INFICON PSG55x ATM to Medium Vacuum Gauge (Profibus) - Manual (Page 9)

tira56e1 (2010-02) PxG55x.cp
9
2 Interface Connection
For operating the Pirani Standard (PSG55x) or Pirani Capacitance Diaphragm
(PCG55x) Gauge via Profibus, an interface cable conforming to the Profibus
standard is required.
If no such cable is available, make one according to the following indications.
Only a cable that is suited to Profibus operation may be used ( → [5]).
n
Make the Profibus interface cable according to the following indications:
1 5
6 9
D-Sub, 9-pin
male, soldering side
Pin 1 Do not connect Pin 7 Not connected internally
Pin 2 Do not connect Pin 8 RxD/TxD-N
Pin 3 RxD/TxD-P Pin 9 Not connected internally
Pin 4 CNTR-P 1)
Pin 5 DGND 2)
Pin 6 VP 2)
1) Only to be connected if an optical link module is used.
2) Only required as line termination for devices at both ends of bus cable
( → [5]).
Pin assignment of the D-Sub 15-pins sensor connector according to the
respective operating manual (
→ [1], [2]).
o
Plug the Profibus (and sensor) cable connector into the gauge.
Profibus cable Sensor cable
p
Lock the Profibus (and sensor) cable connector.
Making a Profibus Interface
Cable
Cable type
Procedure