Beckhoff C6915, Manual

Page: 25 / 44

Commissioning
C6915 25 Version: 2.0
4.4 Switching the Industrial PC on and off
First switching on and driver installation
NOTE
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.
The Industrial PC is started when the system is switched on or when the power supply is connected.
When you switch on the Industrial PC for the first time, the pre-installed operating system (optional) 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.
If you have ordered the PC without an operating system, you must install this and the driver software for the
additional hardware you have connected and for the devices in the PC yourself. Please follow the
instructions in the documentation for the operating system and the additional devices.
Switching off the Industrial PC
NOTE
Data loss due to running software
Switching off the Industrial 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.
NOTE
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 Beckhoff concept (see below) to shut down the operating system in a battery-friendly manner.
When the system is switched off or disconnected from its own power supply, the Industrial PC is also
switched off.
If you have an Industrial PC with a UPS and simply switch off the power supply, the operating system shuts
down via the battery. With frequent use, this shortens the life of the battery.
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.
If 24 V is then applied to the input PC_ON via a switch, the operating system shuts down properly. The
PC_ON signal is inverted, i.e. the operating system shuts down when 24 V is applied.
Once the operating system has shut down, the PC power supply unit sets the output power status from 24 V
to 0 V. This indicates that the shutdown is complete and you can turn off the power supply. Via the output,
you can switch, for example, a contactor that switches off the entire system. The maximum load for the
Power Status output is 0.5 A and a suitable fuse should be provided.
You can assign different access rights to all users in the operating system and in the application software.
Since there is a risk of data loss if the Industrial PC is switched off incorrectly, assign the rights advisedly. A
user who is not allowed to terminate the software should not be allowed to switch off the Industrial PC.
UPS software components