Thermo Scientific Dionex ICS-1100, Руководство оператора

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B • TTL and Relay Control
Doc. 065289-03 10/12
133
•
Normal Edge : In normal edge
operation, the negative (falling)
edge of a signal turns on the
function. For example, for the
Load/Inject
function, the
negative edge switches the
injection valve position to Load.
The action of the positive (rising) edge depends on the function: For
the
Load/Inject
function, the rising edge switches the injection valve
to the Inject position. For the Pump On function, the rising edge turns
off the pump (and suppressor). For
Autozero
and
Mark
, the rising
edge has no effect.
•
Inverted Edge : The inverted
edge mode works identically to
the normal edge mode except
that the positive and negative
edges are reversed in function.
•
Normal Pulse : In normal pulse
operation, the negative (falling)
edge of the TTL signal is the
active edge and the positive
(rising) edge is ignored.
A pulse width of 50 ms or more
is guaranteed to be detected. A pulse width of 4 ms or less is
guaranteed to be ignored. The action for pulse widths that are greater
than 4 ms and less than 50 ms is undefined.
•
Inverted Pulse : The inverted
pulse mode operates identically
to the normal pulse mode
except that the positive and
negative edges are reversed in
function.