Inficon T-Guard Leak Detection Sensor Bedienungsanleitung PDF herunterladen (Seite 34)

32 Installation

jina85e 4.fm Technical Handbook(1112)

4.6 Connecting a PLC

4.6.1 Selection of functions assigned to the PLC inputs.

Select the PLC inputs as follows:

Main Menu

→

Settings

→

Interfaces

→

Select PLC Inputs.

In the sub-menu S

ELECT PLC INPUTS, you can set which pin

of the I/O-connector (suitable for PLC-inputs) shall be assigned to which command.

Please find a complete list of the input commands and their meanings below:

To change the commands assigned to the input-pins, select the appropriate pin using

the UP and DOWN arrows on the left side of the display.

Then select the desired command from the list of commands using the UP and

Command Explanation

START Starts a measuring cycle.

If the T-Guard™ Leak Detection Sensor was in STANDBY the

start will be delayed by some seconds.

STOP Stops a measurement cycle. You will not get a valid leak rate.

START/STOP Starts and stops a measurement cycle if switched to HIGH or

LOW , respectively.

CAL Starts a calibration.

A successful calibration changes the calibration factor.

PROOF Starts checking the calibration with the proof leak rate.

CLEAR Clears errors and warnings. T-Guard™ Leak Detection

Sensor restarts in case of an error.

READY Wakes up the T-Guard™ Leak Detection Sensor from

Standby mode.

STANDBY Puts the T-Guard™ Leak Detection Sensor on Standby

mode. This enlarges the sensor lifetime.

GROSS / FINE Switches between GROSS and FINE measurement.

Only available in Continuous Mode.

PURGE Purges the measurement line as long as input is high. The

helium sensor signal will be ignored.

Only available if auto-purge is off.

INV START electrically inverted START command

INV STOP electrically inverted STOP command

STOP/START Stops and starts a measurement cycle, if switched to HIGH

and LOW, respectively.

INV CAL electrically inverted CAL command

INV PROOF electrically inverted PROOF command

INV CLEAR electrically inverted CLEAR command

INV READY electrically inverted READY command

INV STANDBY electrically inverted STANDBY command

FINE / GROSS Switches between FINE and GROSS. Only available in Conti-

nuous Mode.

INV PURGE electrically inverted PURGE command

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