Rated Voltages; Required Properties Of The Wlan Connection - Siemens SIMATIC HMI Operating Instructions Manual

Protection against foreign objects and water
Note
The HMI device only complies with the quoted safety classes if the plugs in the cable entries
have sealing caps.
Degree of protection in accordance with
IEC 60529
Front panel and rear panel
3.4

Rated voltages

The following table shows the permissible rated voltage and the relevant tolerance range for
the charging station.
Nominal voltage
+24 VDC
The following table shows the possible, permissible rated voltage for the tabletop power
supply unit.
Nominal voltage
230 VAC
120 VAC
3.5

Required properties of the WLAN connection

Please observe the installation guidelines when installing the WLAN network. Further
information on this is available in the system manual "Fundamentals of industrial wireless
LAN", in the "Network architecture" chapter.
NOTICE
As a basic principle, WLAN in accordance with IEEE 802.11 a should be used with the
Mobile Panel 277F IWLAN.
We recommend you not to use roaming in applications with PROFIsafe communication.
Mobile Panel 277F IWLAN
Operating Instructions, 12/2007, A5E01003940-01
Description
HMI device:
IP65
•
For the charging station and transponder:
IP65
•
Tolerance range
19.2 V to 28.8 V (–20%, +20%)
Tolerance range
170 to 264 V
85 to 132 V
Planning application
3.4 Rated voltages
57