Installation PB-XEPI
D301144 0509
18
Connecting the PROFIBUS
The 9-pin D-Sub socket is used for connection.
– Only use standard PROFIBUS plugs and cards.
– Wire the PROFIBUS plug according to the details for pin assignment (see Technical
data on page 23).
– If the device is installed at the beginning or end of the PROFIBUS cable segment,
you will need a bus terminating resistor (see page 19).
1.
Attach the PROFIBUS connector onto the PROFIBUS socket on the device.
2.
Secure the plug with screws.
3.
Switch the switch for the bus terminating resistor on the PROFIBUS connector to the
required position (ON/OFF).
Fig. 5: Possibilities for interface connection in the PROFIBUS network
Warning!
Do not use branch lines for the connection.
If local conditions do not allow a direct connection, use a repeater (connec-
tion according to PROFIBUS norm).
1 Connection at end/start of bus with terminating resistor
2 Connection in the middle of the PROFIBUS segment 1
3 Connection in a seperate PROFIBUS segment behind a
repeater.
Master
Repeater
Slave
Slave
Slave
PROFIBUS
[1]
[2]
[3]
Connecting the PROFIBUS
