3-7
CM2
On
Communication channel used by Port 2 is busy.
CM3
On
Communication channel used by Port 3 is busy.
RST
Flashing
CPU Reset, (usually by the watchdog timer), i.e.
indicates that the software is not running properly.
ERR
On
One of the following malfunctions:
– Illegal state detected in the software
– Module / board missing
– Other malfunction
ERR
Flashing
CPU Failure. The other LEDs in the matrix indicate the
type of failure (for higher level of maintenance).
BAT
On
Main input power voltage to power supply module is
below 12 VDC.
LED Display On / Advance
When the display is off pressing the pushbutton once, momentarily, activates the display.
Every consecutive momentary depression of the pushbutton advances the display to the
next module in the following order: CPU > M1 (I/O Module 1) > M2 (I/O Module 2) > M3
(I/O Module 3). The next depression of the pushbutton will return the display to the CPU
Led position (upper left corner).
LED Display Off
When the display is programmed to turn off after a pre-defined time-out (set through the
Toolbox Site Configuration file), if the pushbutton is not pressed for this timeout the
display will turn off automatically.
LED Test
When the pushbutton is pressed continuously for a few seconds all of the LED’s light up
simultaneously. When the pushbutton is released the LED’s turn off.
User Flash Erase
Immediately upon power on (cold restart) all of the LED’s should light up simultaneously.
Then all LED’s turn off and only the Reset Led is turned on. To erase the User Flash
programs inside the CPU Flash press and hold down the pushbutton while the Reset Led
is on. Continue to hold down the pushbutton while all of the LED’s flash three times. After
the third flash release the pushbutton and the normal power up sequence should begin.
Alternatively, press the pushbutton continuously for at least 40 seconds at any time to
erase the User Flash.
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