OMNITEXT-240 User Manual
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5
5.2.1
Digital inputs connection
ATTENTION! DIGITAL INPUTS ARE NOT GALVANICALY ISOLATED.
The OMNITEXT-240 digital inputs can be used in two modes
–
OPEN/CLOSE and COUNTER.
In OPEN/CLOSE mode digital inputs can be used to monitor the state of a discrete device
–
door
contact switch, push button, PIR detector etc.
In the COUNTER mode the digital inputs can be used to monitor and totalizing of smart meters.
The maximum cable length for a digital input should be up to 30 meters.
6
LED
INDICATORS
LED indicators on the main board show the status of the controller while the USB cable is connected to
the PC:
•
SIG (red)
–
indicates the status of the device together with STA
•
STA (yellow)
–
indicates the status of the device together with SIG.
The following states are displayed:
•
Controller initialization
–
after power-on and firmware update SIG and STA turn ON for a second,
after this turn OFF for another second.
