879
High-speed Counter/Pulse Output Instructions
Section 3-21
■
Example 2
When CIO 000100 is ON in the following programming example, PRV2(883)
reads the counter PV, converts that value to number of revolutions, and out-
puts the hexadecimal result to D00301 and D00300.
3-21-4 REGISTER COMPARISON TABLE: CTBL(882) (CJ1M-CPU21/22/23
Only)
Purpose
CTBL(882) is used to register a comparison table and perform comparisons
for a high-speed counter PV. Either target value or range comparisons are
possible. An interrupt task is executed when a specified condition is met.
This instruction is supported by CJ1M-CPU21/22/23 CPU Units only.
Ladder Symbol
Variations
Applicable Program Areas
Operands
P: Port Specifier
P specifies the port for which pulses are to be counted as shown in the follow-
ing table.
PRV2
#0000
#0003
D00200
000100
Converting frequency to rotation speed
Pulses per revolution
PRV2
#0001
#0003
D00300
000100
Converting counter PV to total number of revolutions
Pulses per revolution
CTBL(882)
P
C
TB
P:
Port specifier
C:
Control data
TB:
First comparison table word
Variations
Executed Each Cycle for ON Condition
CTBL(882)
Executed Once for Upward Differentiation
@CTBL(882)
Executed Once for Downward Differentiation
Not supported
Immediate Refreshing Specification
Not supported
Block program areas
Step program areas
Subroutines
Interrupt tasks
OK
OK
OK
OK
P
Port
0000 hex High-speed counter 0
0001 hex High-speed counter 1
Summary of Contents for SYSMAC CS1D-CPU**
Page 3: ...iv...
Page 29: ...xxx...
Page 185: ...146 List of Instructions by Function Code Section 2 4...
Page 1389: ...1350 CJ series Instruction Execution Times and Number of Steps Section 4 2...
Page 1390: ...1351 Appendix A ASCII Code Table ASCII SP Four leftmost bits Four rightmost bits...
Page 1391: ...1352 ASCII Code Table Appendix A...