E L C O p e r a t i o n M a n u a l
F o r m o r e i nf o r m a t i o n v i sit :
w w w. e a t o n . c o m
MN05003006E
1-90
(14mA/0.625
μ
A=22,400).
(
)
Offset
Gain
Offset
mA
mA
X
Y
−
⎟⎟
⎠
⎞
⎜⎜
⎝
⎛
−
×
×
=
32000
)
(
20
)
(
16000
Example: If X=14mA, Y=?
(
)
16000
12800
22400
12800
32000
)
(
20
)
(
14
16000
=
−
⎟⎟
⎠
⎞
⎜⎜
⎝
⎛
−
×
×
=
mA
mA
Y
y
The A/D conversion curve needs to be set up only one time. Then set CR#40 to
prohibit further changes
2. Addresses
X0 = On: Set the input mode of the signals in CH3 to mode 4.
X1 = On: Set the Offset value for CH3 to 8mA (12,800) and the Gain value to 14mA
(22,400).
M0 = On: Disable CH3 configuration changes.
3. Program
description
y
When X0 = On, set CR#4 to K4 (H’4) and the signal input mode in CH3 to mode 4
(current input mode).
y
When X1 = On, write K12,800 (Offset value for CH3) into CR#30 and K22,400 (Gain
value for CH3) into CR#36.
y
When X1 goes from On to Off, set M0 = On to disable modifications to the A/D
conversion curve. Write K4 (H’4) into CR#40 to disable CH3 configuration changes.
4. Program
example
Ladder Diagram:
Explanation:
Set CH3 to mode 4
(current input mode)
Set the Offset value for
CH3
Set the Gain value for
CH3
X0
M0
X1
K0
K36
K1
K0
K40
K1
K0
K1
TOP
K0
K1
M0
TOP
TOP
TOP
X1
SET
H4
K12800
K22400
H4
K4
K30
Disable CH3 configuration
changes
