Load Instructions for Timers and Counters
53
S7-400 Instruction List
A5E00267845-01
Load Instructions for Timers and Counters
Loading a time value or count value into ACCU1. The contents of ACCU1 are first saved to ACCU2. The bits of the status word are not
affected.
struc-
tion
Address ID Description
in
Words
CPU
412
CPU
414
CPU
416
CPU
417
L T f
T (e)
Load time value 1
1)
/2
2
0.1/0.12
5
0.1+
0.06/0.0
75
0.06+
0.04/0.0
5
0.04+
0.03/0.0
42
0.03+
Timer para. Load time value (addressed via parameter) 2 0.1+ 0.06+ 0.04+ 0.03+
L C f
C (e)
Load count value 1
1)
/2
2
0.1/0.12
5
xx+
0.06/0.0
75
0.06+
0.04/0.0
5
0.04+
0.03/0.0
42
0.03+
Counter para. Load count value (addressed via parameter) 2 0.1+ 0.06+ 0.04+ 0.03+
LC T f
T (e)
Load time value in BCD 1
1)
/2
2
0.3
0.3+
0.18
0.18+
0.12
0.12+
0.09
0.09+
Timer para. Load time value in BCD (addressed via parameter) 2 0.3+ 0.18+ 0.12+ 0.09+
LC C f
C (e)
Load count value in BCD 1
1)
/2
2
0.3
0.3+
0.18
0.18+
0.12
0.12+
0.09
0.09+
Counter para. Load count value in BCD (addressed via parameter) 2 0.3+ 0.18+ 0.12+ 0.09+
+ Plus time required for loading the address of the instruction (see page 20)
1)
With direct instruction addressing; Timer/counter No.: 0 to 255
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