X20 system modules • Expandable bus controllers • X20BC80G3
1736
X20 system User's Manual 3.10
4.19.5.7 EtherCAT network address switch
A slave alias address can be set using the two network address switches on the bus controller. During the initial-
ization phase (during start-up), the bus controller writes the value of the address switch to the ESC register 0x12
or 0x13. However, the value is only accepted in the register if the value of the switch value is between 0x00 and
0xFA (decimal 250).
Switch position
Description
0x00 to 0xFA
Writes the address switch value to the "Station Alias" register.
0xFB to 0xFE
Address switch value not used. ESC Alias registers not changed.
0xFF
Address switch value not used. ESC Alias registers not changed. The bus controller boots with the default values
if the address switch is set to the value "0xFF" before a restart. All set parameters remain unchanged in flash
memory.
Table 516: Addresses
The master determines whether the alias address is used for the slave addressing by setting the corresponding
bit in the ESC DL control register (bit 24).
4.19.5.8 Slot
The bus controller is equipped with an additional slot. The X20HB28G0 EtherCAT junction module is operated in
this slot. The junction module is equipped with two RJ45 connections, which means that four ports are available.
HB28G0
BC80G3
PS
...
X20 modules
4x with X20BB81
BC +
Junction
Figure 565: Four ports available on the bus controller
Summary of Contents for X20 System
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