Prosoft-technology 3170-MBS Uživatelský manuál stáhnout pdf (Strana 16)

Module Configuration and Installation 3170-MBS ♦ Flex Platform

User Manual Modbus Slave Interface Module

Page 16 of 55 ProSoft Technology, Inc.

October 27, 2010

3.3 Wiring

Attention: When connecting wiring, torque terminal screws to 7 to 9 inch-pounds.

Connect To

TxRxD- 1

TxRxD+ 2

1 Connect the Modbus cable to the removable connector.

2 Connect +24V dc input to the left side of the lower connector, terminal E.

3 Connect 24V common to the left side of the upper connector, terminal D.

4 Connections G and F are used to pass 24V dc power (G) and 24V common

(F) to the next module in the series (if required).

3.3.1 RS-485 Tip

If communication in the RS-485 mode does not work at first, despite all attempts,

try switching termination polarities. Some manufacturers interpret + and -, or A

and B, polarities differently.

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