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GSK218MC Series Machining Center CNC System PLC & Installation Connection Manual
46
Volume I
Programming
Fig. 5-21-2
The system may automatically check the range of the series number of the rising edge, as for
the repeated series number or the exceeding range, the system alarm may occur.
5.22 DIFD (Descending Edge Detection)
Function:
This code outputs 1 signal of one scan period when inputting the signal descending edge.
Format:
DIFD
ACT
L Descending
edge number
(
W
)
Fig. 5-22-1
Controllable condition:
Input signal: The output signal is set to 1 at the descending edge (1
0) of the input signal.
Output signal: The state in the output signal keeps one scan period of the ladder diagram when
this function code is performed.
Parameter:
L : The range of the descending edge number is 0~255. The system alarm may occur when
another DIFU code or DIFD code is used the same number in the ladder diagram.
Operation: