74
ifm
Operating Instructions IO-Link Master with Profinet interface StandardLine 8 Ports IP 65 / IP 67 (AL1102)
2017-05-31
Appendix
>
PQI (Port Qualifier Information)
22686
Port Qualifier Information (PQI) contains diagnostic information about the IO-Link port. In addition to
the process data, the IO-Link master sends the PQI to the Profinet controller.
Bit
7
6
5
4
3
2
1
0
PQ
DE
DA
--
--
--
DI2
DI4
Legend:
DI4
Signal status of the digital input on Pin 4 (if used)
FALSE
TRUE
= OFF
= ON
DI2
Signal status of the digital input on Pin 2 (if used)
FALSE
TRUE
= OFF
= ON
DA
Device Available: shows if the IO-Link device has been recognised and if the device
is in the "preoperate" or in the "operate" state
FALSE
TRUE
= no device
= device
recognised
DE
Device Error: shows if an error or a warning occurred; Note: The user needs to
determine the cause of the fault separately via acyclic services.
FALSE
TRUE
= no error
= error
PQ
Port Qualifier: shows if IO data is valid
FALSE
TRUE
= invalid
= valid
