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AVEVA™ Communication Drivers

DDE/SuiteLink to ArchestrA Conversions

  • Last UpdatedAug 19, 2024
  • 1 minute read

In the case of the Gateway Communication Driver receiving (write) data from a DDE/SuiteLink source and sending it to an ArchestrA client, it converts DDE/SuiteLink types to ArchestrA types as follows:

Note: Write failures can occur if the target ArchestrA attribute is a non-coercible type. In this case, the GatewayCommunication Driver returns a failed write status to the client.

DDE/SuiteLink Type

ArchestrA Type

Comments

Discrete

Boolean

False = 0, True = 1

Real

Float

Integer

Integer

Gateway Communication Driver does no clamping when writing an integer from a DDE/SuiteLink client to an ArchestrA data source. In the case of a client poking a number greater than 2147483647 or
-2147483647, the target link changes the data to a 1 or -1, respectively.

String

String

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