System features
X20 system User's Manual 3.10
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2.5 X20 Compact CPUs
2.5.1 General information
With a width of 37.5 mm the X20 Compact CPUs are extremely compact, yet surprisingly powerful. Less powerful
than the PC-based CPUs, there are several models of Compact CPUs available in 2 performance classes.
Compact CPUs are ideal for situations where cycle times in the millisecond range are sufficient and a cost-benefit
analysis plays a decisive role. A range of models with CAN bus and Ethernet can be perfectly adapted to all
requirements, resulting in extremely sleek automation solutions.
The Compact CPU's design and dimensions correspond to the X20 system. The X20 I/O modules are connected
directly to the CPU. These are attached seamlessly to the CPU, making the entire system an extreme space saver
in the control cabinet. Despite the sleek profile, the CPU supply, the X2X Link supply, and the I/O module supply
are integrated in the system. No additional power modules are necessary.
All CPUs have at least two things in common: multitasking capability and programming with B&R Automation Studio
using all relevant IEC61131-3 languages and C.
2.5.2 Product range
The many different variants start with the most space-saving solution, the X20 compact CPU. This module is
equipped with an RS232 online interface and an integrated X20 module connection. Selecting another bus module
also provides an additional onboard CAN bus interface. The upper end of the product range is characterized by
CPUs with a Fast Ethernet interface. The variant with Ethernet is also available with approx. 60% more processing
power.
Figure 6: X20 compact CPUs
