APPENDIX B: MODBUS PROTOCOL B.4 MODBUS DATA
GEK-106310-AF F650 DIGITAL BAY CONTROLLER B-11
CR LF (a line ends)
0x00 0x00 0x30 0x0D 0x0A 0x45 0x56 0x45 0x4E 0x54 0x5F 0x46 0x36 0x35 0x30 0x5F 0x56 0x30 0x30 0x2C 0x33 0x30
0x39 0x38 0x2C 0x30 0x30 0x30 0x30 0x30 0x30 0x31 0x36 0x65 0x62 0x61 0x33 0x33 0x62 0x62 0x38 0x2C 0x43 0x6F
0x6E 0x74 0x61 0x63 0x74 0x20 0x4F 0x75 0x74 0x70 0x75 0x74 0x5F 0x30 0x30 0x5F 0x30 0x30 0x20 0x4F 0x4E 0x2C
0x30 0x2E 0x30 0x30 0x30 0x2C 0x30 0x2E 0x30 0x30 0x30 0x2C 0x30 0x2E 0x30 0x30 0x31 0x2C 0x30 0x2E 0x30 0x30
0x30 0x2C 0x30 0x2E 0x30 0x30 0x31 0x2C 0x30 0x2E 0x30 0x30 0x30 0x2C 0x30 0x2E 0x30 0x30 0x30 0x2C 0x30 0x2E
0x30 0x30 0x30 0x2C 0x30 0x2E 0x30 0x30 0x30 0x2C 0x30 0x2E 0x30 0x30 0x31 0x2C 0x30 0x2E 0x30 0x30 0x32 0x2C
0x30 0x2E 0x30 0x30 0x30 0x2C 0x30 0x2E 0x30 0x30 0x30 0x2C 0x30 0x2E 0x30 0x30 0x31 0x2C 0x30 0x2E 0x30 0x30
0x30 0x2C 0x31 0x2E 0x30 0x30 0x30 0x0D 0x0A 0x45 0x56 0x45 0x4E 0x54 0x5F 0x46 0x36 0x35 0x30 0xDB 0xB4]
B.4.4 Operations
To execute an operation, write the bit corresponding to that operation. For this purpose, there are two memory records
with bits representing operations. These records are 0xAFFE and 0xAFFF.
Each operation is assigned one bit in the register:
Operation 1: bit 0 ‘0xaffe’
Operation 2: bit 1‘0xaffe’
...
Operation 16: bit 15‘0xaffe’
Operation 17: bit 0‘0xafff’
...
Operation 24: bit 7‘0xafff’
The register format is Big Endian; this means that the first byte arriving is the one with more weight. Operations commands
are affected depending on the physical communication channel they use: serial port, ethernet ports, mmi, etc.
Refer to section 4.2.3.2 Command push button on page 4–40.
The operations channels are:
0 - MMI
1 - OPER REMOTE
2 - COM 1- COMMUNICATION
3 - COM 2- COMMUNICATION
4 - RED 1- COMMUNICATION
5 - RED 2- COMMUNICATION
6 - RED 3- COMMUNICATION
7 - RED 4- COMMUNICATION
Example, operation 1 is going to perform:
[0xFE 0x10 0xAF 0xFE 0x00 0x01 0x02 0x00 0x01 0x68 0xB0] ---------> RELAY
PC <--------- [0xFE 0x10 0xAF 0xFE 0x00 0x01 0x55 0x22] (ACK (acknowledge) the operation)
B.4.5 Force outputs of IO boards
To ease and test IO boards' outputs physical wiring, each IO boards' contact outputs can be forced to actuate with this
MODBUS command. Proceed as with a file access (open, write, and close).
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