The products all conformed to the Sercos interface Pack Profile, a subset of the Sercos interface functions defined specifically for packaging machinery. (Sercos stands for Serial Real-time Communication System, a high-speed serial communication link for transferring standardized data in real-time over a noise-immune fiberoptic cable.) The pack profile was developed by Sercos N.A. in response to an OMAC Packaging Workgroup (OPW) vision of a standard interface for all motion control products.
The demonstration used the Sercos interface (IEC 61491) and Pack Profile along with the PLCopen (IEC 61131-3) international standards and OMAC guidelines for interoperability called PackML. PackML is a standard method for packaging machines to communicate data and commands to one another and to high-level factory computer systems.