Hardware-Installation
Manual • Doc.-No.: C.3030.21 / Rev. 1.4
CAN-CBX-AI420
Page 18 of 103
3.3 Coding Switch
Fig. 4: Position of the coding switches
Attention:
At the moment the module is switched ‘on’, the state of the coding switches is
determined. Changes of the settings therefore have to be made before switching on the
module, because changes of the settings are not determined during operation.
After a reset (e.g. NMT reset) the settings are read again.
3.3.1 Setting the Node-ID via Coding Switch
The address range of the CAN-CBX-module can be set decimal from 1 to 127 or hexadecimal from 01
h
to 7F
h
.
The three higher-order bits (higher-order nibble) can be set with coding switch HIGH, the four lower-
order bits can be set with coding switch LOW.
Note:
Avoid the following settings:
Setting the address range of the coding switches to values higher than 7F
h
causes error
messages, the red CAN-Error LED is on.
If the coding switches are set to 00
h
, the CAN-CBX-module changes into Bootloader
mode.
