Samwontech TEMP2500 Communications Manual

SAMWONTECH
1th Edition of TEMP2000_Series IM : Dec. 15. 2008 Page 22 / 63
6.5 Function code - 08
Function code-08 is used to test loopback for self-diagnosis.
▣ Request Message Frame
Factor ASCII RTU
Protocol Header :(Colon) -
Slave Address 2 characters 8-Bit
Function code-08
2 characters
8-Bit
Diagnosis code Hi
2 characters
8-Bit
Diagnosis code Lo
2 characters
8-Bit
Data Hi
2 characters
8-Bit
Data Lo
2 characters
8-Bit
Error detecting
2 characters
16-Bit
Protocol Tail 2 characters (CR+LF) -
◈ Exmaple
Request message to test loopback for self-diagnosis should be
- MODBUS ASCII :010800000002F5[cr][lf]
- MODBUS RTU 01080000000261CA
▣ Response Message Frame
Factor ASCII RTU
Protocol Header :(Colon) -
Slave Address 2 characters 8-Bit
Function code-08
2 characters
8-Bit
Diagnosis code Hi
2 characters
8-Bit
Diagnosis code Lo
2 characters
8-Bit
Data Hi
2 characters
8-Bit
Data Lo
2 characters
8-Bit
Error detecting
2 characters
16-Bit
Protocol Tail 2 characters (CR+LF) -
◈ Exmaple
Without any trouble, response message will be.
- MODBUS ASCII :010800000002F5[cr][lf]
- MODBUS RTU 01080000000261CA

Samwontech TEMP2500 Specifications

General

Brand	Samwontech
Model	TEMP2500
Category	Controller
Language	English