PROFIBUS (x310)

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 (x310) 1:
PROFIBUS interface X310.

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

PROFIBUS interface X310, pin assignment.

Pin

Connection

1

Shielding

2

not used

3

RxD/TxD-P

4

not used

5

GND

6

+5 VDC

7

not used

8

RxD/TxD-N

9

not used

Wire colors of the PROFIBUS line.

PROFIBUS line

D-sub

B red

Pin 3

A green

Pin 8

For the PROFIBUS optional interface (x310), documentation with further information is available:
https://infosys.beckhoff.com/content/1033/m310_b310_profibus_optioninterface/index.html?id=2233561431434830097

Document name

CXxxxx-M310/B310 | Profibus Optional Interface