Omron CJ1W-AD041-V1, Operation Manual

Page: 361 / 427

338
Adjusting Offset and Gain Section 7-9
!Caution Always perform adjustments in conjunction with offset and gain adjustments.
Note Input adjustments can be performed more accurately in conjunction with
mean value processing.
7-9-2 Input Offset and Gain Adjustment Procedures
Specifying Input Number
to be Adjusted 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.
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.)
Bits Used for Adjusting
Offset and Gain The CIO word (n+1) bits shown in the following diagram are used for adjusting
offset and gain.
(Rightmost)
(Leftmost)
Word n
Input to be adjusted (1 to 4)
I/O specification
2: Input (fixed)
--- ---
CLR
000000 CT00
SHIFT
CH
*DM
2
C
0
A
0
A
0
A
MON
2000 0000
CHG
2000 0000
PRES VAL ????
2
C
1
B
WRITE
2000 0021
15 14 13 12 11 10 09 08 07 06 05 04 03 02 01 00
Bit
Word n+1
Offset Bit
Gain Bit
Set Bit
Clear Bit