Technical data • Individual components
86
Panel PC 2100 swing arm user's manual V1.12
3.4.1.3.2 CAN bus 1 interface - Pinout
The CAN bus 1 interface on the system unit is referred to as IFx.
A terminating resistor can be enabled or disabled for the CAN bus 1 interface. The L1 LED status indicator indicates
whether the terminating resistor is enabled or disabled.
CAN bus 1 - IFx
1)2)
The electrically isolated CAN bus interface is a 10-pin female connector.
Transfer rate
Max. 1 Mbit/s
Bus length
Max. 1000 m
Pin
Assignment
1
-
2
Shield
3
-
4
-
5
CAN H
6
CAN L
7
CAN GND
8
-
9
-
10
-
10-pin, male
1 3 5 7
2 4 6 8 10
9
Table 65: 5ACCIF01.FPCC-000 - CAN bus 1 interface
1)
The interfaces, etc. available on the device or module have been numbered as such for easy identification. This numbering may differ from that used by
the particular operating system.
2)
This interface can only be used in Automation Runtime and is referred to as IF3 in Automation Studio / Automation Runtime. It is not a "PC interface" and
therefore not shown in BIOS.
CAN driver settings
The baud rate can be set in Automation Studio either with predefined values or with 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 66: CAN driver settings
CAN1 - Bus length and cable type
The type of cable to be used depends largely on the required bus length and number of nodes. The bus length is
determined by the bit rate. In accordance with CiA (CAN in Automation), the maximum bus length is 1000 meters.
The following bus lengths are permitted with a maximum oscillator tolerance of 0.121%:
Extension
Transfer rate
≤1000 m
Typ. 50 kbit/s
≤200 m
Typ. 250 kbit/s
≤100 m
Typ. 500 kbit/s
≤15 m
1)
Typ. 1 Mbit/s
Table 67: CAN1 - Bus length and transfer rate
1)
The specified cable length is only valid with the values specified in
. Cable lengths additionally depend on the values in the
timing register.
