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Operation Manual 37107F
MFR 3 - Multi Function Relay
Page 30/165
© Woodward
Maximum CAN Bus Length
The maximum length of the communication bus wiring is dependent on the configured Baud rate. Refer to Table
3-1 for the maximum bus length (Source: CANopen; Holger Zeltwanger (Hrsg.); 2001 VDE VERLAG GMBH,
Berlin und Offenbach; ISBN 3-8007-2448-0).
Baud rate
Max. length
1000 kbit/s
25 m
800 kbit/s
50 m
500 kbit/s
100 m
125 kbit/s
250 m
50 kbits/s
1000 m
20 kbit/s
2500 m
Table 3-1: Maximum CAN bus length
The maximum specified length for the communication bus wiring might not be achieved if wire of poor quality is
utilized, there is high contact resistance, or other conditions exist. Reducing the baud rate may overcome these is-
sues.
DPC - Direct Configuration Interface
NOTE
To configure via the configuration interface (direct configuration) you need the configuration cable (or-
dering code "DPC"), the program LeoPC1 (delivered with the cable) and the corresponding configura-
tion files. Please consult the online help installed when the program is installed for a description of the
LeoPC1 program and its setup.
If the parameter "Direct config." is switched to ON, the communication via the interface on termin-
als X1-X5 is disabled.