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LED Indications
I/O LEDs
Color
Digital Input
Green
Analog Input
Red
Temperature Input
Red
Relay and
Green
Transistor Output
Analog Output
Red
Status LEDs
RUN
Green
Orange
ERROR
Red
USB
Green
BATT. LOW
Red
FORCE
Red
Error Indications
RUN
Orange
blink
Orange
blink
Unitronics
Indication
Input state
On: Input value is in Overflow
On: Input value is in Overflow, Underflow, or a connection fault occurs
Output state
On: Open Circuit (when set to Current mode)
Color & State
Indication
On
Run mode
Blink
This indication is in conjunction with the USB LED.
See table below, USB Actions Indications, for details
On
Start-up mode
Blink
Stop mode
The Error LED can give indications in conjunction with the
RUN and/or USB LED. See the next tables Error Indications
On/Blink
and USB Actions Indications for details
A USB drive is detected that contains valid action file(s).
On
See table below, USB Actions Indications, for details
Blink
USB Action in progress
On
Battery is low or missing
On
I/O Force on
LED, Color & State
ERROR
USB
Red blink
Off
Red blink
Red blink
Red On
Red On
Indication
USB Action has failed – disconnect the USB drive
to dismiss the error
HW Configuration Mismatch – the HWC in the
UniLogic application does not match the Uni-I/O
modules physically connected to the PLC
Application Invalid
or
Version Mismatch (UniLogic version is not
supported by device firmware)
Uni-I/O Error (check wiring connections)
OS/Application error
UniStream
®
PLC
27
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