OPC Client to DDE/SuiteLink Data Source – Write Errors
- Last UpdatedMar 31, 2017
- 1 minute read
A failed write to a DDE/SuiteLink data source is handled as follows:
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If the data source responds with Nak, OI Gateway sends an E_FAIL error code to the OPC Client.
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If FSGateway cannot successfully convert the requested OPC data, this maps to a new vendor specific error for OPC indicating "Conversion Error" (OPC_E_BADTYPE).
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If the item handle is unknown to OI Gateway or the data source, the OPC_E_INVALIDHANDLE error code is sent.
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If the item name is not valid in OI Gateway or the data source, the OPC_E_UNKNOWNITEMID error code is sent.