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Timer Instructions - Siemens CPU 412-1 Instruction Manual

S7-400; cpu 412 series; cpu 414 series; cpu 416 series; cpu 417 series;.
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Timer Instructions

Starting or resetting a timer. The time value must be in ACCU1-L. The instructions are triggered by an edge transition in the RLO; that is,
when the status of the RLO has changed between two calls.
In-
In-
Address
Address
struc-
struc-
ID
tion
SP
T f
Start timer as pulse on edge
T [e]
change from "0" to "1"
Timer para.
SE
T f
Start timer as extended pulse on
T [e]
edge change from "0" to "1"
Timer para.
SD
T f
Start timer as ON delay on edge
T [e]
change from "0" to "1"
Timer para.
Status word for
SP, SE, SD
Instruction evaluates:
Instruction affects:
+
Plus time required for loading the address of the instruction (see page 20)
1)
With direct instruction addressing Timer No.: 0 to 255
S7-400 Instruction List
A5E00267845-01
Length
Length
in
in
Description
Description
Words
1)
1
2
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+
0.2+
024+
0.12+
/2
0.2
0.12
0.2+
0.12+
0.2+
01.2+
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+
0.08
0.06
0.08+
0.06+
0.08+
0.06+
OR
STA
RLO
Yes
0
/FC
0
42

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