UniCAN – Installing the device
Installation Manual Version . //
3.3 LED and status indicators
The UniCAN data logger features two LEDs on
the front and back with the exact same function:
fThe network LED (③) indicates the trans-
mission status.
fThe status LED (④) indicates the measure-
ment, operating and card access status.
Color codes of the network LED
LED Meaning
Color Status
—off Not ready (network module not switched on)
green blinking Not ready (network module booting up)
green continuously lit Idle, network module running, no activity
orange/green blinking Activity (status indicator: states . through .)
red continuously lit Error state or firmware update in progress
Tab. 3-2: Color codes for transmission (network LED)
Color codes of the status LED
LED Meaning
Color Status
—off Device not supplied with power or not switched on
green continuously lit Idle, no card inserted/detected or no card access
orange/green blinking Activity (card access)
red continuously lit Error state or firmware update in progress
Tab. 3-3: Color codes for measurement (status LED)
There is also a -digit, -segment display on the front of the UniCAN (①). This display supplements
the two LEDs and is used for visualization of device status and error codes. The location of a dot (⑤)
determines which display is currently active.
fIf the left-hand dot is lit up, the transmission status is being indicated (network LED).
fIf the right-hand dot is lit up, the measurement status is being indicated (status LED).
The display is automatically switched on for seconds after the device is restarted or for seconds
if the status changes. If the display is inactive, pressing the button(②) initiates display of the
measurement status (for seconds). Pressing the button again switches between the display for
measurement and transmission (and lights the display for another seconds).
All possible indications and status values are listed in the following.
② ③ ④①
⑤
Fig. 3-2: UniCAN 3: LED and status indicators, front side
