Operating instructions

Appendix
A.2 System alarms
MP 377, MP 377 PRO (WinCC flexible)
Operating Instructions, 10/2008, 6AV6691-1DR01-0AB0
289
A.2 System alarms
Introduction
System alarms on the HMI device provide information about internal states of the HMI device
and PLC.
The following overview shows the causes of system alarms and how to eliminate the cause
of error.
Some of the system alarms described in this section are relevant to individual HMI devices
based on their range of features.
Note
System alarms are only indicated if an alarm window was configured. System alarms are
output in the language currently set on your HMI device.
System alarm parameters
System alarms may contain encrypted parameters which are relevant to troubleshooting
because they provide a reference to the source code of the runtime software. These
parameters are output after the text "Error code:"