Lenze 9300 Servo PLC - 4.2 System POUs

9300 Servo PLC
Appendix
4-2
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9300ServoPLC EN 1.4
4.2 System POUs
Abb. 4-1 System POUs and PLC_PRG
The PLCprovides a number of system POUs.These POUs havedefined features (seetable)and are
called only once per polling.
POU name Program Feature POU st arts, if ...
PLC_TaskOverrun Task overflow the task monitoring time is exceeded
PLC_RealError Floating point error a floating point error occurred
PLC_FailTripping TRIP a trip has been caused
PLC_WarningTripping WARN ING a warning was output
PLC_MessageTripping MESSAGE a message was output
PLC_FailQspTripping
*)
m
a
x
1
0
0
0
s
t
a
t
e
m
e
n
t
s
FAIL- QSP a FAIL-QSPhas been caused
PLC_CANError
ma
x
.
1
0
0
0
s
t
a
t
emen
t
s
CAN-BUS error aCANbuserroroccurs,e.g.BUS-OFF,Cexwarning
PLC_AIFError AIF-BUS error a AIF-Bus error has been caused
PLC_Restart Start after a STOP the START command has been activated
PLC_ColdStart Cold start after a RESET/program download the START command has
been activated.After the execution of these POU the CAN/AIF
bus is ready.
*) not available for Drive PLC
POUs are created, as for the cyclic task ”PLC_PRG”, by creating a PROGRAM-POE with the
symbolic POU name.
System POUs are supported as from hardware version 1.0.
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