Profibus Connection

Nine-pin D sub

Pin 6 transfers 5 VDC, pin 5 transfers GND for the active termination resistor. These must never be used for other functions, as this can lead to destruction of the device.

Pins 3 and 8 transfer the PROFIBUS signals. These must never be swapped over, as this will prevent communication.

Profibus Connection 1:

The Profibus bus line is connected via a 9-pin D sub with the following pin assignment:

Pin

Assignment

1

Shielding

2

not used

3

RxD/TxD-P

4

not used

5

GND

6

+5VDC

7

not used

8

RxD/TxD-N

9

not used

cable colors

PROFIBUS line

D sub

B red

Pin 3

A green

Pin 8