2. CNC Monitor Screen
2.7 Diagnosis
I - 177
2.7.4.3 PLC Interface Signal Forcible Defini
tion (S
ingle-shot Type)
This function is used to forcibly define signals to check the PLC functions.
(1) Mode setting
Set the device number to be forcibly set in DEVICE ( ), definition data in DATA ( ), and 1 in
MODE ( ), then press the [INPUT] key. The setup data is processed and forcibly defined at the top of
one cycle of user PLC.
(Example 2)
Set “M23” in DEVICE ( ),
“1” in DATA ( ), and
“1” in MODE ( ).
Press the [INPUT] key.
Data is not displayed in the SET DATA field at the screen top.
CAUTION
When forcibly setting (forcibly outputting) data on the I/F diagnosis screen during machine
operation, pay careful attention to the sequence operation.
(Note) An input signal to the PLC is updated at the beginning of each cycle of the PLC. Therefore, the
signal, once forcibly defined in single-shot type mode, is restored after one cycle.
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