Power Management - Siemens SIMATIC HMI Operating Instructions Manual

Operator controls and displays

5.3 Power management

Functions
Effective range
Battery status
5.3 Power management
Introduction
The HMI device is equipped with a power management function. If you do not operate the
HMI device for a configurable time interval, power management will switch the HMI device to
power save mode. This extends the operation time of the HMI device until the next battery
change or charging of the battery.
States
Power management has two levels of power saving:
● "Power Save 1"
● "Power Save 2"
In WinCC flexible, power management is parameterized in "Device settings" under "Power
management".
98
Designation
RNG
BAT
Reduces the brightness of the touch screen.
– The touch screen is switched off.
– The function keys and associated LEDs are switched off.
– The handwheel and the illuminated pushbuttons are switched off.
– Other power save measures are activated.
Color Meaning
Green The "RNG" lights up when the HMI device is logged onto
the effective range.
If a communication error occurs after the HMI device has
logged onto the effective range, the "RNG" lights up until
PROFIsafe communication is reestablished and the
communication error has been acknowledged.
The "RNG" LED goes out when the HMI device logs off
from the effective range.
Green/ The "BAT" LED goes out under the following
red circumstances:
The main battery is empty
•
The main battery is not installed
•
The "BAT" LED flashes when the main battery is being
charged.
The "BAT" LED lights up red when the main battery has a
charging status of less than 10%.
The "BAT" LED lights up green when the main battery
has a charging status of at least 10%.
Operating Instructions, 12/2007, A5E01003940-01
Mobile Panel 277F IWLAN