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Firmware
The internal code of the LC220 controller. The
firmware, as well as the Trig220 control software,
can be field-upgraded. Latest upgrades are
available at www.labsmith.com.
Input
One of two input jacks on the LC220. Signals from
these inputs can be logically combined to trigger
either channel.
Lock/unlock panel
A function that disables all front panel functions
(including the power button) to avoid
tampering/accidental changes when the LC220 is
embedded in an experiment.
Logic
The set of assignments that determines when a
channel will trigger.
Noise suppression
Also called “Validated Trigger Input” mode. This
timing mode eliminates false triggers due to noise
on the input signal by requiring the signal to remain
high (or low) for a specified duration.
Output
One of two output jacks on the LC220. The output
signals are determined by the timing channels.
Program all settings
A function which sends all logic and timing settings
to the LC220.
Programmable logic controller
A device which combines logic and timing
processors for precise control of physical
experiments.
Reset
Returns all channels of the LC220 to their waiting
condition. Retriggering Counters and delay settings
are reset as well.
Retrigger
A channel setting that allows the channel to be
triggered more than once if subsequent trigger
pulses are received.
Scaling
In the Dynamically Delayed Trigger timing mode,
scaling determines the ratio of the distance between
the two input sensors to the distance of the target.
