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Installation manual
CNC 8055
CNC 8055i
7.
CONCEPTS
SOFT: V02.2X
Open communication
PLC instruction.
PLC instructions to control communication via RS232. These READ and WRITE instructions may
be executed from a periodic execution module (PE).
= WRITE nBuffer.
= READ nBuffer.
PLC MARKS
There are the following PLC marks:
READEND (M5507): CNC output that indicates that the message received is in the buffer.
READRDY (M5571): CNC output that indicates whether the READ commands may be received
or not.
WRITERDY (M5572): CNC output that indicates whether the WRITE commands may be sent
or not.
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