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Micromod RetroPAK: SLC Installation Manual User Manual

Page 65

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SLC RetroPAK Controller

COMMUNICATIONS CONNECTIONS

47

Connections for a typical RS-232 Modbus network using the built-in circuit are shown in
Figure 5-4.

COM

TX

RX

RX

TX

COM

Personal Computer

or

Controller

MODBUS MASTER

Built-in connections use
communications Port 1. Locate
jumper as shown in Figure 5-2.

Caution. Disconnect power before wiring.
Refer to terminal connections.

!

to instrument ground

if PC is isolated

Built-in Communication

Figure 5-4. Typical Network Connections for Built-In Modbus RS-232 Communication

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