For security-oriented applications, the Mobile Panel 277F IWLAN communicates via a "Rapid Roaming" process to ensure uninterrupted wireless signal transmission. Optimization measures in the Mobile Panel 277 IWLAN and Mobile Panel 277F IWLAN for security-related applications include a color display of WLAN signal strength with an additional vibration alarm that triggers when a lower threshold limit is exceeded.

For security-oriented applications, the 277F IWLAN Mobile Panel communicates via an iPCF-MC (Industrial Coordination Point Function with Channel Management) WLAN access procedure, also known as "Rapid Roaming." This ensures rapid radio signal delivery between access points and uninterrupted roaming times—a fundamental requirement for wireless operator control and surveillance in secure areas where emergency stop buttons are used. The 277F IWLAN Mobile Panel is suitable for use in a Profinet-based network with a Profisafe profile and an IWLAN infrastructure with Siemens Scalance W access points.

Setting up the industrial WLAN connection has been simplified for the new Siemens panels with a wizard software available via a web interface. Multiple wireless approvals mean the devices can be used worldwide. The Mobile 277 IWLAN panel without safety functions is also suitable for applications with the Simotion motion control system.

One variant of the new "Failsafe" 277F IWLAN panels uses cost-effective Moby D smart cards for location tracking, with registration in the corresponding operating area via an RFID (Radio Frequency Identification) tag instead of a transponder.
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