How do you display and operate alarms in Runtime?
The table below provides an overview of how to operate and display alarms in Runtime.
|1||Graphical representation using WinCC Alarm Control|
The WinCC Alarm Control offers extensive possibilities for displaying alarms graphically in a message window in Runtime. The alarms appear in tabular form, with each alarm appearing on a separate line. You can parameterize the structure of a message line according to your needs; you can select the configured message blocks in Alarm Logging for display. In general, the information appearing in a message line includes the following at least:
The WinCC Alarm Control enables pending, archived and blocked alarms to be displayed. There are filter and sorting criteria available for this. Statistical information can be displayed about archived alarms.
You can find detailed information about the WinCC Alarm Control
|2||Graphical representation using WinCC standard objects and "State Display" smart object|
You can use an alarm's message or state tags to display the current state of an alarm on the process screen. There are detailed configuration notes available in Entry ID 25418186.
Depending on the bit assignment of the message or state tags, the state of irrelevant bits from message or state tags may have to be hidden during dynamic display in order to reduce the number of possible states (signal states of tags). Irrelevant bits can be hidden by means of C script or VB script. When using message tags for dynamic display purposes, you can use the dynamic dialog to visualize the message bit of the message tags. If you are using a separate message or state tag for each alarm, you can dispense with hiding irrelevant bits if they are always assigned a value of 0 (not set).
|3||Graphical representation using the "Group Display" smart object|
The group display is an option for showing the alarm and event state for an object graphically on the process screen.
Information on the group display is available in the WinCC Online Help under "Editors > Graphics Designer > Objects > Smart Objects - Create > Create Group Display" (up to V6.0) and in the WinCC Information System under "Working with WinCC > Creating process pictures > Working with Objects > Working with objects in the Object Palette > Working with Smart Objects > Group Display" (as from V6.2).
By using chronological signaling, the group display's "Group Value" property can be linked directly to the "*.EventState" tag.
If you use the bit message procedure or the analog alarms, the "*.EventState" tag is not available as standard to supply the message state to the group display. As a remedy, you can configure the state tags for the event. However, the format of the state tags differs from the required format for the group display. The information about the state tags can be prepared in accordance with the "*.EventState" tags and can then be linked to the group display; see also Entry ID 17778440.
|4||Graphical representation using the "Status Display (extended)" smart object (only available in PCS 7)|
The extended status display allows you to combine the information from several state tags and from the alarm state in one display.
Information about the extended status display is available in the WinCC Information System under "Options > Options for Process Control > Overview of the Process Control System Options > Extended Status Display".
Entry ID 23056481 describes how to use the extended status display to visualize the alarm and message states for a measuring point.
|5||"Analog Display (extended)" smart object (only available in PCS 7)|
The extended analog display enables the display of an analog value to be linked directly to the alarm state.
Information about the extended status display is available in the WinCC Information System under "Options > Options for Process Control > Overview of the Process Control System Options > Extended Analog Display".
The "Horn" editor is used to configure the output of message-related events on signal modules and PC sound cards.
Information about this topic is available
|7||Executing a C-action in the case of an alarm|
Alarm Logging permits a C-action to be triggered in Runtime if you set the property "This message triggers an action" when when you configure an alarm. In this C-action you can program your user-defined instructions in order to respond to specific alarm events. The "GMsgFunction()" is used as a default action.
Detailed information about the "GMsgFunction()" is available
|8||Acknowledging, blocking and releasing messages
|9||Releasing operator messages|
WinCC features a number of different picture objects which allow operator messages to be generated when corresponding events occur (Mouse Action, Change, Acknowledge ...). Here is a list of some options for generating an operator message.