389
Interrupt Functions
Section 8-1
Scheduled interrupt 2 is executed every 30.5 ms.
8-1-5
High-speed Counter Interrupts
This function executes the specified interrupt task (0 to 255) when the CP1L-
EL/EM CPU Unit’s built-in high-speed counter PV matches a pre-registered
value (target value comparison) or lies within a pre-registered range (range
comparison).
• CTBL(882) is used to register the comparison table.
• Either CTBL(882) or INI(880) can be used to start comparison.
• INI(880) is used to stop comparison.
For details on the built-in high-speed counter, refer to 7-1 High-speed Counters.
Procedure
W 0.00
30.5 ms
30.5 ms
30.5
ms
Cyclic task
processing
Interrupt
task 2
Interrupt
Interrupt
task 2
Interrupt
Interrupt
task 2
Interrupt
Cyclic task
processing
Cyclic task
processing
Cyclic task
processing
Internal
clock
Set the PLC Setup.
• Using the CX-Programmer, set the PLC
Setup so that the built-in input is used for a
high-speed counter.
↓
Wire the inputs.
• Wire the input being used for the high-speed
counter.
↓
Write the ladder program.
• Write the interrupt task program.
• Use CTBL(882) to register the high-speed
counter number and comparison table. Cre-
ate the comparison table’s data in advance.
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: ......