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.

This interface can only be used in Automation Runtime and is referred to as IF4 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. More

information on this can be found in the Automation Studio help system.

Bit timing register 1

00h

80h or 00h

81h or 01h

83h or 03h

84h or 04h

89h or 09h

CAN2 - Bus length and cable type

The type of cable used depends largely on the required bus length and the number of nodes. The bus length is

mainly 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

≤1000 m

≤200 m

≤100 m

<20 m

The specified cable length is only value with the values specified in Tab. 101 "CAN driver settings". In addition, cable lengths depend on the values in the

timing register.

126

CAN bus 2 - IFx

Max. 1 Mbit/s

Max. 1000 m

Assignment

Shield

CAN GND

CAN L

CAN H

Table 105: 5ACCIF01.FPCC-000 - CAN bus 2 interface

Bit timing register 0