System Functions
113
S7-400 Instruction List
A5E00267845-01
Execution Time in
s
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)
26
UPDAT_PI
Update process image input table (run-
time entry for 1 DI 32 in the central rack)
43
28
21
18
xx
xx
AI 8* 13Bit
67
50
42
39
xx
xx
27
UPDAT_PO
Update process image output table (run-
time entry for 1 DO 32 in the central rack)
39
27
21
18
xx
xx
AO 8* 13Bit
62
46
39
36
xx
xx
28
SET_TINT
Set time-of-day interrupt
92
54
36
32
xx
xx
29
CAN_TINT
Cancel time-of-day interrupt
30
17
12
10
xx
xx
30
ACT_TINT
Activate time-of-day interrupt
63
35
24
21
xx
xx
31
QRY_TINT
Query time-of-day interrupt
16
10
7
5
xx
xx
32
SRT_DINT
Start time-delay interrupt
49
28
19
17
xx
xx
33
CAN_DINT
Cancel time-delay interrupt
33
19
13
11
xx
xx
34
QRY_DINT
Query time-delay interrupt
16
10
7
5
xx
xx
35
MP_ ALM
Trigger multicomputing interrupt
368
209
142
130
--
--
36
MSK_FLT
Mask synchronous faults
19
12
8
7
xx
xx
37
DMSK_FLT
Demask synchronous faults
23
14
10
8
xx
xx
38
READ_ERR
Read error register
23
14
9
8
xx
xx
