Custom Interface Instructions (CIs) for the Siemens WinAC Soft PLC allow the addition of new instructions to the PLC’s standard instruction set. These instructions are used the same way as the built-in instructions, such as Add (ADD_I) or Jump (JMP). This extensibility of the instruction set allows easy customization of the Soft PLC to suit any needs.

The Advanced Engineering CI for Siemens WinAC PLC allows PLC programmers to query any ODBC-compliant database. Configuration settings such as the Data Source Name, user name and password are specified for each Data Source that will be accessed. This is all done without code outside of the PLC.

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