DDE/SuiteLink Data Conversion

A key part of OI Gateway’s protocol conversion capabilities is its data type conversion between DDE, SuiteLink, and OPC sources and clients.

Note: Since InTouch communicates through DDE or SuiteLink protocols, its data type conversions are covered in the following sections that address DDE and SuiteLink conversion.

Each protocol has a set of supported data types for the values that can be accessed. The following sections describe the data conversion mapping scheme applied by OI Gateway.

Note: If a client pokes an out-of-range value for any data type, OI Gateway does no clamping on the value. OI Gateway passes the client request to the server.