History14
- H175-E114
Sections in this Manual17
- How this Manual Is Organized17
- Related Manuals17
  - Communications Methods17
  - Table of Contents18
Overview of Communications Methods24
- Introduction24
- Communications Specifications24
- Transmission Procedure26
- Interface26
- Wiring27
- Communications Parameters30
- Communications Parameter Setup31
- Description of Communications Parameters32
  - Compoway/F Communications Procedures33
Data Format34
- Command Frame34
- BCC Calculation Example35
- Response Frame35
- Communications Data36
- End Code Example36
Structure of Command Text38
- PDU Structure38
- Area Definitions38
- Type Code (Variable Type)38
- Addresses39
- Number of Elements39
- List of Services (Main Request Codes and Sub-Request Codes)39
Detailed Description of the Services40
- Read Variable Area40
- Write Variable Area41
- Composite Read from Variable Area42
- Composite Write to Variable Area44
- Read Controller Attributes45
- Read Controller Status46
- Echoback Test47
- Operation Command48
Response Code List53
- Communications Data for Compoway/F55
Section 3 Communications Data for Compoway/F56
Variable Area (Setting Range) List56
Status and Status 277
Section 4 Modbus Communications Procedure82
Data Format82
- Command Frame82
- Response Frame84
- Error Codes85
Function List86
Variable Area87
Detailed Description of the Functions88
- Variable Read, Multiple88
- Variable Write, Multiple90
- Variable Write, Single/Operation Command92
- Echoback Test95
  - Communications Data for Modbus97
Section 5 Communications Data for Modbus98
Variable Area (Setting Range) List98
Status113
- Programless Communications115
6-1 Programless Communications117
- Introduction117
- Features117
- Programless Communications117
- Operation for Programless Communications118
- Timing of Turning Power on and off118
- Connectable Plcs119
E5C Setup121
- Protocol Setting121
- Communications Unit No. and Communications Baud Rate122
- Send Data Wait Time122
- Highest Communications Unit no122
- Areas and First Address of Linked Data123
- Receive Data Wait Time125
- Communications Node Number125
- Upload Settings and Download Settings126
- Copying Parameter Settings128
- Communications Writing130
- Communications Monitor Parameter131
Controlling Programless Communications132
- Controlling Programless Communications with the Request Flag132
- Response Flag133
- Range of Operation for Programless Communications134
- Operation Command Codes134
- Confirming Operation of Programless Communications134
- Write Mode135
- Troubleshooting135
Connecting to CP-Series Plcs136
- Configuration and Procedure136
- Switch Settings and Wiring137
- PLC Setup137
- E5@C Controller Setup140
- Checking Operation142
Connecting to CJ-Series Plcs147
- Configuration and Procedure147
- Switch Settings and Wiring148
- PLC Setup148
- E5@C Controller Setup151
- Checking Operation151
Connecting to the NX1P2152
- Configuration and Procedure152
- Switch Settings and Wiring153
- PLC Setup153
- E5@C Controller Setup157
- Checking Operation157
Connecting to NJ-Series Plcs163
- Configuration and Procedure163
- Switch Settings and Wiring164
- PLC Setup164
- E5@C Controller Setup167
- Checking Operation167
Connecting to MELSEC Q-Series Plcs168
- Configuration and Procedure168
- Wiring169
- PLC Setup169
- E5@C Controller Setup174
- Checking Operation175
Connecting to MELSEC-FX-Series Plcs180
- Configuration and Procedure180
- Wiring181
- PLC Setup181
- E5@C Controller Setup186
- Checking Operation186
Connecting to MELSEC Iq-R-Series Plcs187
- Configuration and Procedure187
- Wiring188
- PLC Setup189
- E5@C Controller Setup195
- Checking Operation196
Connecting to Keyence KV-Series Plcs201
- Configuration and Procedure201
- Wiring202
- PLC Setup202
- E5@C Controller Setup203
- Checking Operation203
- Component Communications207
7-1 Component Communications208
- Introduction208
- Wiring208
- E5@C Setup209
Operation for Component Communications212
Troubleshooting213
Section a Appendices215
- Appendices215
A-1 ASCII List215
Troubleshooting217
Index219

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