Configuration
4.9 Data points
CP 1243-1
72 Operating Instructions, 12/2016, C79000-G8976-C365-02
Supported data point types of the CP
Table 4- 1 Supported data point types and compatible S7 data types
Format (memory re-
quirements)
Digital output Bool Q, M, DB
Integer with sign (16 bits)
Integer with sign (32 bits)
Floating-point number
with sign (32 bits)
Floating-point number
with sign (64 bits)
Block of data
(1 .. 64 bytes)
1)
1)
1)
For the possible formats of the ARRAY data type, refer to the following section.
With the ARRAY data type, contiguous memory areas up to a size of 64 bytes can be
transferred. The following S7 data types are compatible components of ARRAY:
● Byte, USInt (total of up to 64 per data block)
● Int, UInt, Word (total of up to 32 per data block)
● DInt, UDInt, DWord (total of up to 16 per data block)
If the array is modified later, the data point must be recreated.
Time stamps are transferred in UTC format (48 bits) and contain the time difference in
milliseconds since 01.01.1970.
Status IDs of data points
Status IDs of data points
Along with the value of a data point, status identifiers of the data point are transferred in
every frame. They can be evaluated by the communications partner.
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