!
4-8SectionOffset and Gain Adjustment
92
Caution Be sure to turn off the power to the PC before mounting or removing any Units.
If the I/O table is registered in the PC, an I/O setting error may occur, not allowing
any adjustment. In such a case, either cancel the I/O table or create the I/O table
again.
When making adjustments, be sure to perform both the offset adjustment and
gain adjustment.
Note Input adjustments can be performed more accurately in conjunction with mean
value processing.
4-8-2 Input Offset and Gain Adjustment Procedures
To specify the input number to be adjusted, write the value to the rightmost byte
of IR word n as shown in the following diagram.
(Rightmost)
(Leftmost)
Word n
Input to be adjusted (1 to 2)
I/O specification
2: Input (fixed)
For the IR word addresses, n = 100 + 10 x unit number.
For Units #A to #F (10 to 15), n = 400 + 10 x (unit number – 10).
The following example uses input number 1 adjustment for illustration. (The unit
number is 0.)
CLR
00000
SHIFT
CH
*
1
B
0
A
0
A
MONTR
c100
0000
CHG
PRES VAL?
c100 0000 ????
0
A
0
A
2
C
1
B
WRITE
c100
0021
The IR word n+1 bits shown in the following diagram are used for adjusting offset
and gain.
15 14 13 12 11 10 09 08 07 06 05 04 03 02 01 00
Bit
Word n+1
Clear bit
Set bit
Gain bit
Offset bit
Specifying Input Number
to be Adjusted
Bits Used for Adjusting
Offset and Gain
To Next Page
Loading...
Need help?
General
