Omron CP1L-L14D Series, Operation Manual

Page: 371 / 671

338
Interrupt Functions Section 6-1
Ladder Program
Examples
Example 1: High-speed
Counter (Linear Mode) In this example, high-speed counter 0 operates in linear mode and starts
interrupt task 10 when the PV reaches 30,000 (0000 7530 hex).
1,2,3... 1. Set high-speed counter 0 in the PLC Setup’s Built-in Input Tab.
2. Set the target-value comparison table in words D10000 to D10003.
3. Create the program for interrupt task 10. Always put an END(001) instruc-
tion at the program’s last address.
4. Use CTBL(882) to start the comparison operation with high-speed counter
0 and interrupt task 10.
5. Operation
When execution condition W0.00 goes ON, the comparison starts with
high-speed counter 0.
When the PV of high speed counter 0 reaches 30,000, cyclic task process-
ing is interrupted, and interrupt task 10 is processed. When interrupt task
10 processing is completed, processing of the interrupted cyclic task re-
sumes.
Item Setting
High-speed counter 0 Use counter
Counting mode Linear mode
Circular Max. Count ---
Reset method Software reset
Input Setting Up/Down inputs
Word Setting Function
D10000 #0001 Number of target values = 1
D10001 #7530 Rightmost 4 digits of the target value 1 data Target value =
30,000
(0000 7530 hex)
D10002 #0000 Leftmost 4 digits of the target value 1 data
D10003 #000A Bit 15: 0 (incrementing)
Bits 0 to 7: A hex (interrupt task number 10)
W0.00
CTBL(882)
# 0000
# 0000
D100 00
Use high-speed counter 0.
First comparison table word
Register a target-value comparison table and
start comparison operation.