CAI 700M - Page 190

700M HFID 6-2-15
190
Code 06
This function code is used to write a single holding register in a remote device. The Request
PDU specifies the address of the register to be written. Registers are addressed starting at zero.
Therefore the register numbered 1 is addressed as 0.
The normal response is an echo of the request, returned after the register contents have been
written.
Request
Function Code
1 Byte
0x06
Output Address
2 Bytes
0x0000 to 0xFFFF
Output Value
2 Bytes
0x0000 to 0xFFFF
Response
Function Code
1 Byte
0x06
Output Address
2 Bytes
0x0000 to 0xFFFF
Input Registers
2 Bytes
0x0000 to 0xFF00
Error
Error Code
1 Byte
0x86
Exception Code
1 Byte
01 or 02 or 03 or 04