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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
1-30
2. Devices
y
X0 = On: Set the output mode for channels CH1 ~ CH4 to mode 1.
y
X1 = On: Set the OFFSET value for CH1 ~ CH4 to 0V (K0) and GAIN value to 2.5V
(K1,000).
y
M0 = On: Disable the ability to modify the Gain and Offset values.
3. Program
explanation
y
When X0 = On, set CR#1 to K585 (H’249, i.e. 0000 0010 0100 1001 in binary) and the
signal output mode for CH1 ~ CH4 to mode 1 (voltage output mode).
y
When X1 = On, write K0 (OFFSET value for CH1 ~ CH4) into CR#18 ~ 21 and K1,000
(GAIN value for CH1 ~ CH4) into CR#24 ~ 27.
y
When X1 goes from On to Off, set M0 = On to disable modifying the Gain and Offset
values. Write K585 (H’249, i.e. 0000 0010 0100 1001 in binary) into CR#33 to disable
the Gain and Offset values for CH1 ~ CH4.
4. Program
example
Ladder diagram:
Explanation:
Set CH1 ~ CH4 to mode 1
(voltage output mode)
Set the OFFSET value of CH1 ~
CH4
Set the GAIN value of CH1 ~
CH4
Disable modifying the Gain and
Offset values
X0
M0
X1
K0
K24
K4
K0
K33
K1
K0
K1
TOP
K0
K4
M0
TOP
TOP
TOP
X1
H249
SET
K1000
K18
K0
K1
H249
Adjusting D/A Conversion Curve (Gain and Offset) in Current Output Mode
1. Description
y
Example for the ELC-AN04NANN. When CR#1 is settos current output mode (mode
2), the OFFSET value will be set to 4mA (K800) and the GAIN value to 12mA (K2,400),
i.e. the input current 4mA ~ +20mA will correspond to values 0 ~ +4,000.
y
When CR#1 is set to current output mode (mode 3), the OFFSET value will be set
to0mA (K0) and GAIN value to 10mA (K2,000), i.e. output current 0mA ~ +20mA will
correspond to values 0 ~ +4,000.
y
If you cannot use the default current output mode (mode 2 and mode 3), you can
make adjustments to the D/A conversion curve according to the application
requirements. For example, set the OFFSET of CH1 ~ CH4 to 6mA (K1,200) and the
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