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Siemens SIMATIC S7-1200 CP 1243-8 IRC Operating Instructions Manual page 140

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Table of Contents
Configuration
4.18 Data points
Format (memory
Data point type
requirements)
Integer (32 bits)
Bitstring of 32 bits
Bitstring of 32 bits with time tag
CP56Time2a
Integrated totals
Integrated totals with time tag
CP56Time2a
Bitstring of 32 bits
Bitstring of 32 bits with time tag
CP56Time2a - control direction
Floating-point
Measured value, short floating point
number (32 bits)
number
Measured value, short floating point
number with time tag CP56Time2a
Set point command, short floating
point number
Set point command, short floating
point with time tag CP56Time2a
Block of data
Double-point information
(1...2 Bit)
2)
Double-point information with time
tag CP56Time2a
Double command
Regulating step command
Double command with time tag
CP56Time2a
Regulating step command with time
tag CP56Time2a
Block of data
Bitstring of 32 bits
(1...32 Bit)
3)
Bitstring of 32 bits with time tag
CP56Time2a
Bitstring of 32 bits
Bitstring of 32 bits with time tag
CP56Time2a - control direction
For the format of the time stamp, see the following section.
1)
For these data point types, create a data block with an array of precisely 2 bool.
2)
With these data point types, contiguous memory areas up to a size of 32 bits can be transferred. Only the S7 Bool data
3)
type is compatible.
Format of the time stamp
Time stamps are transferred according to the IEC specification in the "CP56Time2a" format.
Note that in the frames only the first 3 bytes for milliseconds and minutes are transferred.
140
1)
1)
1)
1)
1)
1)
1) 2)
1) 2)
3)
1) 3)
3)
1) 3)
IEC type
Direction
S7 data types
<7>
in
UDInt, DWord
<33>
in
UDInt, DWord
<15>
in
UDInt, DWord
<37>
in
UDInt, DWord
<51>
out
UDInt, DWord
<64>
out
UDInt, DWord
<13>
in
Real
<36>
in
Real
<50>
out
Real
<63>
out
Real
<3>
in
<31>
in
<46>
out
<47>
out
<59>
out
<60>
out
<7>
in
<33>
in
<51>
out
<64>
out
Operating Instructions, 02/2018, C79000-G8976-C385-03
Operand area
I, Q, M, DB
I, Q, M, DB
I, Q, M, DB
I, Q, M, DB
Q, M, DB
Q, M, DB
Q, M, DB
Q, M, DB
Q, M, DB
Q, M, DB
DB
2)
DB
2)
DB
2)
DB
2)
DB
2)
DB
2)
DB
3)
DB
3)
DB
3)
DB
3)
CP 1243-8 IRC
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