After 17 years, the 17th edition of the WFCS is back in Austria. This time in the beautiful city of Linz in Upper Austria. The WFCS is the largest IEEE conference especially dedicated to communications for industrial automation systems. It is held the first time in Linz, Austria, an industrial emerging area with leading industries. It is a melting pot of academia and industry. This fact is shown by the local organizer mix of this WFCS which are Johannes Kepler University Linz, Silicon Austria Labs, and Linz Center of Mechatronics GmbH. The WFCS is supported by IEEE and IES and led by the IEEE TC on Factory Automation, and will be hosted by the Johannes Kepler University Linz between the 9th and 11th of June 2021.