4. Motion Control Instruction
4-130 DVP-MC operating manual
4.6.45. F_Trig
API Controller
172
F_Trig
Falling edge triggering
10MC11T
Explanation of the instruction:
F_Trig is used to trigger via falling edge of CLK bit to make Q bit generate the high level for one scan cycle.
When EN is On and CLK turns on -> off, Q outputs the high level for one scan cycle.
Explanation of input and output parameter of the instruction
Parameter
name
Explanation
Data
type
Available
device
EN “F _Trig” is executed as “EN” turns on. BOOL M,I,Q, constant
CLK The falling edge triggering BOOL M,I,Q, constant
Q
The falling edge of CLK makes Q be in on status for one
cycle when the instruction is being executed.
BOOL M,Q
Program example:
As I0=On and M0 turns on -> off via the trigger of the falling edge, "F_Trig" instruction is executed; "Q0"
outputs the pulse once and the length of the pulse is one scan cycle.
Sequence chart:
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