Mitsubishi Electric MELSEC IQ-R series Reference Manual page 188

Communication example
Perform the loopback test with the following loopback data.
• Loopback data: 'ABCDE" (5 characters)
■Data communication in ASCII code
(Request data)
Subcommand
0 6 1 9 0
30 36 31 39 30
H H H H H
(Response data)
Number of loopback data
0 0 0 5 A
30 30 30 35 41
H H H H H
■Data communication in binary code
(Request data)
Number of
loopback data
Subcommand
19 06 00 00 05
H H H H H
(Response data)
Number of
Loopback data
loopback data
A B C
05 00 41 42 43
H H H H H
11 CONTROL MODULE OPERATION
186
11.4 Loopback Test
Number of loopback data
0 0 0 0 0 0 5
30 30 30 30 30 30 35
H H H H H H
Loopback data
B C D E
42 43 44 45
H H H H
Loopback data
A B C D E
00 41 42 43 44 45
H H H H H H
D E
44 45
H H
Loopback data
A B C D E
41 42 43 44 45
H H H H H H