Process Control System
Process Control System
Process Control System
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B8 – 2<br />
Networking with Profibus<br />
• Bus termination<br />
A bus termination must be effected on the first and last noted, in this<br />
case nodes 1 and 4. This can be set via DIP switches on many<br />
Profibus stations. The bus termination corresponds to the illustrated<br />
circuit.<br />
390 Ohm, 1/4 W150 Ohm, 1/4 W 390 Ohm, 1/4 W<br />
5V<br />
(Pin 6)<br />
Data +<br />
(Pin 3)<br />
Data -<br />
(Pin 8)<br />
GND<br />
(Pin 5)<br />
• Interconnection<br />
The individual components are interconnected as shown in the<br />
following table.<br />
consec.<br />
No.<br />
Connection of<br />
1 Profibus plug-in card PC Profibus branch tee 1<br />
Part system Temperature control<br />
2 Profibus branch tee 1<br />
Part system Temperature control<br />
a) PLC<br />
b) Profibus branch tee 2<br />
Part system<br />
Temperature control<br />
3 Profibus branch tee 2<br />
Part system Temperature control<br />
4 Profibus branch tee<br />
part system Flow control<br />
5 Profibus branch tee<br />
Part system Filling level control<br />
to<br />
a) Industrial controller<br />
Temperature control<br />
b) Profibus branch tee<br />
Part system Flow control<br />
a) Industrial controller<br />
Flow control<br />
b) Profibus branch tee<br />
Part system Filling level control<br />
a) Industrial controller<br />
Filling level control<br />
<strong>Process</strong> <strong>Control</strong> <strong>System</strong> • Festo Didactic
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