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ISO 9001
EN 29001
Installation, Operating, and Maintenance Instructions
Series 64.1
VAT Vakuumventile AG, CH-9469 Haag, Schweiz
Tel ++41 81 771 61 61 Fax ++41 81 771 48 30 Email reception@vat.ch http://www.vatvalve.com
225590EE
2005-04-26
11/16
9.1.3.2 RS232C interface
PIN Function Description
RS232C
2 TxD Transmitted data from the PM control
3 RxD Received data by the PM control
7 GND Signal Ground
1 Ground Chassis Ground
Digital Inputs / Outputs
15 CLOSE VALVE input Valve will close when contact PIN 15 to 23 is closed
17 OPEN VALVE input Valve will open when contact PIN 17 to 23 is closed
23 Common for digital input Use relay or optocoupler
8 OPEN VALVE output Valve is open when contact between PIN 8 and 10 is closed, 70V / 0.5 A max.
9 CLOSE VALVE output Valve is closed when contact between PIN 9 and 10 is closed, 70V / 0.5 A max.
10 Common for digital output 70V , 0.5A max.
Mind: Do not connect other Pins than indicated in the table above!
Note: Logic inputs CLOSE valve and OPEN valve are executed in REMOTE and LOCAL operation. These signals have priority
(CLOSE is higher than OPEN) and they are executed immediately.
Local operation:
- The controller remains in OPEN or CLOSE after the logic input is reset.
Remote operation:
- The controller will resume the previous command after the logic input is reset.
- In case a RS232 command is received while a logic input is active this will be accepted by the PM controller and executed
after the logic input is reset.
A flashing LED on the «OPEN» or «CLOSE» key indicates that the logic input OPEN valve, resp. CLOSE valve is activated.
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