Omron EJ1G, User Manual

Page: 162 / 237

141
Detailed Description of Services
Section 6-4
6-4-10 Echoback Test
This service performs an echoback test.
■
Command
Service Request PDU
■
Response
Service Response PDU
1. Test Data
Up to 323 (0143H).
The test data must be within the following ranges depending on the com-
munications data length.
2. Response Codes
MRC SRC
2
0 8
2
1 0
Test data
0 to 323
Communications data length Test data
8 bits ASCII H'20 to H'7E and H'A1 to H'FE
7 bits ASCII H'20 to H'7E
Response code Error name Cause
1001 Command too long The command is too long.
0000 Normal completion Processing was completed normally.
4
MRC SRC
2
0 8
2
1 0
Test data
0 to 323
Response code