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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
φ0.5 s
ψ
0001.00
LD 1 s
OUT 0001.00
Instruction
Operand