System features
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X20 system User's Manual 3.10
2.15 Configurable X2X Link address
The remote X2X Link backplane, which connects the individual I/O modules with each other, is set up to be self-
addressing. Because of this, it is not necessary to set the node numbers. The module address is assigned according
to its position in the X2X Link line.
In certain cases, e.g. when configurations of modular machines change, it is necessary to define specific module
groups at a fixed address, regardless of the preceding modules in the line.
For this purpose, there are modules in both the X20 system and the X67 system with node number switches that
allow you to set the X2X Link address. All subsequent modules refer to this offset and use it automatically for
addressing purposes.
Bus module with
node number switches
#10
X2X Link
#11 #12
#30 #31
#20 #21 #22
#50 #51 #52
X20 system
X67 system
Figure 12: Setting the X2X Link address
Summary of Contents for X20 System
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