Ms Led (Yellow) - ICP DAS USA I-8124W User Manual

(3). LED solid on (Green) :
This indicates that the DeviceNet firmware is running. The I-8124W
module is communicating with all the slave devices normally.

2.5.3 MS LED (Yellow)

The MS LED shows the module status. It indicates that at least one slave
devices disconnecting with the I-8124W. There are two situations in MS LED.
(1). LED off :
This shows that all of the slave devices communicate with the I-8124W
normally.
(2). LED twinkle (Yellow) :
This shows that at least one slave device has problem to communicate
with I-8124W. It may occur if the configuration is wrong or the slave
device is malfunction.
I-8124W DeviceNet Master API functions User's Manual (V 1.6)
2021/10/04 25