Doc. No.: ORM0051_1 Page
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2.1.1.6 Relay Outputs
A relay output is a volt free contact and can be used to
switch a 24VDC signal. If the output is high, the relay is
closed and the 24V signal is made, if the output is low the
relay is opened and the 24V signal is broken.
The following screen displays the available options for each
relay output.
Signal
The relay output signals included in the drop down list are
linked to the available System Outputs.
NOTE
: When linked to a System Output, the status of the
Relay Output is driven based on the status of the System
Output (see Contact details below).
Current Status
Indicates whether the relay output signal is high or low.
NOTE:
The signal can be overridden by switching between
high and low using the control switch. This can be used to
test that the output is working as expected.
Contact
Indicates whether the output is configured as a normally
open (make on condition) or normally closed (break on
condition).
N/C
–
The output will break the relay circuit when the
linked System Output is active.
N/O
–
The output will make the relay circuit when the
linked System Output is active.
2.1.1.5 Analogue Inputs
An analogue input is an analogue signal provided to the
controller. The signal can be selected as either a current
(4-20mA) or voltage (0-3.3V) at order stage.
The following screen displays the available options for each
analogue input.
Signal
The analogue input signals included in the drop down list
are linked to the available System Values.
NOTE
: When linked to a System Value, the value of the
System Value will be equal to the value of the Analogue
Input.
Value (read-only)
Indicates the converted analogue signal based on the set
sensor range.
Minimum Sensor Range
Indicates the minimum sensor range value and is used to
convert the minimum raw analogue signal into the required
analogue signal.
Maximum Sensor Range
Indicates the maximum sensor range value and is used to
convert the maximum raw analogue signal into the required
analogue signal.
Signal Type (read-only)
Indicates whether the analogue signal is current (4-20mA) or
voltage (0-3.3V).
NOTE
: This must be selected at order stage.
Calibration
See Section 3 for details on analogue input calibration.