44 DECADE user manual, edition 9
‘RESET’ of the DECADE is required. This is necessary to be ready for
the next run. In our example the following line has to be programmed:
This activates the ‘relay1’ output (‘0100’) for 1 second, just before ending the
time file. This relay has been connected to the ‘RESET’ input (Fig. 13A).
Note that the ‘RESET’ function overrules ‘CycleTime’. Immediately after this
function, the execution of the time file is interrupted, whether the cycle time is
met or not. It is therefore recommended to program the ‘RESET’ 1 second
before the cycle time (never at a time
≥
‘CycleTime’).
7.
By pressing RUN the system is ready for automated operation. The time
file is started by an external contact closure from the autosampler (Fig.
13). The duration of this contact closure must be at least 100 ms. Each
time a run is started the ‘AUTO RUN’ screen appears. After the ‘RESET’
command (via relay1), the ‘AUTO SET’ screen is displayed.
The auto zero command (‘A-ZERO’) is accessible during operation in the
AUTO mode as long as ‘I-Cell’ is displayed.
Accessible keyboard commands in the
slave
mode are: RUN, STOP, RESET
and A-ZERO. This means that you can also start (and stop) the time file from
the keyboard.
Interrupting a time file:
8.
In the slave mode the DECADE does not respond to a ‘HOLD’
command from the keyboard. You can stop the timer by making an
external contact closure between ‘HOLD’ and ‘COMMON’. As soon as
the contact closure is released, the time file continues.
Fig. 14. External contact to give a ‘HOLD’ command during execution of a
time file in the slave mode.
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