Nanda NA300 Series User Manual And Technical Specifications page 67

NA300 Series Programmable Logic Controller Technical Specifications and User Manual
display the analog module information. The four LEDs are power indicator P, run
indicator R, communication status indicator A and fault indicator F. OLED screen is used
to display the voltage or current value collected by the channel.
As shown below:
LED Color
P Blue
R Green
A Green
F Red
The working state corresponding to the indicator LED is as follows:
P: Power indicator LED. When module power on ,the LED is on; When module

power off ,the LED is off;
R: Run indicator LED. When the module is running normal, the green LED

flickers. If the green LED is always on, that means program has been running
but parameter is unloaded.
A: Communication indicator LED. When CPU module can communicate

normally with other modules through HIN, the LED is on.
F: Fault indicator LED. The LED is on when the modules has fault. The LED

will go off when everything is normal.
OLED screen: Display the analog value of each channel.

Technical Specification
Module display area diagram
State
Constant Lighting/
off
Flicker/Constant
Lighting
Constant Lighting/
off
Light / off
Power on/ Power off
Run normally/ Program has been running
but parameter is unloaded
HIN work normally/ abnormally
Fault/ Running normal
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Meaning