The SIMATIC Mobile Panel 277(F) IWLAN communicates via the WLAN Standard IEEE 802.11 a(b/g) via PROFINET. The Mobile Panel 277F IWLAN devices also support PROFIsafe communication.

There are five device variants with V2:

For mobile operation and monitoring via WLAN:

• Mobile Panel 277 IWLAN V2
• Mobile Panel 277 IWLAN V2 with handwheel, key switch and illuminated pushbuttons

As fail-safe device for safety-oriented operation as well:

• Mobile Panel 277F IWLAN V2 with acknowledgement button and emergency stop button
• Mobile Panel 277F IWLAN V2 with acknowledgement button, emergency stop button, handwheel, key switch and illuminated pushbuttons
• Mobile Panel 277F IWLAN RFID Tag (for V2 only)

For the versions Mobile Panel 277F IWLAN (PROFIsafe), the following system prerequisites apply:

• The Mobile Panel must be connected as a safe device (PROFIsafe, Distributed Safety)
• Use of a SIMATIC F-CPU

X = Recommended

! = Requirement

- = Not required

The Mobile Panel 277(F) IWLAN can be connected to:

• SIMATIC S7-200/300/400 (one F-CPU required for integrating the Mobile Panel 277F IWLAN and SIMOTION (Mobile Panel 277 IWLAN V2 or higher, or Mobile Panel 277F IWLAN V2 or higher (WinCC flexible 2008 SP3 or higher))

Note:
Further information can be found under "System interfaces". The Function Manuals "Fail-Safe Operation of the Mobile Panel 277F IWLAN" are available for downloading in English, German, and Japanese.

http://support.automation.siemens.com/WW/view/en/31255853