Mean Value Processing - Omron CJ1W-AD041-V1 Manual

Adjusting Offset and Gain
!Caution Set the PLC to PROGRAM mode when using the Analog Input Unit in adjust-
!Caution Always perform adjustments in conjunction with offset and gain adjustments.
3-7-2 Input Offset and Gain Adjustment Procedures
Specifying Input Number
to be Adjusted
Bits Used for Adjusting
Offset and Gain
116
ment mode. If the PLC is in MONITOR mode or RUN mode, the Analog Input
Unit will stop operating, and the input values that existed immediately before
this stoppage will be retained.
Note Input adjustments can be performed more accurately in conjunction with

mean value processing.

To specify the input number to be adjusted, write the value to the rightmost
byte of CIO word n as shown in the following diagram.
(Leftmost)
Word n
I/O specification
2: Input (fixed)
For the CIO word addresses, n = CIO 2000 + (unit number x 10).
The following example uses input number 1 adjustment for illustration. (The
unit number is 0.)
CLR
C
CH
SHIFT
*DM
CHG
C B
WRITE
1
2
The CIO word (n+1) bits shown in the following diagram are used for adjusting
offset and gain.
Bit
15 14
Word n+1
(Rightmost)
A A A
2 0 0 0
13 12 11 10 09 08
Section 3-7
Input to be adjusted (1 to 8)
(1 to 4 for CS1W-AD041-V1)
000000 CT00
MON
2000
2000
PRES VAL
2000
07 06 05 04 03
0000
0000
????
0021
02 01 00