ICP DAS USA ICP CON GW-7557 User Manual page 78

Byte 10~13: float Lower sensor limit
Byte 14~17: float Minimum span
Command 15: Read Primary Variable Output Information
Request data bytes: none
Response data bytes: 2+17 = 19
Index format description
Byte 0: uint8 Response code 1
Byte 1: uint8 Response code 2
Byte 2: uint8 Alarm select code
Byte 3: uint8 Transfer function code
Byte 4: uint8 PV range value unit code
Byte 5~8: float Upper range value
Byte 9~12: float Lower range value
Byte 13~16: float Damping value
Byte 17: uint8 Write protect code
Byte 18: uint8 Private label distribution code
Command 16: Read Final Assembly Number
Request data bytes: none
Response data bytes: 2+3 = 5
Index format description
Byte 0: uint8 Response code 1
Byte 1: uint8 Response code 2
Byte 2~4: uint24 Final assembly number (MSB first)
Command 17: Write Message
Request data bytes: 24
Index format description
Byte 0~23: PA24 Message
Response data bytes: 2+24 = 26
Index format description
Byte 0: uint8 Response code 1
Byte 1: uint8 Response code 2
Byte 2~25: PA24 Message
Command 18: Write Tag, Descriptor, Date
Request data bytes: 21
GW-7557 PROFIBUS/HART Gateway User Manual (Version 1.00, Dec/2011) PAGE: 78