Omron CJ1W-CT021 Operation Manual page 75

Counter Types
Configuring Upper and
Lower Count Limits
CNT1: CNT2:
m+33 m+78
m+34 m+79
m+35 m+80
m+36 m+81
Configuring Error-Code
Generation
CNT1: CNT2:
m+32 m+77
Reporting Overflow and
Underflow
CNT1: CNT2:
n+24 n+29
The Upper Count Limit must be positive and the Lower Count Limit must be neg-
ative (zero is not allowed as Count Limit). To set the Maximum and Minimum
Count Limits refer to the following:
15 14 13 12 11 10 9
Set Upper Count Limit for Linear Counters between 00000001
(=00000000 ) the Upper Count Limit is equal to 7FFFFFFF
H
Counters between 80000000
equal to 80000000 .
H
To configure Overflow/Underflow Error Code Generation for a Linear Counter refer
to the following:
15 14 13 12 11 10 9
An Overflow or Underflow of a Linear Counter is reported in the corresponding bits
in CIO.
15 14 13 12 11 10 9
8 7 6 5 4 3 2 1
and FFFFFFFF . By default (=00000000) the Lower Count Limit is
H H
8 7 6 5 4 3 2 1
8 7 6 5 4 3 2 1
0 Upper Count Limit
Lower Count Limit
and 7FFFFFFF . By default
H H
. Set Lower Count Limit for Linear
H
0
Overflow/Underflow Error-Code
generation:
0 = No Error-Code generation
1 = Error-Code generation
0
Counter Overflow:
0 = No Overflow
1 = Overflow
Counter Underflow:
0 = No Underflow
1 = Underflow
Section 3-2
55