Switching The Panel Pc On And Off - Beckhoff CP22 Series Manual

Commissioning
4.4

Switching the Panel PC on and off

Public networks
Connecting the PC to public networks without additional protective measures can compromise the safety of
the device.
• Protect the PC before connecting it to public networks.
Data loss due to switching off the PC while the software is running
Switching off the PC before the running software is terminated and the operating system is shut down can
lead to data loss.
• Quit the running software and shut down the operating system before switching off the PC.
Data loss due to switching off the power supply when the UPS battery is empty
Switching off the power supply when the UPS battery is empty can lead to data loss, as the operating
system cannot be shut down properly without battery power.
• Ensure that the UPS battery is charged in the event of a power failure.
• For UPS C9900-P209 and C9900-U209, charge the battery exclusively via the switched-on PC. Never
connect a charger.
Shortened battery life due to switching off the power supply
If the power supply is simply switched off, the operating system shuts down via the battery. With daily use,
this significantly shortens the life of the battery.
• Avoid switching off the power supply before shutting down the operating system.
• Use the PC-ON input (see the following description) to shut down the operating system in a battery-
friendly manner.
The industrial PC is started or switched off when the system is switched on or off or when the power supply
to the PC is connected or disconnected.
You can use the PC-ON input of the PC to control the startup and shutdown of the operating system. The
PC-ON signal is inverted, which is why the operating system boots up at 0 V at the input and shuts down at
24 V. During operation, 0 V must therefore be permanently applied to the input. If you want to shut down the
operating system, you must apply 24 V to the PC-ON input. Once the operating system has shut down, the
PC power supply unit sets the Power Status output from 24 V to 0 V. This indicates that the shutdown is
complete. You can then switch off the power supply. If you remove the 24 V from the PC-ON input before
you have switched off the power supply, the operating system restarts. Therefore, 24 V must be applied to
the PC-ON input until you have switched off the power supply.
To shut down the operating system properly, you can install an additional ON/OFF switch next to the
machine's main switch to turn the machine on and off. The main switch can thus remain switched on in
principle and thus ensures that the PC is still supplied with power during the shutdown of the operating
system. Via the Power Status output, you can switch, for example, a contactor that switches off the entire
system. The load capacity of the Power Status output is limited to max. 0.5 A. No fuse protection is required.
Driver installation
When you switch on the PC for the first time, the optionally pre-installed operating system will be started. For
any additional hardware you have connected, you have to install the drivers yourself afterwards. In addition,
the Beckhoff Device Manager starts automatically. The Device Manager is a software from Beckhoff that
supports you in configuring the PC.
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Version: 2.9 CP22xx