Siemens CPU 412-1 Instruction Manual page 116

SFC
SFC Name
No.
39 DIS_IRT Discard new events
Block all events (MODE = 0)
Block all events of a priority class
(MODE = 1)
Block one event (MODE = 2)
40 EN_IRT Stop discarding events
Enable all events (MODE = 0)
Enable all events in a priority class
(MODE = 1)
Enable an event (MODE = 2)
41 DIS_AIRT Delay interrupt events
the first time delay is activated
if the delay is already activated
1)
When activating the delay for the first time, the SFC 41 runtime depends on the priority class in which the SFC 41 is called. The specified
runtime refers to the call in OB 1. It decreases while the priority class number increases.
S7-400 Instruction List
A5E00267845-01
Function
254
55
31
205
54
29
215
1)
18
Execution Time in ms
CPU 412 CPU CPU
414 416
126 85
31 21
18 13
121 82
30 20
17 12
129 86
10 8
System Functions
CPU CPUs CPUs
417 414-4H 414-4H
417-4H 417-4H
(solo) (redun-
dant)
78 xx xx
18 xx-xx xx-xx
11 xx-xx xx - xx
71 xx xx
17 xx - xx xx - xx
10 xx - xx xx - xx
77 xx xx
6 xx xx
114