Execution Times of the SFCs and SFBs
C-3
ET 200S Interface Module IM 151/CPU
A5E00058783-01
SFC
No.
Execution
Time in s
DescriptionName
58 WR_REC Writes a module-specific data record
(currently not used because there isn’t a module to which
user records can be written)
2200
59 RD_REC Reads a module-specific data record
(currently only reads diagnostic records 0 and 1)
352
64 TIME_TICK Displays the system time with an accuracy of 10 ms 50
81 UBLKMOV Copies the variable without interruption 140
C.2 System Function Blocks (SFBs)
SFB
No.
Name Description Execution
Time in s
IEC Counters
0 CTU Counts up. The counter is incremented by 1 for each rising edge. 70
1 CTD Counts down. The counter is decremented by 1 for each rising
edge.
69
2 CTUD Counts up and count down. 85
IEC Timers
3 TP Generates a pulse of duration PT. 90
4 TON Delays a rising edge of duration PT. 91
5 TOF Delays of falling edge of duration PT. 91
Implementation of a Sequence Processor
32 DRUM Implements a sequence processor with a maximum of 16 se-
quences.
302
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