User Manual

Table Of Contents
160 Appendix
Mailbox Command References
WAGO-I/O-SYSTEM 750
I/O Modules
6.3.5.31 Read Back the QoS Settings (GetConnectionQoS, 0x88)
This command reads back the settings of the Quality-of-Service (QoS) of a
connection.
Conditions
Mailbox size Operating mode/profile Device role
6 12 18 Config.
Real-
time
Ad hoc Master Slave
Save
config.
Restart
- - - -
Request
Byte 2
7
2
6
2
5
2
4
2
3
2
2
2
1
2
0
0 MBX_GETCONNECTIONQOS
1 T -
2 MBX_TARGET_TABLE_AND_INDEX
Arguments
Parameter Value Description
Bit 0…3 Table index: Index 0…6 for WAGO devices of slots 1...7 MBX_TARGET_
TABLE_AND_INDEX
Bit 4…7 Target table, "2" for WAGO_DEVICE (slots 1...7)
Response
Byte 2
7
2
6
2
5
2
4
2
3
2
2
2
1
2
0
0 MBX_GETCONNECTIONQOS
1 T MBX_RESULT
2 MBX_QOS_SETTINGS
Return values
Parameter Value Description
MBX_CMD_OUT_OF_RANGE No error occurred MBX_
RESULT
MBX_CMD_INVALID_ARG Index too large or WAGO table not
chosen
MBX_BQM_NONE (0x01) No QoS activated (standard)
MBX_BQM_BEST_EFFORT (0x02) QoS is active in the "Best Effort" mode
MBX_QOS
_SETTINGS
MBX_BQM_GUARANTEED (0x03) QoS is active in the "Guaranteed" mode