Introduction

The Cross Reference feature allows communication between simulation engines. It represents the actual wires from a field device (or transmitter) to the control system, and acts as a conduit between various engines.

The cross reference database acts like an I/O cabinet, tying model values to Foxboro Evo I/O blocks (AIN, AOUT, etc.). The cross reference database contains (among other things) the definition of each model variable, the scaling factors (such as unit of measurement conversions), and the control point referenced by each variable. For the SCP implementation, the cross-reference data is obtained directly from the controls configuration after it has been downloaded to the SCP computers.