B&R Automation PC 3100 User Manual page 78

Technical data
Preferably, the cable material used should have the following properties or deviate only slightly from them in order
to achieve an optimal transfer rate.
CAN cable
Signal line
Cable cross section
Wire insulation
Conductor resistance
Stranding
Shield
Ground conductor
Cable cross section
Wire insulation
Conductor resistance
Outer jacket
Material
Properties
Cable shield
2.3.5.3.3.4 CAN driver setting
The baud rate can be set either with predefined values or via the bit timing register. For additional information, see
Automation Help or the technical description of the B&R CAN driver.
Bit timing register 1
00h
80h or 00h
81h or 01h
83h or 03h
84h or 04h
89h or 09h
2.3.5.3.3.5 Terminating resistor
A terminating resistor for the CAN interface is already integrated in the IF option. A switch is used to switch the
terminating resistor on or off, but it is necessary to open the system unit for this purpose. A switched-on terminating
resistor is indicated by a yellow LED.
2.3.5.3.3.6 Drivers
The CAN IF option is supported in PVI for Windows XP Professional and Windows Embedded Standard 2009.
Interface option 5AC901.ICAN-00 is no longer supported by PVI V4.2.5 or Windows CAN driver V3.0 starting with
Windows 7.
78
2x 0.25 mm² (24AWG/19), tinned copper stranded wire
1x 0.34 mm² (22AWG/19), tinned copper stranded wire
Table 84: CAN cable requirements
Bit timing register 0
14h
1Ch
1Ch
1Ch
1Ch
1Ch
Table 85: CAN driver settings
Switch for
terminating resistor
LED for terminating resistor
Figure 12: 5AC901.ICAN-00 - Terminating resistor
Automation PC 3100 User's manual V 1.00 Translation of the original documentation
Property
PE
≤82 Ω/km
Wires stranded in pairs
Pair shielding with aluminum foil
PE
≤59 Ω/km
PUR compound
Halogen-free
Composed of tinned copper wires
Baud rate
1000 kbit/s
500 kbit/s
250 kbit/s
125 kbit/s
100 kbit/s
50 kbit/s