Timer Instructions
44
S7-400 Instruction List
A5E00267845-01
Timer Instructions, continued
In-
Length
Execution Time in
s
In-
struc-
Address
Description
Length
in
Execution Time in
s
struc-
tion
Address
ID
Description
in
Words
CPU 412
CPU 414
CPU 416
CPU 417
FR
T f
T [e]
Enable timer for restarting on
edge change from “0” to “1”
(reset edge bit memory for
1
1)
/2
0.2
0.2+
0.12
0.12+
0.08
0.08+
0.06
0.06+
Timer para.
(reset edge bit memory for
starting timer)
2
0.2+
01.2+
0.08+
0.06+
R
T f
T [e]
Reset timer
1
1)
/2
0.2
0.2+
0.12
0.12+
0.08
0.08+
0.06
0.06+
Timer para.
2
0.2+
0.12+
0.08+
0.06+
Status word for:
FR, R
BR
CC1
CC0
OV
OS
OR
STA
RLO
/FC
Instruction evaluates:
–
–
–
–
–
–
–
Yes
–
Instruction affects:
–
–
–
–
–
0
–
–
0
+
Plus time required for loading the address of the instruction (see page 20)
1)
With direct instruction addressing Timer No.: 0 to 255
