
1.OVERVIEW OF PMC B-63983EN/02
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Output signal processing
(1) Output memory to the CNC
Signals output from the PMC to CNC are set in the output memory
of the CNC. Normally, the PMC transfers signals to the output
memory of the CNC at intervals of 4 or 8 msec.
(2) Output signals to the machine (DI/DO card)
Signals output to the machine are transferred from the output
signal memory of the PMC to the output circuit (DI/DO card).
(3) Output signal memory
The output signal memory is set by the sequence program of the
PMC. Signals set in the output signal memory are transferred to
the machine at intervals of 2 msec.
NOTE
1 The statuses of the input memory of the CNC, input
signals from the machine, output memory of the
CNC, and output signals to the machine can be
viewed on the SIGNAL STATUS screen of the PMC.
For the SIGNAL STATUS screen, see Section 7.1.
2 I/O signals exchanged with the machine are normally
transferred at intervals of 2 msec when the I/O Link is
used. Depending on the channel setting of the I/O
Link, however, the transfer interval varies. For
details, see Section 3.1.