The ISA100 Wireless Compliance Institute has deployed, tested and approved ISA100.11a standard devices in a multi-vendor installation of technology at an Arkema ( chemical plant in Crosby, Texas. The objective of the installation is to demonstrate interoperability among multiple vendor devices using the ISA100.11a technology.

The system has been operating at Arkema since September, 19 2009, 10 days after the ISA100.11a standard was ratified. The development of stacks, transmitters, and compliance tools was performed while the ISA100.11a standard was being finalized by ISA to streamline the deployment.

Suppliers participating in the Arkema site installation include Gastronics (, Honeywell (, Nivis (, Wilson Mohr (, Wireless Access Solutions (formally Gooch Engineering) and Yokogawa ( Sensors from additional WCI supplier members will be added to the ISA100.11a network beginning in October 2009 as part of the ongoing WCI facilitated Arkema user deployments.

ISA100.11a applications at the site included temperature, pressure, contact closure, valve positioning, gas detection, corrosion detection, and others. The entire site is currently covered by two backbone connections and sensor meshing. A white paper detailing the user deployment and early results is available for download from the WCI website at