Analog Input Module Dvp04Ad-E2; The A/D Conversion; Introduction; Product Profile And Outline - Delta DVP-ES2 Manual

1.1 The A/D Conversion

In industrial automation, many measuring units are transmitted by analog signals. The most frequently adopted range
for the signals are voltage -10V ~ 10V and current -20mA ~ 20mA. To use the analog signals as the parameters for
PLC operations, you have to convert them into digital values first.
For example, the voltage -10V ~ 10V is first converted into values -32,000 ~ +32,000 by an A/D module, and the PLC
will read/write the control registers (CR) in the A/D module. The signals sent back to the PLC for operations will be
digital K-32,000 ~ K32,000.

1.2 Introduction

DVP04AD-E2 analog signal input module receives external 4 points of analog input signals (voltage or current) and
converts them into 16-bit digital signals. The Main Processing Unit (MPU) can read/write the data in the module by
using FROM/TO instructions or D9900~D9999 in the program. You can select voltage input or current input by the
wiring. Range for voltage input: ±10V (±32,000). Range for current input: ±20mA (±32,000).

1.3 Product Profile and Outline

1.3.1

DVP04AD-E2

1. Connection port for extension unit/module
2. DIN rail (35mm)
3. Model name
4. POWER, ERROR, AD indicators
5. DIN rail clip
I/O terminals
DVP-ES2 Module Manual
7
6
+ + + + +
4
1
3
6 + +
62
70
5
+ +
V1 I1 VI1 FE V2
24V 0V FE V4
1

Analog Input Module DVP04AD-E2

+
9
61 .5
78
7
Unit: mm
6. Terminals
7. Mounting hole
8. Fixing clip for extension unit/module
9. Mounting port for extension unit/module
+ + +
I2 VI2 FE V3
+ +
I4 VI4 FE
8
2
8
+
I3 VI3 FE
1-1