Object PmCommMsg (Communication message)

See: PmCommMsg - Deatiled object description
The object serves to the definition of the format and data of one communication message.
No other PROMOTIC objects can be created in this object. The PmCommMsg object can be created only in the PmComm object (if the selected protocol supports the usage of the PmCommMsg object). There can be even more PmCommMsg objects in the PmComm object.

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

This object adopts properties and methods of object PmObject.
Properties and methods:
AutoRunEnabled Enable/disable the automated transmissions
AutoRunPeriod The period of automated transmissions
GetCount Returns the number of transmissions
GetReady Detects whether the PmCommMsg object is ready to transfer the message
LastErr Error number of the last communication message transfer
LastTextErr Text error description of last communication message transfer
ReadVars Access to variables on the Data-received page
Run Command for transferring the message (only for Master messages)
WriteVars Access to variables on the Data-sent page
onBeginOfTransfer Fires always before transmitting the Master message starts
onDataReceive Fires after the successful data reading
onEndOfTransfer Fires after the transfer of the whole message
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 communication message parameters
Data-sent List of variables for the write
Data-received List of variables for the read
List of subobjects:
Var(Variable) Object represents one data item of the object
PROMOTIC 8.3.30 SCADA system documentation - MICROSYS, spol. s r.o.

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