Technical data • Individual components
66
Automation PC 3100 user's manual V0.60
The material used for the cable should have all of the following properties or deviate from them as little as possible
to achieve an optimal transfer rate.
CAN cable
Property
Signal lines
Cable cross section
Wire insulation
Conductor resistance
Stranding
Shield
2x 0.25 mm² (24 AWG / 19), tinned copper stranded wire
PE
≤82 Ω/km
Wires stranded in pairs
Paired shield with aluminum foil
Ground line
Cable cross section
Wire insulation
Conductor resistance
1x 0.34 mm² (22 AWG / 19), tinned copper stranded wire
PE
≤59 Ω/km
Outer jacket
Material
Properties
Complete shielding
PUR compound
Halogen-free
Composed of tinned copper wires
Table 73: CAN cable requirements
3.5.2.3.4 CAN driver settings
The baud rate can be set in Automation Studio either with predefined values or the bit timing register. For additional
information, see Automation Help.
Bit timing register 1
Bit timing register 0
Baud rate
00h
14h
1000 kbit/s
80h or 00h
1Ch
500 kbit/s
81h or 01h
1Ch
250 kbit/s
83h or 03h
1Ch
125 kbit/s
84h or 04h
1Ch
100 kbit/s
89h or 09h
1Ch
50 kbit/s
Table 74: CAN driver settings
3.5.2.3.5 Terminating resistor
A terminating resistor for the CAN interface is already integrated in the IF option. The terminating resistor is switched
on or off using a switch, but the system unit must be opened to reach it. A switched-on terminating resistor is
indicated by a yellow LED.
Switch for
terminating resistor
LED for terminating resistor
Figure 13: 5AC901.ICAN-00 - Terminating resistor
3.5.2.3.6 Drivers
The CAN IF option is supported in PVI for Windows XP Professional and Windows Embedded Standard 2009.
Interface option 5AC901.ICAN-00 will be supported starting with Windows 7 by PVI V4.2.5 or Windows CAN driver
V3.0.
