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OB 202 to 205: Multiprocessor Communication
6.19 OB 202 to 205: Multiprocessor Communication
6 - 62
A detailed description of these special function organization blocks
can be found in Chapter 10.
The special function organization blocks OB 200 and OB 202 to
OB 205 allow data transfer between the individual CPUs using the
coordinator COR C in multiprocessor operation.
• • OB 200: initialize
This special function organization block sets up the memory in the
COR C coordinator in which the blocks of data to be transferred are
buffered.
• • OB 202: send
This function transfers a block of data to the buffer of the COR C
and specifies how many blocks of data can still be sent.
• • OB 203: send test
The special function OB 203 checks the number of free memory
fields in the buffer of the COR C.
• • OB 204: receive
This function accepts a block of data from the COR C buffer and
indicates how many blocks of data can still be received.
• • OB 205: receive test
The special function organization block OB 205 checks the number
of occupied memory fields in the COR C buffer.
CPU 948 Programming Guide
C79000-G8576-C848-04
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