Client Side Online Changes

During runtime, Plant SCADA clients only require graphics, code and communications information to operate successfully. Other configuration information is deployed to an appropriate server.

This means the following configuration changes can be made to a project without the need to restart clients:

• I/O devices

• Tags

• Alarms

• Trends

• Reports

• Accumulators.

Following any configuration changes to these areas of functionality, you can compile and distribute a project as you normally do. However, despite the fact a client restart is not required, you will have to restart the following servers to implement the changes in the runtime system.

• I/O devices - require a restart of the I/O server

• Tags - require a restart of the I/O server

• Alarms - require a restart of the alarm server

• Trends - require a restart of the trends server

• Reports - require a restart of the reports server

• Accumulators (require a restart of the reports server.

  Note: You are able to reload a page at runtime even if the associated Cicode library has changed. However, the hardware alarm "Cicode library timestamp differs" will be raised if the Cicode library that was used to create the page does not match the one that is in memory. Under these circumstances, it is recommended that you restart a client. See Handle Cicode Changes during Runtime.

See Also

Server Side Online Changes