ABB REF601 CEI - Page 82

1MDU07205-YN rev. F
REF601 CEI
User’s manual
82
7.4.5 Function Code: 08 (Diagnostics - Loop back message)
Echoes received query message. Message can be any length from 4 to 16 bytes.
Slave
Address
Function
Code
Any data, length limited from 4 to 16
bytes
CRC CRC
01 08 01 02 03 04 CRC CRC
Request
Response
Slave
Address
Function
Code
Any data, length limited from 4 to 16
bytes
CRC CRC
01 08 01 02 03 04 CRC CRC
7.4.6 Function Code: 70 ( 46h ) (Read Module settings)
This function code is used to read the settings of the module. The following sub-
function codes are supported.
Sub-function Code Description
01 Read the module address
02 Read the communication settings – Baud rate
03 Read the communication settings – Parity
Serial Communication