Siemens SIMATIC S5-115U, User Manual

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S5-115U Manual STEP 5 Operations
Example: KT 40.2 corresponds to 40 x 1 sec.
Tolerance:
The time tolerance is equivalent to the time base.
Operand Examples Time Interval
400 x 0.1 sec. - 0.1 sec. 39.9 sec. to 40 sec.
40 x 1 sec. - 1 sec. 39 sec. to 40 sec.
4 x 10 sec. - 10 sec. 30 sec. to 40 sec.
KT 400.1
KT 40.2
KT 4.3
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Possible settings
for the time
40 sec.
Note
Always use the smallest time base possible.
Loading a Time as Input, Output, Flag, or Data Word
Load Statement: L DW 2
The time 638 sec. is stored in data word DW 2 in BCD code.
Bits 14 and 15 are insignificant for the time value.
11
0 15
1 0 1 0 0
Bit
Time base
Three-digit time value
(in BCD code)
DW 2
0 1 1 1 0 0 0 1 0
Key for Time Base:
Base 0 0 0 1 1 0 1 1
Factor 0.01 sec. 0.1 sec. 1 sec. 10 sec.
You can also use the control program to write to data word DW 2.
Example:
Store the value 270 x 100 msec. in data word DW 2 of data block DB3.
C DB3
L KT 270.1
T DW 2
EWA 4NEB 811 6130-02b
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