Thermo Scientific Dionex ICS-2000, Operator'S Manual

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ICS-2000 Ion Chromatography System
D-6
Doc. 031857-03 4/06
The TTL outputs are normally at 5 volts. Setting a TTL output to 0 volts turns on
the action in the connected device.
The TTL and relay output states can be controlled from Chromeleon, either by
issuing direct control commands from the Chromeleon Control panel or by
including the commands in a control program.
Figure D-5 shows an example relay
program command for controlling an AS40 autosampler.
Figure D-5. Example Program for AS40 Control
To control the TTL and relay output states from the touch screen, select
INPUT/OUTPUT
from the menu of pages. The
INPUT/OUTPUT
page appears (see
Figure D-4 ).
•
To set a relay, touch the relay field and select the desired state ( Open or
Closed
). For example, if Relay 1 is connected to the Load input on an AS40
autosampler, touch the Relay 1 field and select Closed to start the AS40 load
cycle.
•
To set a TTL outputs, touch the TTL field and select the desired state ( 5 Volts
or
0 Volts
).
Relay 1 turned on to start
the AS40 Load cycle and Relay 1 turned off after
load the sample loop
138 seconds