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Byte 6 ~ 7
Byte 0
Byte 1
Error
Response
Byte 2
Byte 3 ~ 4
Sending the SMS (Function Code 5)
Byte 0
Byte 1
Command
Byte 2 ~ 3
Byte 4 ~ 5
Byte 6 ~ 7
Byte 0
Byte 1
Correct
Byte 2 ~ 3
Response
Byte 4 ~ 5
Byte 6 ~ 7
Byte 0
Byte 1
Error
Response
Byte 2
Byte 3 ~ 4
CRC-16 check code
The Modbus Address of the SMS-531
= 0x90
Error Code
02: The SMS-531 is sending the SMS. The content of
the SMS is unchangeable.
CRC-16 check code
The Modbus Address of the SMS-531
Function Code = 0x05
= 0x0080
= 0xFF00
CRC-16 check code
The Modbus Address of the SMS-531
Function Code = 0x05
= 0x0080
= 0xFF00
CRC-16 check code
The Modbus Address of the SMS-531
= 0x85
Error Code:
06: Sending buffer overflow or the SMS is sending
CRC-16 check code
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SMS-531 User's Manual v1.1
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