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Configuration
3.4.3.1
Analogue I/O
Analogue Inputs
Input 1 Mode & Input
2 Mode:
This option allows you to select the analogue input range to be used by the iRIS, the options
are 0 – 20mA, 4 – 20mA, 0 – 100mV, 0 – 5V and 0 – 30V.
Analogue Output
Source:
This option allows you to either configure the output mode to run in a fixed mode or to use
the measured value from one of the 50 sensors to generate the output. If the source is set to
Fixed, the actual output voltage or current is defined by the Span setting as a percentage of
full-scale (5V or 20mA).
Mode:
When the output is controlled by a sensor, this sets the actual value to use. This is either the
current value which will be updated regularly every time a measurement is taken. Or else it will
use the last logged value which only changes when a processed value is logged. The mode is
ignored when the source is set to Fixed.
Zero:
Sets the actual value representing the minimum signal output (0V or 0mA). The Zero setting is
ignored when the source is Fixed.
Span:
Sets the actual value representing the maximum signal output (5V or 20mA). The Span setting is
used to set the output as a percentage when the source is Fixed.
