Chroma 19073 - Page 71

RS485 Interface (For Link Model of 19073 + RS485)
5-5
The reading meanings of returning HEX code are as the following:
0xAB = Header
0x70 = Destination Address
0x01 = Source Address
0x16 = Data Field Length
0x90 = Command Code
0x43 0x48 0x52 0x4F 0x4E 0x4D 0x41 = “CHROMA” Company Name (return data)
0x2C = “,” (return data)
0x31 0x39 0x30 0x37 0x33 = “19073” Device Name (return data)
0x2C = “,” (return data)
0x30 = “0” Device S/N (return data)
0x2C = “,” (return data)
0x33 0x2E 0x31 0x31 = “3.11” Firmware Version (return data)
0x2C = ” ,” (return data)
0x30 = ”0“Hold Field (return data)
0x58 = Checksum
Display Address
Description: It displays the device address.
Command code: 0x20
Parameter: None
Return data: Reply Message
Example: Master (0x70): 0xAB 0x01 0x70 0x01 0x20 0x6E
Slave (0x01): 0xAB 0x70 0x01 0x02 0x7F 0x00 0x0E
Descriptions of example
The setting meanings of HEX inputs are as the following:
0xAB = Header
0x01 = Destination Address
0x70 = Source Address
0x01 = Source Address
0x20 = Command Code
0x6E = Checksum
The reading meanings of returning HEX code are as the following:
0xAB = Header
0x70 = Destination Address
0x01 = Source Address
0x02 = Source Address
0x7F = Reply Message Command Code
0x00 = Reply Message Return Data
0x0E = Checksum
Stop
Description: Stop test
Command code: 0x21
Parameter: None
Return data: Reply Message
Example: Master (0x70): 0xAB 0x01 0x70 0x01 0x21 0x6D
Slave (0x01): 0xAB 0x70 0x01 0x02 0x7F 0x00 0x0E