Chapter 2 Decentral block periphery CAN-Bus CANopen
Manual VIPA System 100V
2-18
HB100E - SM-CAN - Rev. 15/02
Baudrate and module-ID settings
You have the option to specify the baudrate and the module-ID by setting
the address selector to 00 within a period of 10s after you have turned on
the power supply.
The selected settings are saved permanently in an EEPROM and can be
changed at any time by means of the procedure shown above.
•
Set the address selector to 00.
•
Turn on the power to the CAN-Bus coupler
The LEDs ER, RD, and BA will blink at a frequency of 1Hz. For a period
of 5s you can now enter the CAN-Baud rate means of the address
selector:
Address selector
CAN baudrate
guaranteed max. bus length
"00"
1 MBaud
25 m
"01"
500 kBaud
100 m
"02"
250 kBaud
250 m
"03"
125 kBaud
500 m
"04"
100 kBaud
600 m
"05"
50 kBaud
1000 m
"06"
20 kBaud
2500 m
"07"
10 kBaud
5000 m
0 1
"08"
800 kBaud
50 m
After 5 seconds the selected CAN baudrate is saved in the EEPROM.
The LEDs ER and BA are extinguished and the green RD-LED still
blinks.
Now you have another 5s for adjusting the module-ID.
•
Define the module-ID in a range between 01...99 by means of the
address selection switch. Every module-ID may only exist once on the
bus. The module-ID must be defined before the bus coupler is turned on.
The entered module-ID's are accepted when a period of 5s has expired
after which the bus coupler returns to the normal operating mode
(status: "Pre-Operational").
You can also modify the CAN baudrate by means of an SDO write
operation to the object "0x2001". The entered value is used as the CAN
baudrate when the bus coupler has been RESET. This method is most
convenient when you must change the CAN baudrate of all the bus
couplers of a system from a central CAN terminal. The bus couplers use
the programmed baudrate when the system has been RESET.
Overview
Adjusting the
baudrate at the
address selector
Selecting
module-ID
Adjusting the
baudrate via
SDO-Write