X20 system modules • X20 CPUs
X20 system User's Manual 3.10
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4.12 X20 CPUs
The X20 CPUs are a powerful addition to the X20 system. With the exception of the entry level model, all CPUs are
based on Intel ATOM
™
processors, which are available in various performance classes. Each CPU is available
with either one or three slots for interface modules.
Flexible communication options onboard
In addition to one CompactFlash, two USB and two RS232 interfaces, there are also two independent Ethernet
interfaces. One of them is a standard gigabit Ethernet interface for TCP/IP data traffic.
Behind the second female RJ45 connector, there is a pure Fast Ethernet interface (100 Mbit/s) that serves as a
POWERLINK interface. This means that no additional POWERLINK interface is needed to operate a POWERLINK
network.
Easy maintenance
A special feature of the CPU modules is that they are operated fan-free. The CPU can be operated throughout
the full temperature range of the X20 system (-25 to 60°C). Depending on the model, derating may be required
over 55°C.
The built-in SRAM buffer battery can be exchanged during operation as long as local regulations allow it. When the
battery is exchanged with the power off, the SRAM is buffered for approximately 1 minute. This makes maintenance
work very simple.
Summary of Contents for X20 System
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