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4.5
Formats of the Slave Data
Order of the Slave Data
The order of the data corresponds to the configured input/output ports of the DP
slaves.
For example, the input ports of an ET 200B 16DI station are stored as follows: port
0 in the first byte, port 1 in the 2nd byte etc.
Format of Data Words
The following order is necessary for storing values in the word format (2-byte
numbers):
First, the high byte (lower order address) of the word is entered followed by the low
byte (higher order address),in other words in Motorola format.
Note 1
This order does not correspond to the format of processors belonging to the
80x86/Pentium family!
Note 2
Take into account any additional information from the vendor of the slaves your
user program should support.
DP Base Programming Interface for CP 5613/CP 5614
C79000-G8976-C108-02
Description of the DP Functions, Data, and Error Codes
185
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