System Functions
115
S7-400 Instruction List
A5E00267845-01
Execution Time in îs
SFC
No.
SFC Name Function
CPU
412
CPU
414
CPU
416
CPU
417
CPUs
414-4H
417-4H
(solo)
CPUs
414-4H
417-4H
(redun-
dant)
42 EN_AIRT Stop delaying interrupt events
when canceling the last delay
2)
18 11 7 6 xx xx
if other delays are present 437 272 193 171 xx xx
43 RE_TRIGR Retrigger watchdog monitoring 221 123 82 75 xx xx
44 REPL_VAL Transfer substitute value to ACCU1 22 13 9 7 xx xx
46 STP Force CPU into STOP mode
cannot be measured
-- -- -- -- -- --
47 WAIT Delay program execution
in addition to waiting time
15 8 7 5 xx - xx xx - xx
48 SNC_RTCB Synchronize slave clocks 19 12 8 7 xx xx
49 LGC_GADR Find slot with logical address 40 25 17 14 xx xx
50 RD_LGADR Find all logical addresses of a block
(run-time entry for 1 DI 32 in the central
rack)
103 61 41 34 xx xx
2)
When cancelling the last delay, the SFC 42 runtime depends on the priority class in which the SFC 42 is called. The specified runtime
refers to the call in OB 1. It decreases while the priority class number increases.
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