138
Clock Pulses
Section 4-15
4-15 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 symbols rather than addresses.
Note
The CX-Programmer treats condition flags 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 100.00 ON and OFF at 0.5 s intervals.
Name
Symbol
Operation
0.02 s Clock Pulse
P_0_02_s
ON for 0.01 s
OFF for 0.01
s
0.1 s Clock Pulse
P_0_1s
ON for 0.05 s
OFF for 0.05
s
0.2 s Clock Pulse
P_0_2s
ON for 0.1 s
OFF for 0.1 s
1 s Clock Pulse
P_1s
ON for 0.5 s
OFF for 0.5 s
1 min Clock Pulse
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
0.5 s
0.5 s
100.00
100.00
OUT
LD
1 s
100.00
Instruction
Operand
Summary of Contents for CP1L-EL20DR-D
Page 3: ...CP1L EL20D CP1L EM30D CP1L EM40D CP1L EL EM CPU Unit Operation Manual Produced July 2017...
Page 4: ...iv...
Page 10: ...x...
Page 22: ...xxii...
Page 34: ...xxxiv Software Licenses and Copyrights 7...
Page 192: ...158 Trial Operation and Debugging Section 5 3...
Page 250: ...216 Automatic Clock Adjustment and Specifying Servers by Host Name Section 6 7...
Page 666: ...632 Trouble Shooting Section 11 7...
Page 696: ...662 Standard Models Appendix A...
Page 805: ...771 Connections to Serial Communications Option Boards Appendix F Connecting to Unit...
Page 806: ...772 Connections to Serial Communications Option Boards Appendix F...
Page 836: ...802 PLC Setup Appendix G...
Page 838: ...804 TCP Status Transitions Appendix H...
Page 840: ...806 Ethernet Network Parameters Appendix I...
Page 842: ...808 Buffer Configuration CP1L EL EM Appendix J...
Page 844: ...810 Ethernet Specifications Appendix K...
Page 851: ...Index 817 work words 118 write protection 447...
Page 852: ...818 Index...
Page 854: ...820 Revision History...
Page 855: ......