Back from ISA Expo 2009 in Houston. Attended several class for wireless technologies and ISA100.11a. It looks to be a very good standard and should help bring order to the wireless landscape to the instrumentation/process/industrial automation industries.
I attended a one day class taught by Dr. Peter Fuhr, and several technical conferences about wireless systems and technologies. A tool that Dr. Fuhr was using caught my eye. He had a RF spectrum analyzer on his computer that only cost $200, that would be get for my work. It’s from Metageek and comes in 2.4 GHz and a 900 MHz version.
“This standard is intended to provide reliable and secure wireless operation for non-critical monitoring, alerting, supervisory control, open loop control, and closed loop control applications. This standard defines the protocol suite, system management, gateway, and security specifications for low-data-rate wireless connectivity with fixed, portable, and moving devices supporting very limited power consumption requirements. The application focus is to address the performance needs of applications such as monitoring and process control where latencies on the order of 100 ms can be tolerated, with optional behavior for shorter latency.
To meet the needs of industrial wireless users and operators, this standard provides robustness in the presence of interference found in harsh industrial environments and with legacy non-ISA100 compliant wireless systems. As described in Clause 4, this standard addresses coexistence with other wireless devices anticipated in the industrial workspace, such as cell phones and devices based on IEEE 802.11x, IEEE 802.15x, IEEE 802.16x, and other relevant standards. Furthermore, this standard allows for interoperability of ISA100 devices, as described in Clause 5.” – ISA page (ISA-100.11a-2009)