
Installing the Input Module
Chapter 2
2-5
Figure 2.3
Connection
Diagram for 16 Singleended Inputs and FourW
ire
Transmitters
+
–
1
All commons are electrically tied
together inside the module.
2
Jumper all unused channels to
module common to reduce noise.
Source
Ground
Channel 1
Channel 2
2
Channel 3
Channel 4
Channel 5
Channel 6
Channel 7
Channel 8
Channel 9
Channel 10
Channel 11
Channel 12
Channel 13
Channel 14
Channel 15
Channel 16
1
Module Common
1
Module Common
1
Module Common
1
Module Common
1
Module Common
1771WG
Field Wiring Arm
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
10948I
Attention: Analog input signals must be within +14.25V
referenced
to module common.
This input signal includes any
common
mode voltage present between either input
terminal
and module common. If an input terminal
exceeds this range,
channeltochannel crosstalk can cause invalid input
readings and invalid underrange or overrange bits.
The 1771IFE module does not supply loop power for the input
device. The user must supply loop power for looppowered
input devices.
+
–
4Wire
Transmitter
+
–
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