Siemens SIMATIC 277 IWLAN Getting Started page 43

In order to test the WLAN functionality, create a project which displays the qua-
lity of the wireless network and the strength of the signal on the Mobile Panel.
Then transmit the project on a wireless basis from the configuring PC to the
Mobile Panel.
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HMI Device Mobile Panel 277 IWLAN
Getting Started, 04/2008, A5E01004533-01