X20 system modules • Compact CPUs • X20CP0201, X20CP0291, X20CP0292
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X20 system User's Manual 3.10
X20CP0291 and X20CP0292
LED status indicators
IF1 - RS232
IF3 - CAN bus (with BB27)
IF2 - Ethernet
Node number switch
Terminal block for CPU
and I/O supply
RS232 connection
CAN bus connection (with BB27)
Switch for CAN bus terminating
resistor on BB27
Figure 249: X20 compact CPUs - Operating elements for X20CP0291 and X20CP0292
4.9.2.6 Node number switches
Figure 250: 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 211: X20 CPUs - Operating modes
X20CP0201
When used with the X20BB27 bus module, the X20CP0201 has access to a CAN bus interface. The INA2000
station number for CAN is set using the node number switches.
X20CP0291 and X20CP0292
Both of these CPUs are equipped with an onboard Ethernet interface. When used with the X20BB27 bus module,
they also have 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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