Specifications

SIMATIC HMI Mobile Panels 19
Maximum mobility in operator control and monitoring –
wireless and with complete safety functionality
The SIMATIC HMI Mobile Panel 277(F) IWLAN is a world-
wide novelty in the field of operator control and monitor-
ing: a wireless operator panel with full HMI functionality.
Two versions are available: one device for wireless opera-
tor control and monitoring without safety functionality
and one with safety functionality. in addition there is the
option of using the SIMATIC HMI Mobile Panel 277 (F)
IWLAN for SIMOTION applications as well.
Certified safety
The SIMATIC HMI Mobile Panel 277F IWLAN has two acknowl-
edgement buttons and one emergency stop button. A fail-safe
SIMATIC F-CPU must be used to be able to utilize the safety
functions. For industrial plants, the use of SIMATIC Industrial
Wireless LAN is recommended. The suitability of the device for
particularly high safety requirements was tested and certified
by TÜV (SIL 3). The necessary radio approvals already exist for
worldwide use.
Definite effective ranges
The SIMATIC WinCC V11 engineering software can be used to
define ranges from which the machine can be operated with
acknowledgement buttons. Within these "effective ranges",
the device is identified by means of transponders or in an ad-
ditional version by means of economical RFID tags (MOBY D
Smart Cards). This ensures reliable operation and the clear as-
signment of suitable operating screens and operator authori-
zations from any point in the plant.
Location-dependent behavior can also be defined for the
SIMATIC HMI Mobile Panel 277 IWLAN (without safety func-
tion). Here the transponder can generate zones where specific
functions are configured, e.g. an automatic screen selection or
operator authorizations for specific persons.
Rugged for tough industrial environments
With its IP65 degree of protection and a drop height of over
one meter, the device can be optimally used in tough industri-
al environments. The powerful batteries can be replaced with-
out interrupting operation. This ensures trouble-free operation.
WLAN area and effective range
The WLAN area is the area in the plant where the operator
panel communicates with an access point over a wireless local
area network.
As soon as the PROFIsafe communication between the con-
troller and operator panel is established in the WLAN area, the
emergency stop button on the operator panel becomes active.
1 Access point as network gateway from WLAN to the PROFINET
2 WLAN area in which communication with the SCALANCE W access point
is possible
3 Mobile Panel in the effective range/zone
Fail-safe operation of the plant with the acknowledgement
buttons only becomes possible when the operator panel is
logged on in an effective range (defined by transponders or RFID
tags) within the WLAN area. Due to its high safety standard, the
device satisfies safety category SIL 3.
Rapid Roaming
The Mobile Panel 277F IWLAN communicates by means of the
extended WLAN access procedure iPCF-MC (industrial point
coordination function with management channel). This pro-
cedure – also known as "rapid roaming" – ensures almost un-
interrupted handover of the wireless signals between the indi-
vidual access points.
Mobile Panel 277F IWLAN (left) and 277 IWLAN (right)
1
2
2
3
PROFIsafe
G_ST80_XX_00393
© Siemens AG 2011