Rockwell Automation 1770-HT8 SMART TRANSMITTER - Manual (Page 38)

Installing the Smart Transmitter Interface
Products
Chapter 2
2-13
Figure 2.11
1771ĆIFE Connection Example
90052
1
2
3
4
5
6
7
8
RTN
SH
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
Channel 1
Channel 2
Channel 3
Channel 4
Module Common
Channel 5
Channel 6
Channel 7
Channel 8
Module Common
N/C
Ground Shield
at I/O chassis
mounting bolt
1771-WG
Field Wiring Arm
Shield
HT8/16
Connecting to HART Field Devices
To connect a HART field device to a Terminal Block attach the wires from
the HART field device to a 12 position Phoenix COMBICON plug
supplied with the Terminal Block. Insert the plug into the 12 position
Phoenix COMBICON connector on the lower edge of the Terminal Block
(see Figure 2.12). The 1770-HT8 has two of these connectors; the
1770-HT16 has four. HART field devices can be connected to the Terminal
Block in either a point-to-point or multidrop connection.
For 2-wire transmitters connect the positive (+) terminal of the transmitter
to position 2 on the Terminal Block, and the negative (–) terminal of the
transmitter to position 1 on the Terminal Block. For 4-wire transmitters
connect the positive terminal on the transmitter to position 1 on the
Terminal Block and the negative terminal on the transmitter to position 2
on the Terminal Block.