User Manual
Section 5
GFK-2958L
May 2021
Detailed Description of I/O Modules
350
5.32.1
LED Indicators EP-3704
Module Status
Green: Communication over the system
bus
Red: Module System Fault or Diagnostic
Fault
1.1
Red: channel error
2.1
Red: channel error
3.1
Red: channel error
4.1
Red: channel error
For error messages refer to Section 12, LED Indicators and Troubleshooting.
Figure 197: Block Diagram EP-3704