EDM Solution Ultima 844 - Normally Open, Going Low; Normally Open, One Shot Low; Normally Open, One Shot Low with Reset; Normally Open, One Shot Low with Retrigger

Programmable Outputs 211
Output Polarity
There are fifteen different polarities to choose from. Each polarity is designated by a number. This
number needs to be programmed into the appropriate location of the output being used to indicate how
the output should operate.
Option Polarity Option Polarity
0
Output Not Used
1
Normally Open, Going Low
8
Normally Low, Going Open
2
Normally Open, Pulsing Low
9
Normally Low, Pulsing Open
3
Normally Open, One Shot Low
10
Normally Low, One Shot Open
4
Normally Open, One Shot Low (Retrigger)
11
Normally Low, One Shot Open (Retrigger)
5
Normally Open, One Shot Low (Can Reset)
12
Normally Low, One Shot Open (Can Reset)
6
Normally Open, One Show Low (Alarm)
13
Normally Low, One Shot Open (Alarm)
7
Normally Open, Latching Low
14
Normally Low, Latching Open
0
1
2
3
4
5
Table 117: Event Type Polarities
Output Not Used
If an output is not required for use, the polarity should be programmed as zero.
Normally Open, Going Low
This polarity is normally open circuit and will switch to zero volts when the event occurs. The output
will switch back to open circuit when the event has restored. Time parameters are not applicable to
this polarity.
Normally Open, Pulsing Low
This polarity is normally open circuit and will switch to pulsing zero volts when the event occurs.
The output will switch back to open circuit when the event has restored. Time parameters vary the
"On" time of the pulse.
Normally Open, One Shot Low
This one shot polarity is normally open circuit and will switch to zero volts when the event occurs.
The output will switch back to open circuit when the time parameter setting has expired. This one
shot time setting will always run its full duration and cannot be manually reset.
Normally Open, One Shot Low With Retrigger
This one shot polarity is normally open circuit and will switch to zero volts when the event occurs.
Every time the event occurs, it will restart the one shot timer. The output will switch back to open
circuit once the one shot time has expired.
This polarity is ideally suited for lighting control. A PIR can be used to trigger an output for turning
on lights. While ever there is movement, the PIR will keep re-triggering the output and lengthen the
time the lights will remain switched on.
Normally Open, One Shot Low With Reset
This one shot polarity is normally open circuit and will switch to zero volts when the event occurs.
The output will switch back to open circuit when the one shot time has expired or when the event has
returned to normal. This means the operation of the output can be shortened regardless of the time
parameter programmed.
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