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Object PmaOpcClientGroup (OPC client data)

Description:
See: PmaOpcClientGroup - Deatiled object description
 
The object serves to the definition of the data group that will be shared between the OPC server and OPC client.
 
No other Pma objects can be created in this object.

The PmaOpcClientGroup object can be created only in the PmaOpcClient object. There can be even more PmaOpcClientGroup objects in the PmaOpcClient object.

This object adds variables into the calculation of the application size, which influences the basic runtime license type/size (see: Price list of the PROMOTIC system ).

This object adopts properties and methods of object PmaObject.
Properties and methods:
ActiveGroup Flag that the data group is active
Count The number of variables in the object
Deadband The dead band in percentage
GetVarExtensions Array of all data extensions registered into this object
Item Access to variables of the PmVar type of this object
ItemEx Access to variables of the PmVar type of this object
Read Reading the defined block in the data group from OPC server
Refresh Reading all values of the data group from OPC server
Update Enable/disable the automatic data update
UpdateRate The minimum update rate in milliseconds
Write Writing the defined block in the data group to OPC server
Events:
onDataReceive Is triggered after the data receipt from the OPC server
Configuration windows:
Object General information about the object
Content Content of the object in the XML form
Events Definition of object events algorithms
Parameters Definition of the data group parameters of the OPC client
Data Data definition of the OPC group
Related objects:
PmVar(Variable) Object represents one data item of the object
ExtOpcClient An extension for connecting to the OPC DA communication.

History:
Pm8.03.00: ""onDataReceive" event" configurator can be set to "A = call the event for all registered variables (in this object and also in other PmaData objects)". This way it is possible to check any change of any variable in the onDataReceive event.
Pm9.00.00: Object name changed: PmOpcClientData -> PmaOpcClientGroup
PROMOTIC 9.0.6 SCADA system documentation - MICROSYS, spol. s r.o.

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