TECO A510s - Loop Back Test

4-338
Loop back test [08H]
Check the communication between the master and the follower (inverter). The data used can be arbitrary.
ASCII Mode
Command Message Response Message (Normal) Response Message (Error)
3AH STX 3AH STX 3AH STX
30H
Node Address
30H
Node Address
30H
Node Address
31H 31H 31H
30H
Function
30H
Function
38H
Function
38H 38H 38H
30H
Test Code
30H
Test Code
30H
Exception code
30H 30H 33H
30H 30H 30H
LRC CHECK
30H 30H 36H
41H
DATA
41H
DATA
0DH
END
0AH
35H 35H
33H 33H
37H 37H
31H
LRC CHECK
31H
LRC CHECK
42H 42H
0DH
END
0DH
END
0AH 0AH
RTU Mode
Command Message Response Message (Normal) Response Message (Error)
Node Address 01 H Node Address 01H Node Address 01H
Function 08H Function 08H Function 88H
Test Code
High 00H
Test Code
High 00H Exception code 03H
Low 00H Low 00H
CRC-16
High 06H
DATA
High A5H
DATA
High A5H Low 01H
Low 37H Low 37H
CRC-16
High DAH
CRC-16
High DAH
Low 8DH Low 8DH