Promotic

DDE - tab of the PmaObject object

Description:
Common conditions for data sharing in the running application by the DDE are defined in the "DDE" configuration window.
The application can be defined against some applications as the client and at the same time against other applications as the server.
"DDE client" configurators:
See: Setting as DDE client
DDE groupSelection of the DDE client group where the item has to be shared.
DDE itemName under which the object data will be provisioned for sharing. Within one client group this name must be unique.
Macro expression can be used for input (it is evaluated after the application is launched).
Init. synchronizationIt is set for a case when the application-server is running. Item values in the application-client and in the application-server are synchronized by one of three options.
None
Read from server
Write to the server
Write to the serverDefinition when the changed value will be sent to the server (No, On local change, On every writing).
No
On local change
On every writing
Reading from server at server changeIf checked, then reading from server will proceed just on the content change of the item on the server (the server operates the item).
Write to serverIf checked, then writing the item to the server will proceed in the defined period.
Reading from serverIf checked, then reading the item from server will proceed in the defined period.
PeriodThe period of reading or writing the item in seconds. This value is meaningful only when the "Write to server" or "Reading from server" configurator is checked.
"DDE server" configurators:
See: Setting as DDE server
Item sharingOption of the item provision for sharing with client applications
Default
Share
Not share
DDE itemName under which the item will be provisioned for sharing with client applications. Macro expression can be used for input (it is evaluated after the application is launched).
Note:
This tab is visible only if DDE is globally allowed in the "DDE enabled" configurator.
PROMOTIC 9.0.27 SCADA system documentation MICROSYS, spol. s r.o.

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