The message system in WinCC (TIA Portal):-
The transmission of a piece of information or of a notice is called a message. In WinCC (TIA Portal) messages indicate events or operating states.The WinCC message system and the various message procedures are described in the following chapters.
The message system in WinCC (TIA Portal) makes it possible to display and record operating states and errors which are pending or can occur in a system or a control panel.
Overview of the message system
The message system processes different message procedures of the control panel and the PLC. The message procedures are subdivided in system-defined and user defined messages:
-user-defined messages are for monitoring the system.
-system-defined messages are for monitoring the control panel and the PLC.
User-defined message procedure:-
The user-defined message procedures are for monitoring the system processes.
The message procedures are classified by the type of information required for triggering
the message.
User-defined message procedures consist of the following messages:
Analog alarms:-An analog alarm indicates limit value violations during operation. Such an analog
alarm is triggered when a previously defined value of a variable is not reached or is
exceeded.
Discrete alarms:-A discrete alarm indicates changes of status during operation. A discrete alarm is
triggered at a defined value (bit) of a variable.
PLC alarms:-A PLC alarm indicates the status value of the PLC during operation.
User alarms:-A user message monitors the operating actions in the WinCC Runtime Professional
during operation. User messages are triggered by triggering the message number.
A user message can contain the following information:
- Type and content of the acknowledged message
- Time of the acknowledgement
-Operator
-Date
System-defined PLC alarms:-
A system-defined PLC alarms is for monitoring states and events of a SIMATIC S7
PLC. Diagnose messages and system failures (SFM) of a SIMATIC S7 PLC can be
displayed in a control panel.
Supported message blocks:
-Alarm
-Alarm_8
-Alarm_8P
-Alarm_S
-Alarm_SQ
-Alarm_D
-Alarm_DQ
Configuration of discrete alarms:-
Step 1:-Open TIA Portal and Complete Hardware Configuration
Step 2:-In the project navigation under the folder of the control panel you created open the “HMI
alarms”
Step 2:-Open the tab “Discrete alarms”.
Step 3:-In the table, double-click on “<Add new>” to create a discrete alarm.
Step 4:-Select the discrete alarm you just created and in the inspector window open the tab “Properties
> Properties > General”.
Step 5:-In the inspector window, please open the tab “Properties > Properties > Trigger”.
Step 6:-The configuration of the discrete alarm is now complete.
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