Lrc Check; End; Exception Code; Rtu Mode - TECO A510s Series Instruction Manual

Loop back test [08H]
Check the communication between the master and the follower (inverter). The data used can be arbitrary.
ASCII Mode
Command Message
3AH STX
30H
Node Address
31H
30H
Function
38H
30H
30H
Test Code
30H
30H
41H
35H DATA
33H
37H
31H

LRC CHECK

42H
0DH

END

0AH

RTU Mode

Command Message
Node Address 01 H
Function
High
Test Code
Low
High A5H
DATA
Low
High DAH
CRC-16
Low 8DH
Response Message (Normal)
3AH
30H
31H
30H
38H
30H
30H
30H
30H
41H
35H
33H
37H
31H
42H
0DH
0AH
Response Message (Normal)
Node Address
08H Function
00H
Test Code
00H
DATA
37H
CRC-16
STX
Node Address
Function
Test Code
DATA
LRC CHECK
END
01H
08H
High 00H
Low 00H
High A5H
Low 37H
High DAH
Low 8DH
4-394
Response Message (Error)
3AH STX
30H
Node Address
31H
38H
Function
38H
30H

Exception code

33H
30H
LRC CHECK
36H
0DH
END
0AH
Response Message (Error)
Node Address 01H
Function 88H
Exception code 03H
High 06H
CRC-16
Low 01H