iRIS 350FX Reference Manual V1.50
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HyQuest Solutions (NZ) Ltd
- PO Box 9466, Hamilton, New Zealand Tel: +64 7 857-0810 Email: [email protected]
Polarity:
Select the switching polarity of the output. This relates to the output’s electrical state with respect to its
logical on/off state. It also defines whether the output type is a pull-down (switch to GND) or pull-up (switch
12V). Please refer to the table below.
Polarity
Output Logical State
Indication LED Output Electrical State
Normal Pull-Down
Off
Off
Open-circuit (Input)
On
On
Pulled down to 0V (GND)
Inverted Pull-Down
Off
Off
Pulled down to 0V (GND)
On
On
Open-circuit (Input)
Normal Pull-Up
Off
Off
Open-circuit (Input)
On
On
Pulled up to +12V
Inverted Pull-Up
Off
Off
Pulled up to +12V
On
On
Open-circuit (Input)
Table 3 – Digital Output Polarity
If the polarity setting is Normal, the output will be electrically on when the output logical state is on
and be high impedance (open-circuit) when the output is logically off.
If the polarity setting is Inverted, the output will be high impedance (open-circuit) when the output
logical state is on and be electrically on when the output is logically off.
If the polarity setting is Pull-Down, the output will short the output terminal to GND. A maximum
of 100mA can be sunk in this mode from an external load.
If the polarity setting is Pull-Up, the output will supply 12V to an external load at up to 100mA.
Start Time:
This is the time at which the iRIS is allowed to start controlling the output if the mode is set to Schedule.
End Time:
This is the time at which the iRIS must stop controlling the output if the mode is set to Schedule.
Duration:
Enter the length of time in seconds that you want the iRIS to keep the output energised for if the mode is set
to Schedule or Schedule Plus.
Interval:
Enter the length of time in minutes between the successive operations of the output if the mode is set to
Schedule.
Alarm Interval:
Enter the length of time in minutes between the successive operations of the output if the mode is set to
Schedule - when there are one or more active alarms in the iRIS.
Summary of Contents for iRIS 350FX
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