Counter Types - Omron CJ1W-CT021 Operation Manual

Counter Types

3-2

Counter Types

CNT1: CNT2:
m+30 m+75
Counter Value
CNT1: CNT2:
n+22 n+27
n+23 n+28
Every single Counter of the High-speed Counter Unit can be set independently to
one of the following Counter Types (for an overview of the differences between
Simple and Circular/Linear Counters refer to 1-4 "Quick Start Up Reference
Guide"):
•
Simple Counter (refer to section 3-2-1 "Simple Counter")
•
Circular Counter (refer to section 3-2-2 "Circular Counter")
•
Linear Counter (refer to section 3-2-3 "Linear Counter")
The configuration starts by setting each Counter's DIP switch on the front of the
Unit in the appropriate position. By default this switch is in the OFF position which
selects the Simple Counter. To select a Circular or Linear Counter set the switch
in the ON position. After you have set the DIP switch in the ON position you can
configure every Counter as Circular or Linear Counter by giving the corresponding
word in DM the appropriate setting:
15 14 13 12 11 10 9 8
For Circular and Linear Counters all the functions and features of the High-speed
Counter Unit are available and configurable. For Simple Counters only the default
functions and features are supported since the Unit ignores the DM-settings for
Simple Counters.
For all Counter Types the 32-bit Counter Value is reflected in CIO.
15 14 13 12 11 10 9 8
7 6 5 4 3 2 1 0
7 6 5 4 3 2 1 0
Simple Counter: between 80000000
Circular Counter: between 00000000
Linear Counter: between 80000000
Section 3-2
Counter Type:
0 = Circular Counter
1 = Linear Counter
Counter Value
and 7FFFFFFF
H H
and FFFFFFFF
H H
and 7FFFFFFF
H H
47