System variables
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8.3.4 PROFINET system variables
The table below describes the PROFINET system variables of the integrated PROFINET
controller functionality.
Table 8-8 PROFINET system variables (PROFINET controller functionality)
System variable Ty pe Meaning
PNIO_SYSTEM_BF BOOL No connection to a configured PROFINET device
An error has occurred in the PROFINET network, i.e., a connec-
tion could not be established to at least one configured
PROFINET device. This value is not set if the “Control BF”
parameter was set to FALSE for a PROFINET device. This
PROFINET device has therefore been excluded from connec-
tion 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_MAINTENANCE_DEMANDED BOOL Maintenance demand
At least one PROFINET device is indicating the “maintenance
demand” alarm (high-priority maintenance alarm) with an active
connection. The RALRM diagnostic block can be used to iden-
tify the PROFINET device.
PNIO_MAINTENANCE_REQUIRED BOOL Maintenance required
At least one PROFINET device is indicating the “maintenance
requirement” alarm (low-priority maintenance alarm) with an
active connection. The RALRM diagnostic block can be used to
identify the PROFINET device.
PNIO_CONFIG_STATUS WORD Configuration status of the PROFINET controller
PNIO_CONFIG_STATUS_ACTIVE BOOL The variable is set if the desired configuration for the PROFINET
controller has been loaded.
In this state, the PROFINET controller attempts to establish a
connection cyclically to all PROFINET devices in the desired
configuration (under the PROFINET icon).
PNIO_CONFIG_STATUS_READY BOOL This variable is set if the PROFINET controller has been initial-
ized correctly. No desired configuration has been loaded by
PLCnext Engineer.
PNIO_CONFIG_STATUS_CFG_FAULT BOOL The desired PROFINET controller configuration has not been
applied due to a serious error. Please contact Phoenix Contact.
PNIO_FORCE_FAILSAFE BOOL All PROFINET devices are prompted to set their configured sub-
stitute values.
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