NOVUS AUTOMATION
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5.3
ANALOG OUTPUTS
DigiRail Connect
has a version with 2 channels of analog output, identified as
O1
and
O2
, on its front panel. These channels establish analog
values of voltage or current according to the digital values received.
Each channel can be configured through the
NXperience
configurator software (see the
chapter).
Fig. 19
– Analog Outputs
Analog outputs have three types of signals. There is no need to make any physical changes to the use any of the available output types. Simply set
the desired option when configuring
DigiRail Connect
(see section
chapter):
•
0-20 mA;
•
4-20 mA;
•
0-10 V.
After setting the desired output type, you must use the
NXperience
configuration software to set other parameters for operation of the analog
outputs in different situations.
•
Operating Range:
Allows you to set the operating range of the analog output, depending on the options:
o
0.00 to 100.00 %:
The register that commands the analog output waits for a percentage value.
0.00 %
corresponds to the minimum value of the analog output (0 mA, 4 mA or 0 V);
100.00 %
corresponds to the maximum value of the analog output (20 mA, 20 mA or 10 V).
o
0 to 32 000:
The register that commands the analog output waits the 32 000 size. Thus, the analog output will be commanded by a per-
centage value to be written.
•
Power On State:
Allows you to set a value for the analog output when the device is turned on and before an analog output value setting com-
mand is received. There are three possible options:
o
Disabled:
Allows the analog output to remain off after device initialization and until a valid command is received.
o
Configured Value:
Allows you to set the value to be adopted in the
Initial Value
parameter after the device initialization and until a valid
command is received.
o
Last Valid Value:
Allows the analog output to take the last valid value recorded.
•
Safe Value Watchdog:
Allows you to set a value for the analog output in case of loss of communication.
5.3.1
FLAGS O1 – O2
The flags
O1
and
O2
, when lit, indicate that the respective channel is enabled, not reflecting the condition or value of the signal present at its termi-
nals.