Siemens SIMATIC S7 System Manual page 103
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Also See for SIMATIC S7:
- System manual (866 pages) ,
- Functional safety manual (212 pages) ,
- User manual (134 pages)
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Parameter
CU, CD
R (CTU, CTUD)
LOAD (CTD, CTUD)
PV
Q, QU
QD
CV
The numerical range of count values depends on the data type you select. If the count value
is an unsigned integer type, you can count down to zero or count up to the range limit. If the
count value is a signed integer, you can count down to the negative integer limit and count
up to the positive integer limit.
S7-1200 Programmable controller
System Manual, 11/2009, A5E02486680-02
Select the count value data type from the drop-down list under the box
name.
Create your own "Counter name" that names the counter Data Block and
describes the purpose of this counter in your process.
Data type
Bool
Bool
Bool
SInt, Int, DInt, USInt, UInt,
UDInt
Bool
Bool
SInt, Int, DInt, USInt, UInt,
UDInt
Programming instructions
6.1 Basic instructions
Description
Count up or count down, by one count
Reset count value to zero
Load control for preset value
Preset count value
True if CV >= PV
True if CV <= 0
Current count value
103
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