Section 3. I/O Interface And Operation; I/O Connector: Customer Accessible Inputs And Outputs; I/O Connector Pin Signals - Agilent Technologies VS Series Operation Manual

Section 3. I/O Interface and Operation

This section describes interfacing and operating the VS C15 component leak detector via
the I/O connector, and monitoring the leak rate output using the 9-pin female D-type
connector.

3.1 I/O Connector: Customer Accessible Inputs and Outputs

Table 3-1lists the Discrete I/O signals. This I/O connector provides a means for a controller,
usually a PLC, to control or to determine the leak detector status. The I/O is accessible via a
type DB25S (female socket) connector
PIN No. Signal Name
15, + VIN
19,
23
17, 21 VRET
1 TUNE_OK
2 CAL_INT_OUT_OK
3 FILAMENT_IN_USE
VS Series Component Leak Detector
Table 3-1 I/O Connector Pin Signals
I/O Level
N/A +5V to
+24VDC
N/A 0 VDC
O LEVEL
O LEVEL
O LEVEL
Description
Customer-supplied
+5 VDC to +
24 VDC for Output
Common pins
Customer -supplied
GND for the Input
Common pins
Low level= This output
Tune not OK indicates tune
results.
High level=
Tune OK
Active HIGH when Indicates internal
internal calibration calibration has
is successful successfully
completed. Set low
on power-up or if
calibration is not
successfully
completed or if
filament has no
emission.
Low level = Level indicates
filament #1 active which filament is
active (operating)
High level =
filament #2 active
Leak Detector
Behavior
3-1