GE Industrial Solutions EntelliPro ES - Manual (Page 195)

To investigate the parameter status click on the EntelliPro ES device. When the diagnostic window for the correspondence device
opens, it shows that there is a “Parameter Fault".
When the Profibus-DP line is red, this indicates an error in parameter values or configuration has occured. The Cyclic
Profibus-DP communication is not running and no data change is possible.
EPOS MOTOR MANAGEMENT SYSTEM - INSTRUCTION MANUAL 4.58
CHAPTER 4: COMMUNICATION