Promotic

Object ExtComm

Description:
An extension of the PmVar variable of the PmaData object for connecting to the PmaCommGroup object (communication by the PROMOTIC communication drivers).
Properties and methods:
Group Returns the PmaCommGroup object
ItemId Text address/identifier of the variable for the corresponding communication type.
RecalcD Value of the D constant for recalculation
RecalcK Value of the K constant for recalculation
RecalcQ Value of the Q constant for recalculation
Var Returns the PmVar object
Configuration windows:
ExtComm Data 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 string:
The content of complete of data extension (all configurators) can be saved in the form of single string. See Format of saving the data extension in the form of 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 9.0.17 SCADA system documentation - MICROSYS, spol. s r.o.

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