Connector

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Connector

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The Profibus interface is DB9F (DB-9 pin female).  It is galvanic isolated from the rest of the controller. The PIN allocation is given in the table.

 

Table  - Connector PIN Allocation

PIN

Signal

Description

1

-

Not Used

2

-

Not Used

3

B Line

Positive RxD/TxD, RS485 level

4

RTS

Request to send

5

GND Bus

Bus Ground (isolated)

6

+5V Bus Output

+5V termination power (isolated)

7

-

Not Used

8

A Line

Negative RxD/TxD, RS485 level

9

-

Not Used

Housing

Cable Shield

Internally connected to the protective earth via cable shield filters according to the Profibus standard.

 

Caution!

Any current drawn from the pin 6 will affect the total power consumption. The Profibus connector must not be used for other application that may damage the Profibus interface.