WAGO I/O-SYSTEM 750 Manual page 180

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