audemat DIGIPLEXER 246, Руководство пользователя, Страница: 90 / 93

Digiplexer 246 v2.5.x User Manual – 11/2010
Page 90
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contact@audemat.com – www.audemat.com
B.3.
Analog input module
B.3.
Analog input module
This module provides 8 analog inputs designed to measure voltages up to 50 V. It is possible
to select the measurement range for a better accuracy while converting. This module provides 8 analog inputs designed to measure voltages up to 50 V. It is possible
to select the measurement range for a better accuracy while converting.
Schematic diagram:
This module converts analog voltage into a digital signal used by the unit.
Voltage (+V) must be applied between one of the analog inputs and the ground.
Analog input module external connection diagram:
External connections on SUB-D 25pts female connector situated at the end of the board.
¾
Input impedance: 100 K Ω .
¾ Measurement range: 0-5 V, 0-10 V, 0-25 V & 0-50 V.
¾ ADC resolution (Analog to digital converter): 12 bits for each measurement range.
PIN NUMBER DESCRIPTION
1
IN1
2 IN2
3 IN3
4 IN4
5 IN5
6 IN6
7 IN7
8 IN8
9 Not
used
10 Not used
11 Not used
12 Not used
13 Not used
14 GND
15 GND
16 GND
17 GND
18 GND
19 GND
20 GND
21 GND
22 GND
23 GND
24 GND
25 GND
Note: The ground is the same as the ground of the unit.
ANALOG
INPUT
+ -
+V
COMM
ON -GROUND
(intern
al
y
connected
)
IN 01
SUB-D 25pts FEMALE CONNECTOR
IN 02
IN 03
IN 04
IN 05
IN 06
IN 07
IN 08