Section 50
00-02-1031
2019-08-07
- 28 -
Digital Input Setup Screen
For all configured digital inputs, the user may edit:
a) Signal Type -
Select one of three choices;
normally open, normally closed DC+ or normally
closed DC-.
b) Signal Filter -
Select None to disable filter function
for the digital input. This will not disable the digital
input for normal operation.
Select Pulse for lubricator divider blocks with a
proximity switch output.
Select DB to debounce or delay input detection for
unstable inputs such as surge tank level.
c) Filter Timing -
Delay time in seconds for the
selected filter type.
For Pulse, this delay is the transition time for the
lubricator divider block to cycle.
For DB, this is the duration the digital input must
remain either ON or OFF before the input will be
recognized and accepted as ON or OFF by the
sequence. If the input does not remain ON or OFF
for the duration of the delay, the timer will reset.
d)
Raw Status: The actual measured sensor state.
e) Total Pulsed -
Total number of pulses counted
when the filter type is set to Pulse. The value is
expressed in hundreds of pulses. A displayed reading
of 1 is equal to 100 pulses. (*only visible on pulse
filter types) It may be reset on this display line as
well.
Pulse Input Status Screen
Pulsed inputs are designed to accept a cycling digital
output from a lubricator divider block, typically from a
general purpose proximity switch.
The user may view information about the pulsed
inputs. If a digital input is designated for use as a
pulsed input, it will display how much time elapsed
before the last transition and how much time has
elapsed since that transition. If the input is not
designated as a pulsed input, there will be zeros
displayed. Both have a maximum value of 999.
