Rockwell Automation 8520 9/Series CNC Integration Maintenance Manual Documentation Set - Manual (Page 455)

Section 8
Communication Interface
8-22
Figure 8.15
Location of Status Indicators in the Remote I/O Port
A
B
Table 8.G
Remote I/O Module Status Indicators
Indicator Color/State Description Probable Cause Recommended Action
A
(B is not used)
green/steady active link normal operation none required
red/steady hardware fault at
processor
hardware error Recycle power. Replace the
processor. Refer to your processor
documentation.
red/blinking communication break AMP is not set correctly reset AMP parameters to
communicate with scanner program
off remote I/O port is offline port is not being used bring remote I/O port on line