Zener MSC-3 - Modbus Function Code Details (Write Operations); Function Code 15: Write Multiple Coils; Function Code 16: Write Multiple Holding Registers; Function Code 43: Read Device Identification

IM00120
129
IM00120
MSC-3 Instruction Manual
Request:
Function code 1 byte 15
Starting address 2 bytes 0 to 4
Quantity of outputs 2 bytes 1 to 5
Byte count 1 byte 1
Output value 1 byte
Response:
Function code 1 byte 15
Starting address 2 bytes 0 to 4
Quantity of outputs 2 bytes 1 to 5
Error:
Function code 1 byte 143 (128+function code, 0x8F)
Exception code 1 byte 1, 2 or 3
Function Code 16: Write Multiple Holding Registers
Request:
Function code 1 byte 16
Starting address 2 bytes 0 to 9
Quantity of registers 2 bytes 1 to 10
Byte count 1 byte 2 x (Quantity of registers)
Register value 2 x (Quantity of registers)
Response:
Function code 1 byte 16
Starting address 2 bytes 0 to 9
Quantity of registers 2 bytes 1 to 10
Error:
Function code 1 byte 144 (128+function code, 0x90)
Exception code 1 byte 1, 2 or 3
Function Code 43: Read device identication, Sub Code 14
Request:
Function code 1 byte 43
MEI
1
type 1 byte 14
Read device ID code 1 byte
Object ID 1 byte