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Micromod MOD: MODCELL Multiloop Processor 2002N Model C and Associated Hardware User Manual

Page 62

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MODCELL Multiloop Processor

COMMUNICATIONS CONNECTIONS

Figure 4-5. Simplified Diagram, 2034N RS-485, 4-Wire Module

2034N RS-485 MODULE

DATA

PLCC

SEL

CLK

GND

+5V dc

75LBC176D

3

6

4

7

5

1

2

10

12

11

Xmit Enab

XMIT

RCV

Note:

Flat edge of switch points to address
setting (Modbus Address 5 is shown).

Address Sw

Note:

Module occupies two slots.

75LBC176D

13

14

COMM

DEFAULTS

NO

560

Ohm

TERM

Switch

NO

RX

-

RX+

TX

-

TX+

Isolated

Common

Isolated

+5V dc

Isolated +5V dc

Isolated

+5V dc

5

6