Simplified Safety: New Wireless Safety Mobile Panel
Failsafe, wireless operator control and monitoring via Rapid Roaming
Siemens Industry Automation Division has improved the performance and equipment of its portable devices for wireless operator control and monitoring of machinery and plants, as well as enhancing them with additional functions. For safety-oriented applications, the Mobile Panel 277F IWLAN communicates via a "Rapid Roaming" process in order to ensure interruption-free transmission of the wireless signals. Optimization measures in the Mobile Panel 277 IWLAN and Mobile Panel 277F IWLAN for safety-related applications include color display of the WLAN signal strength with an additional vibration alarm, which is triggered when a specific lower limit threshold is violated. Handling of the enabling button has also been improved.
For safety-oriented applications, the 277F IWLAN Mobile Panel communicates by means of the extended WLAN access procedure iPCF-MC (Industrial Point Coordination Function with Management Channel), also known as "Rapid Roaming". This ensures fast handover of the radio signals between access points and interruption-free roaming times - a basic requirement for mobile operator control and monitoring in safety-related areas where enabling and emergency stop buttons are used. The Mobile Panel 277F IWLAN is suitable for use in a Profinet-based network with a Profisafe profile and IWLAN infrastructure with Scalance W access points from Siemens.
The configuration of the Industrial WLAN connection has been simplified for both new Siemens panels with a software wizard available via web interface. Multiple wireless approvals mean that the devices can be used all over the world. The Mobile Panel 277 IWLAN without safety functions is also suitable for applications with the Simotion motion control system.
One of the new failsafe Mobile Panel 277F IWLAN variants utilizes economical Moby D Smart Cards for site localization, with logging on to the appropriate operating area on an RFID (Radio Frequency Identification) tag instead of a transponder. A typical application here is in security-compliant robot cells.
Further information can be found on the Internet at: www.siemens.com/panels
Visit www.usa.siemens.com/hmi for more information.
|Search the online Automation Integrator Guide|
Case Study Database
Get more exposure for your case study by uploading it to the Control Engineering case study database, where end-users can identify relevant solutions and explore what the experts are doing to effectively implement a variety of technology and productivity related projects.
These case studies provide examples of how knowledgeable solution providers have used technology, processes and people to create effective and successful implementations in real-world situations. Case studies can be completed by filling out a simple online form where you can outline the project title, abstract, and full story in 1500 words or less; upload photos, videos and a logo.
Click here to visit the Case Study Database and upload your case study.