Process Image, Types Of Transmission, Event Classes, Triggers - Siemens ET 200SP Operating Instructions Manual

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
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
Block of data Double-point information
(1...2 Bit)
2)
Double-point information with time
tag CP56Time2a
Double command
Regulating step command
Block of data Bitstring of 32 bits
(1...32 Bit)
3)
Bitstring of 32 bits with time tag
CP56Time2a
Bitstring of 32 bits
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.
Time stamp with the IEC CP
IEC CP 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.
4.5.7.3

Process image, types of transmission, event classes, triggers

Saving the data point values
The values of data points are stored in the image memory of the CP and transferred only
when queried by the communications partner.
Events are also stored in the send buffer and can be transferred unsolicited.
CP 1542SP-1, CP 1542SP-1 IRC, CP 1543SP-1
Operating Instructions, 01/2017, C79000-G8976-C426-03
1)
1)
1)
1)
3)
1) 3)
3)
4.5 Telecontrol communication (CP 1542SP-1 IRC)
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
<13> in Real
<36> in Real
<50> out Real
<3> in
<31> in
<46> out
<47> out
<7> in
<33> in
<51> out
Configuration and operation
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
DB
2)
DB
2)
DB
2)
DB
2)
DB
3)
DB
3)
DB
3)
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