
B-66234EN/05 9.DIAGNOSIS
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9.2 SIGNAL STATUS
The PMC signal status can be displayed and changed in real-time.
WARNING
Special care must be taken when the signal status or
PMC parameters are changed. If the change function is
not used appropriately, the machine operation may be
unpredictable.
When there are people near the machine, this function
should not be used.
CAUTION
1 The statuses of some signals cannot be changed. The
status of such a signal is not changed when a sequence
program, the CNC, the MMC, or an external I/O unit such
as the I/O Link is repeatedly writing data into the address
of the signal. (The CNC repeatedly writes data to addres
F, the MMC repeatedly writes data to address M, and the
external I/O unit repeatedly writes data to address X.)
2 When a bit signal of the D8192-D9999 addresses is
changed , other bit signals of the same byte address are
overwritten at the same time. Therefore, it can happen
that the signal state might not change as specified if the
signals of the same D address is changed by the PMC
program and the CNC at the same time.
9.2.1 Procedure
1 Select [Diagnose] - [Signal Status]. The [Signal Status] screen
appears.
Fig. 9.2.1