IFM Electronic AC402S Programming Manual page 120

SmartPLC SafeLine AC4S with fieldbus interfaces
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Output parameters
Parameter Data type
xPS BOOL
xPM BOOL
xEF BOOL
xSE BOOL
xPF1 BOOL
xPF2 BOOL
wVoltage1 WORD
wVoltage2 WORD
iSymmetry INT
xReady BOOL
xBusy BOOL
xError BOOL
wDiagnostic WORD
Diagnostic codes:

0x0000 No specific error is set
120
Description
Voltage source (Power Source)
Power24-Modul (PM)
Earth fault
Status of the earth fault detection
Voltage <22.5 V (power fail 22.5 V)
Voltage <19.0V (power fail 19V)
Voltage AS-i+ to AS-i- in mV
Voltage FE to AS-i in mV
Symmetry in % (-100% ... +100%)
Signal indicates whether the execution
of the FB is completed.
Signal indicates whether the FB is
being executed.
Signal indicates whether errors
occurred while the FB was executed.
Diagnostic information
Possible values
FALSE Unit is supplied via Aux.
TRUE Unit is supplied via AS-i.
FALSE Power24 module missing.
TRUE Power24 module is inserted.
FALSE No earth fault
TRUE Supply voltage is asymmetric,
earth fault suspected.
FALSE Earth fault detection does not
provide valid data (e.g. when
AS-i voltage is lacking).
TRUE Earth fault detection provides
valid data.
FALSE No AS-i power fault (Classic
APF)
TRUE AS-i power fail (Classic APF),
i.e. AS-i voltage is below
22.5 V
FALSE No AS-i power fail (24V-APF)
TRUE AS-i power fail (24V-APF), i.e.
AS-i voltage is below 19.0 V
0xFF9C -100%
... ...
0x0000 0%
... ...
0x0064 +100%
FALSE FB is inactive or being
executed.
TRUE FB execution is completed.
FALSE FB is deactivated or FB
execution is completed.
TRUE FB execution has started but is
not yet completed.
FALSE FB is disabled or is being
executed or FB was executed
without error.
TRUE An error occurred while the FB
was executed.
→ List below (Diagnostic codes)
42610