Delta DVP-ES2 Manual

3 Mixed Analog Input/Output Module DVP06XA-E2
4. Program explanation
 When X0 = On, set CR#3 as K1 (H’0001) and the signal input mode at CH2 as mode 1 (voltage input
mode).
 When X1 = On, write K6,400 (Offset value of CH2) into CR#29 and K19,200 (Gain value of CH2) into
CR#35.
 When X1 goes from On to Off, set M0 = On to disable the adjustment on A/D conversion curve. Write K2
(H’2) into CR#40 b1=1 to disable
CH2set value changing.
5. Program example
Ladder diagram: Explanation:
Set CH2 as mode 1 (voltage input mode)
Set the Offset value of CH2
Set the Gain value of CH2
Disable CH2 set value changing
X0
M0
X1
K0
K35 K1
K0 K40
K1
K0
K1
TOP
K0
K1
M0
TOP
TOP
TOP
X1
SET
H1
K6400
K19200
H2
K3
K29
3.7.5 Adjusting A/D Conversion Curve in Current Input Mode 4, Mode 5 and Mode6
1.
Description
 Tak e 0 6X A C H3 for e xa mp le . Wh e n CR #4 i s s et a s cu rrent input mode (mode 4), the Offset value will be
set as 0mA (0) and Gain value as 10mA (10mA/0.625A=16,000), i.e. input current -20mA ~ +20mA will
correspond to values -32,000 ~ +32,000.

When CR#4 is set as current input mode (mode 5), the Offset value will be set as 0mA (0) and Gain
value as 10mA (10mA/0.625μA=16,000), i.e. input current 0mA ~ +20mA will correspond to values 0 ~
+32,000.
 When CR#4 is set as current input mode (mode 6), the Offset value will be set as 4mA
(4mA/0.625μA=6,400) and Gain value as 12mA (12mA/0.625μA=19,200), i.e. input current 4mA ~
+20mA will correspond to values 0 ~ +32,000.
 If you cannot use the default current input mode (mode 4 ~ mode 6), you can make adjustments on the
A/D conversion curve according to your actual need. For example, Set the Offset of CH3 as 8mA
(8mA/0.625A=12,800) and Gain as 14mA (14mA/0.625A=22,400).

OffsetGain
Offset
mA
mAX
Y











32000
)(20
)(
16000
Example: If X=14mA, Y=?

16000
1280022400
1280032000
)(20
)(14
16000












mA
mA
Y
 You only need to set up the A/D conversion curve for once. Set up CR#40 (Set value changing prohibited)
to prevent incorrect operations.
DVP-ES2 Module Manual
3-18

Delta DVP-ES2 Specifications

General

Brand	Delta
Model	DVP-ES2
Category	Controller
Language	English