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

Page 57

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MODCELL Multiloop Processor

COMMUNICATIONS CONNECTIONS

Figure 4-2. Typical Modbus Network Connections for 2033N RS-232 Communication Module

Isolated

Common

COM

RX

TX

DX

(Not Used)

RX

TX

S32

BASE INSTRUMENT

LOWER

TERMINAL

HOUSING

2033N RS-232 MODULE
(Module Location 31-32)

DATA

PLCC

SEL

CLK

GND

+5V dc

MAX202

3

6

4

7

5

1

2

A

B

2

1

S31

13

14

2

1

12

11

10

XMIT

RCV

DCD

COM

Note:

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

Address Sw

Note:

Module occupies two slots.

Personal Computer

or

2033N Module

MODBUS MASTER

COMM

DEFAULTS

NO

Modbus Slave

Isolated

+5V dc

51