Delta DVP-ES2 Manual

3 Mixed Analog Input/Output Module DVP06XA-E2
 Mode 2 (H’00
02): (4mA ~ +20mA)
20mA
+3 2,000
0
Offset
4mA
+1 6,000
12mA
Current
outpu t
Digita inputl
Gain
+3 2,767
-6,40 0
Mode 2 of CR#2~ CR#5 4mA ~ +20mA, Gain = 12mA (19,200), Offset = 4mA (6,400).
Gain (CR#38 ~ CR#39) The current output value corresponds to digital value 19,200.
Offset (CR#32 ~ CR#33) The current output value corresponds to digital value 6,400.
Range of digital conversion 0 ~ +32,000
Max./Min. input range of digital data -6400 ~ +32,767
3.7.3 Adjusting A/D Conversion Curve in Voltage Input Mode 0 & Mode 2
1.
Description
 Take 06XA CH1 for example. When CR#2 is set as voltage input mode (mode 0), the Offset value will be
set as 0V (0) and Gain value as 5V (5V/0.3215mV=16,000), i.e. input voltage -10V ~ +10V will
correspond to values -32,000 ~ +32,000.
 When CR#2 is set as voltage input mode (mode 2), the Offset value will be set as 0V (0) and Gain value
as 5V (5V/0.3215mV=16,000), i.e. input voltage 0V ~ +10V will correspond to values 0 ~ +32,000.
 If you cannot use the default voltage input mode (mode 0 and mode 2), you can make adjustments on
the A/D conversion curve according to your actual needs. For example, Set the Offset of CH1 as 2V
(2V/0.3215mV=6,400) and Gain as 6V (6V/0.3215mV=19,200).

OffsetGain
Offset
V
VX
Y











32000
)(10
)(
16000
Example: If X=6V, Y=?

16000
640019200
640032000
)(10
)( 6
16000












V
V
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.
2. Adjusted Curve
+32000
+16000
-16000
10V
-32000
-10V
5V
0
Mode 0
Gain
Offset
Digital
output
Voltage input
+32000
+16000
-16000
10V
-32000
-10V
6V
0
Gain
Offset
Digital
output
Voltage input
2V
3. Devices
 X0 = On: Set the input mode of the signals at CH1 as mode 0.
 X1 = On: Set Offset value of CH1 as 2V (6,400) and Gain value as 6V (19,200).
 M0 = On: Disable CH1 set value changing.
4. Program explanation
 When X0 = On, set CR#2 as K0 (H’0000) and the signal input mode at CH1 as mode 0 (voltage input
mode).
 When X1 = On, write K6,400 (Offset value of CH1) into CR#28 and K19,200 (Gain value of CH1) into
DVP-ES2 Module Manual
3-16

Delta DVP-ES2 Specifications

General

Brand	Delta
Model	DVP-ES2
Category	Controller
Language	English