User Manual
Section 5
GFK-2958L
May 2021
Detailed Description of I/O Modules
144
5.2.1
LED Indicators EP-1218
Module Status
Green: Communication over the system bus
Red: Module System Fault or Diagnostic
Fault
1.1
Yellow: Input 0 active
1.2
--
1.3
Yellow: Input 1 active
1.4
--
2.1
Yellow: Input 2 active
2.2
--
2.3
Yellow: Input 3 active
2.4
--
3.1
Yellow: Input 4 active
3.2
--
3.3
Yellow: Input 5 active
3.4
--
4.1
Yellow: Input 6 active
4.2
--
4.3
Yellow: Input 7 active
4.4
--
For error messages refer to Section 12, LED Indicators and Troubleshooting.
Figure 57: Block Diagram EP-1218
EP-1218
GND IN
24VDC IN
System
bus