System variables and status information
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PHOENIX CONTACT
117
8.4
PROFINET system variables
Table 8-3 shows the PROFINET system variables of the integrated PROFINET controller
functionality.
The PC Worx Express software does not support this function.
Table 8-3
PROFINET system variables (PROFINET controller functionality)
System variable
Type
Meaning
PNIO_SYSTEM_BF
BOOL
No connection to a configured PROFINET device
An error has occurred in the PROFINET network, i.e., a con-
nection could not be established to at least one configured
PROFINET device. This value is not set if the "Control BF" pa-
rameter was set to FALSE for a PROFINET device. The
PROFINET device has therefore been excluded from con-
nection monitoring.
PNIO_SYSTEM_SF
BOOL
Diagnostic alarm on a configured PROFINET device
At least one PROFINET device is indicating a system error
(diagnostic alarm or maintenance alarm). The error priority
can be determined from the PNIO_DIAG_AVAILABLE,
PNIO_MAINTENANCE_DEMANDED, and PNIO_MAINTE-
NANCE_REQUIRED variables.
PNIO_DIAG_AVAILABLE
BOOL
Diagnostics available
At least one PROFINET device is indicating a diagnostic
alarm for an active connection. The corresponding device(s)
can be identified using the RALRM diagnostic block or by re-
questing the PN_DA_NO_DIAG diagnostic status byte of
each PROFINET device.
The application must decide, for example, whether outputs of
the other PROFINET devices in the network may continue to
be operated.
PNIO_MAINTENANCE_DEMANDED
BOOL
Maintenance demanded
At least one PROFINET device is indicating the "maintenance
demanded" alarm (high-priority maintenance alarm) for the
active connection. The PROFINET device can be identified
using the RALRM diagnostic block.
PNIO_MAINTENANCE_REQUIRED
BOOL
Maintenance required
At least one PROFINET device is indicating the "maintenance
required" alarm (low-priority maintenance alarm) for the ac-
tive connection. The PROFINET device can be identified
using the RALRM diagnostic block.
PNIO_FORCE_FAILSAFE
BOOL
All PROFINET devices are prompted to set their configured
substitute values.
PNIO_CONFIG_STATUS
WORD
Configuration status of the PROFINET controller