User Manual

Table Of Contents
180 Appendix
Mailbox Command References
WAGO-I/O-SYSTEM 750
I/O Modules
Arguments
Parameter Value Description
Bit 0…3 Table Index
Index 0...6 for WAGO devices of slots 1...7
Index 0...5 for external devices of slots 8...12
MBX_TARGET_TABLE_
AND_INDEX
Bit 4…7 Target table
"2" for WAGO_DEVICE (slots 1…7)
"1" for EXTERNAL_DEVICE (slots 8…12)
Response
Byte 2
7
2
6
2
5
2
4
2
3
2
2
2
1
2
0
0 MBX_GETLINKQUALITY
1 T MBX_RESULT
2 MBX_LQ_VALUE
Return values
Parameter Value Description
MBX_CMD_OUT_OF_RANGE Too large of an index was used.
MBX_CMD_GENERAL_ERROR The device is not connected.
MBX_RESULT
MBX_CMD_INVALID_ARG The device is not connected or no
valid target table was chosen.
MBX_LQ_VALUE [0….255] Value of the connection quality for
the requested connection