Brand :
SIEMENSPart Number :
6ES5526-3LG0Weight :
0.6 kgDimension :
5.1 cm x 25.4 cm x 17.8 cmCountry of Origin :
GermanyHS Code :
8537101190Description :
Communications Processor - CP526Product Description:
Binary signals are exchanged between central processing units (CPU 941 to CPU 944) and some
communications processors, e.g., CP 526, via interprocessor communication flags. The CPU processes interprocessor communication flags like normal flags. However, they are stored in a special
256-byte memory area between the addresses F200H and F2FFH.
The control program must identify interprocessor communication flags byte by byte in data block
DB1 as input flags or output flags.
The transfer of interprocessor communication flags is similar to the transfer of inputs and outputs
to and from the process images. The procedure is as follows:
• The interprocessor communication input flags are read in and stored in the appropriate
memory area prior to program scanning.
• Interprocessor communication output flags are transferred to the appropriate CPs at the end
of program scanning.
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