The MOSCAD-M Unit
18
IO3 Page LED Functions
The following table describes the functions of the diagnostic LEDs when set to the IO3
(Page 3) toggle or display (IO3 LED on). Each AI has two LEDS which represent its status
(underflow or overflow). When both LEDS are lit, that means that this specific AI is not
calibrated.
Name
On/Off
Function/Indication
CPU
Off
Flashing:
FPGA is not loaded correctly.
IO1
Off
IO2
Off
IO3
On
Display is in IO3 page.
LED 1
On
AI1 Overflow.
LED 2
On
AI1 Underflow.
LED 3
On
AI1 is uncalibrated.
LED 4
Off
AI1 measures Current. (If AI1 is On,
it measures Voltage.)
LED 5
On
AI2 Overflow.
LED 6
On
AI2 Underflow.
LED 7
On
AI2 is uncalibrated.
LED 8
Off
AI2 measures Current. (If AI2 is On,
it measures Voltage.)
LED 9
On
AI3 Overflow.
LED 10
On
AI3 Underflow.
LED 11
On
AI3 is uncalibrated.
LED 12
Off
AI3 measures Current. (If AI3 is On,
it measures Voltage.)
LED 13
On
AI4 Overflow.
LED 14
On
AI4 Underflow.
LED 15
On
AI4 is uncalibrated.
LED 16
Off
AI4 measures Current. (If AI4 is On,
it measures Voltage.)