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Modbus: Interoperability
1. Physical and Data Link Layer
- RS485(EIA/TIA-485) 2-wire interface
- RTU mode only
- Coding System:
8
–
bit binary (1 start bit, 8 data bits, 1 parity bit, 1 stop bit)
Even parity
- Address setting range: 1-247
- Baud rate setting range: 9600 or 19200
2. Application Layer
(1) Modbus response format
FC Description
Supplementary explanation
01 Read Coils
Returns remote control enable flag
02 Read Discrete Inputs
Returns BIs or LED lamp status, etc.
03 Read Holding Registers
-
04 Read Input Register
Returns value of analog inputs
05 Write Single Coil
Remote command and Time synchronization
06 Write Single Register
Need to specify record number
07 Read Exception status
Returns relay and CB status
08 Diagnostic
-
16 Write Multiple Registers
Current time setting, etc.
17 Report Slave ID
Returns device ID
43 Read device Identification (SC:14)
Returns device information
For FC=01, 02, 03, 04, 05, 06 and 16, the response format is the same as described in "MODBUS
Application Protocol Specification V1.1b".
For other FCs, the response format is as following:
07 Read Exception status
Response Data
Output Data (1byte)
bit Description
0 IN SERVICE (LED)
1 TRIP (LED)
2 ALARM (LED)
3 Testing (LED)
4 Prog. LED1 (LED)
5 Prog. LED2 (LED)
6 Prog. LED3 (LED)
7 Relay fail output (BO)
Содержание GRT100 Series
Страница 55: ... 54 6 F 2 S 0 7 8 9 TRANSFORMER PROTECTION GRT100 Operation keys 101B 21 11 Figure 3 1 9 Front Panel ...
Страница 142: ... 141 6 F 2 S 0 7 8 9 Appendix A Block Diagram ...
Страница 144: ... 143 6 F 2 S 0 7 8 9 Appendix B Signal List ...
Страница 159: ... 158 6 F 2 S 0 7 8 9 ...
Страница 160: ... 159 6 F 2 S 0 7 8 9 Appendix C Variable Timer List ...
Страница 162: ... 161 6 F 2 S 0 7 8 9 Appendix D Binary Output Default Setting List ...
Страница 165: ... 164 6 F 2 S 0 7 8 9 ...
Страница 166: ... 165 6 F 2 S 0 7 8 9 Appendix E Details of Relay Menu and LCD and Button Operation ...
Страница 174: ... 173 6 F 2 S 0 7 8 9 Appendix F Case Outline Flush Mount Type Rack Mount Type ...
Страница 179: ... 178 6 F 2 S 0 7 8 9 ...
Страница 180: ... 179 6 F 2 S 0 7 8 9 Appendix G External Connections ...
Страница 185: ... 184 6 F 2 S 0 7 8 9 ...
Страница 200: ... 199 6 F 2 S 0 7 8 9 ...
Страница 201: ... 200 6 F 2 S 0 7 8 9 Appendix J Return Repair Form ...
Страница 205: ... 204 6 F 2 S 0 7 8 9 Customer Name Company Name Address Telephone No Facsimile No Signature ...
Страница 206: ... 205 6 F 2 S 0 7 8 9 ...
Страница 207: ... 206 6 F 2 S 0 7 8 9 Appendix K Technical Data ...
Страница 220: ... 219 6 F 2 S 0 7 8 9 ...
Страница 221: ... 220 6 F 2 S 0 7 8 9 Appendix M Symbols Used in Scheme Logic ...
Страница 224: ... 223 6 F 2 S 0 7 8 9 ...
Страница 225: ... 224 6 F 2 S 0 7 8 9 Appendix N Implementation of Thermal Model to IEC60255 8 ...
Страница 228: ... 227 6 F 2 S 0 7 8 9 ...
Страница 229: ... 228 6 F 2 S 0 7 8 9 Appendix O IEC60870 5 103 Interoperability and Troubleshooting ...
Страница 241: ... 240 6 F 2 S 0 7 8 9 Appendix P Modbus Interoperability ...
Страница 255: ... 254 6 F 2 S 0 7 8 9 ...
Страница 256: ... 255 6 F 2 S 0 7 8 9 Appendix Q Inverse Time Characteristics ...
Страница 259: ... 258 6 F 2 S 0 7 8 9 ...
Страница 260: ... 259 6 F 2 S 0 7 8 9 Appendix R Failed Module Tracing and Replacement ...
Страница 266: ... 265 6 F 2 S 0 7 8 9 Appendix S Ordering ...
Страница 269: ... 268 6 F 2 S 0 7 8 9 3 1 Oct 2 2017 Republished under spin off company ...
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