386
Interrupt Functions
Section 8-1
When CIO 0.05 goes from OFF to ON 200 times, processing of the cyclic task
that is currently being executed will be interrupted and processing of interrupt
task 141 will start. When the interrupt task processing is completed, process-
ing of the interrupted ladder program will restart.
Restrictions
Inputs cannot be used for input interrupts when they are being used as gen-
eral-purpose (normal) inputs or quick-response inputs.
8-1-4
Scheduled Interrupts
This function executes an interrupt task at a fixed time interval measured by
the CPU Unit’s built-in timer. Interrupt task 2 is allocated to scheduled inter-
rupt.
Procedure
PLC Setup
Click the
Timings
Tab and set the input function to Scheduled Interrupt Inter-
val (the scheduled interrupt timer’s units). The timing units can be set to 10
ms, 1 ms, or 0.1 ms. The scheduled interrupt timer SV is calculated by multi-
plying this interval setting by the timer SV set with MSKS(690).
W0.00
0
CIO 0.05
Counter SV (in A533)
= 200 (00C8 hex)
Counting enabled.
Counter PV (in A537)
Interrupt task 141
executed.
Set the PLC Setup.
• Use the CX-Programmer to set the scheduled
interrupt timer units in the PLC Setup.
↓
Write the ladder program.
• Write the program allocated to interrupt task
2 (scheduled interrupt task).
• Use MSKS(690) to specify the timer SV.
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...
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