Wiring the Bus System
The INTERBUS differentiates between remote bus, peripheral bus and remote installation bus. The INTERBUS Bus Coupler is equipped with the remote bus interface. The INTERBUS Bus Coupler has an incoming and outgoing interface based on D-SUB plug and coupling.
INTERBUS topology
INTERBUS is a ring bus system. The INTERBUS line includes the return line. The cabling therefore appears to be a single line.
Bus length
|
Baud rate |
Bus length |
|---|---|
|
500 kbit/s |
12.8 km (400 m between 2 stations) |
INTERBUS cable
The use of pair-wise twisted, screened cables is recommended for the INTERBUS wiring (3 x twisted pair with screening).
ZB4200 INTERBUS cable
Beckhoff offers an INTERBUS cable with the order number ZB4200.
Cable preparation
Cable colours for using the Beckhoff INTERBUS cable at Bus Terminal and Fieldbus Box:
|
Pin BK40x0/BC4000 |
Function |
ZB4200 cable color | |
|---|---|---|---|
|
D sub plug |
D sub socket |
|
|
|
6 |
6 |
/DO |
green |
|
1 |
1 |
DO |
yellow |
|
7 |
7 |
/DI |
pink |
|
2 |
2 |
DI |
grey |
|
3 |
3 |
COM |
brown |
|
5 |
- |
jumper |
- |
|
9 |
- |
jumper |
- |
INTERBUS D sub coupling ZB4100 and plug ZB4101
For the connection with the INTERBUS cable and the Bus Coupler, we recommend the use of D sub plug and coupling.
ZB4100 incoming remote bus, coupling
ZB4101 outgoing remote bus, plug