LED states at power-up
Step
R
E
D1
D2
Description
1
4Hz
4Hz
4Hz
4Hz
Reset
2
1Hz
OFF
OFF
ON
The controller initializes
the OS.
3
1Hz
OFF
OFF
OFF
The OS reads the
settings of the DIP switch
on the backplane module
and checks whether an
Ethernet switch exists.
4
1Hz
ON
OFF
OFF
The OS initializes
realtime clock, Ethernet
interface and file system.
5
1Hz
ON
ON
OFF
The OS initializes the
modules on the system
bus, as well as software
features (Web,
Modbus/TCP, etc.); it
loads the application
program.
6
ON
OFF
OFF
OFF
Normal operating
condition
