System Functions
136
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)
105
READ_SI
Read dynamically assigned system
resources MODE = 0
132 -
1185
0)
80 - 988
0)
53 -
1291
0)
45 -
1168
0)
xx - xx
0)
xx - xx
0)
MODE = 1
161 -
1455
1)
93 -
1185
1)
62 -
1535
1)
53 -
1392
1)
xx - xx
1)
xx - xx
1)
MODE = 2
161 -
1273
1)
94 -
1026
1)
63 -
1322
1)
53 -
1201
1)
xx - xx
1)
xx - xx
1)
MODE = 3
163 -
1459
2)
94 -
1179
2)
63 -
1526
2)
54 -
1390
2)
xx - xx
2)
xx - xx
2)
0)
Depending on the size of the SYS_INST target area and on the number of the system resources to be read
1)
Depending on the number of active messages (assigned system resources)
2)
Depending on the number of active messages (assigned system resources) and on the number of assigned instances with the desired
CMP_ID.
