Siemens CPU 412-1 Instruction Manual page 45

Timer Instructions, continued
In- In-
Address Address
struc- struc-
ID
tion
SS T f Start timer as retentive ON delay
T [e] on edge change from "0" to "1"
Timer para.
SF T f Start timer as OFF delay on edge
T [e] change from "0" to "1"
Timer para.
Status word for SS, SF
Instruction evaluates:
Instruction affects:
S7-400 Instruction List
A5E00267845-01
Length Length
in in
Description Description
Words
1)
1
2
1)
1
2
BR CC1
– –
– –
Execution Time in ms Execution Time in ms
CPU 412 CPU 414
/2 0.2 0.12
0.2+ 0.12+
0.2+ 0.12+
/2 0.2 0.12
0.2+ 0.12+
0.2+ 0.12+
CC0 OV OS
– – –
– – –
Timer Instructions
CPU 416 CPU 417
0.08 0.06
0.08+ 0.06+
0.08+ 0.06+
0.08 0.06
0.08+ 0.06+
0.08+ 0.06+
OR STA RLO
– – Yes
0 – –
/FC
–
0
43