Promotic

Object ExtComm

Description:
An extension of the PmVar variable of the PmaData object for connection to the PmaCommGroup object (communication by the PROMOTIC communication drivers).
Properties and methods:
ExtIdData extension identifier
GroupReturns the PmaCommGroup object
ItemIdText address/identifier of the variable for the corresponding communication type
LastSendErrorSuccess rate of the last sent value
LastSendValueLast sent value
RecalcDValue of the D constant for recalculation
RecalcKValue of the K constant for recalculation
RecalcQValue of the Q constant for recalculation
VarReturns the PmVar object
Configuration windows:
ExtCommData extension configuration
Note:
This data extension registrates itself automatically into the PmaCommGroup object after starting the application. Therefore it is not needed to create the requested item on the "PmaCommGroup > Data" tab! If all items for the PmaCommGroup object are of the "Data extension" type, then the "PmaCommGroup > Data" tab may remain empty.

Format of saving the data extension in the form of a text string:
The content of complete of data extension (all configurators) can be saved in the form of single text string. See Format of saving the data extension in the form of a text string.
Id={Comm;PmaObject;ItemId;K;Q;D}
- Id: see the "Data extension identifier" configurator
- PmaObject: see the "Target object (PmaCommGroup)" configurator
- ItemId: see the "ItemID" configurator
- K;Q;D: see the "Value recalculation" configurator

History:
Pm8.03.00: Created
PROMOTIC 9.0.23 SCADA system documentation MICROSYS, spol. s r.o.

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