X20 system modules • Fieldbus CPUs • X20XC0201, X20XC0202, X20XC0292
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X20 system User's Manual 3.10
4.21.2.6 Node number switches
Figure 571: Node number switches
The node number is set using the two hex switches. The switch setting can be evaluated by the application program
at any time. The operating system only evaluates the switch position when the device is switched on.
Switch position
Operating mode
Description
0x00
BOOT
In this switch position, the operating system can be installed via the RS232 interface configured
as the online interface. User Flash is deleted only after the update begins.
0x01 - 0xFE
RUN
RUN mode, the application is running.
0xFF
Diagnostics
Boots the CPU in Diagnostics mode. Program sections in User RAM and User FlashPROM are
not initialized. Following diagnostics mode, the CPU always boots with a
cold restart
.
Table 529: X20 CPUs - Operating modes
X20XP0201 and X20XP0202
When used with the X20BB37 or X20BB47 bus module, the CPUs have access to a CAN bus interface. The
INA2000 station number for CAN is set using the node number switches.
X20XP0292
This CPU is equipped with an onboard Ethernet interface. When used with the X20BB37 or X20BB47 bus module,
it also has access to a CAN bus interface.
The number set using the two hex switches defines the INA2000 station number of both the CAN and the Ethernet
interface.
Summary of Contents for X20 System
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