Reference
Varian, Inc.
User Manual Micro-GC
Page 63
EXTERNAL DEVICES
The is equipped with several external I/O’s in order to control external devices or to synchronize
with external devices. External devices can be external pump(s), alarms, Auto Sampler, etc.
The following I/O’s are standard available:
1. Two external serial ports (Com2: RS232, Com3: RS485)
The driver supports control of the VICI electric actuated multi positional valve via Com2
(see also
2. Two external relays (contact closures)
The driver supports alarming purposes, Auto-Sampler control via solenoids and external
pump control (see also
).
3. External Start In
The driver supports the start of the Micro-GC by an external device (Flow computer or
PLC). The Micro-GC processes this event (start run) and passes the event to the driver
(see also
4. External Start Out
The “External Start Out” signal is directly controlled from the Micro-GC (see also
5. External Ready In
The “External Ready In” signal is not processed in the Micro GC. The driver acquires
this event. It can be used to synchronize with an external device (see also
6. External Ready Out
The “External Ready Out” signal is directly controlled from the Micro-GC (see also
7. Six External Analog Input signals
The driver supports the acquisition and processing of the External Analog Input signals
(see also
).
The VICI electric actuated multi positional valve
Summary of Contents for Micro-GC 490-GC
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