309
I/O Memory
Appendix B
Clock Pulses
The Clock Pulses are flags that are turned ON and OFF at regular intervals by the system.
The Clock Pulses are specified with labels (or symbols) rather than addresses.
Note
The CX-Programmer treats Clock Pulses as global symbols beginning with P_.
The Clock Pulses are read-only; they cannot be overwritten from instructions or the CX-Programmer.
The Clock Pulses are cleared at the start of operation.
Using the Clock Pulses
The following example turns CIO 0001.00 ON and OFF at 0.5 s intervals.
Name
Label
CX-Programmer
Symbol
Operation
0.02 s Clock Pulse
0.02s
P_0_02s
ON for 0.01 s
OFF for 0.01 s
0.1 s Clock Pulse
0.1s
P_0_1s
ON for 0.05 s
OFF for 0.05 s
0.2 s Clock Pulse
0.2s
P_0_2s
ON for 0.1 s
OFF for 0.1 s
1 s Clock Pulse
1s
P_1s
ON for 0.5 s
OFF for 0.5 s
1 min Clock Pulse
1min
P_1min
ON for 30 s
OFF for 30 s
0.01 s
0.01 s
0.05 s
0.05 s
0.1 s
0.1 s
0.5 s
0.5 s
30 s
30 s
1 s
0001.00
φ
0.5 s
ψ
φ
0.5 s
ψ
0001.00
LD
1 s
OUT
0001.00
Instruction
Operand
Содержание HOME SECURITY SYSTEM - MOTION SENSOR FQM1-CM001
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