Overview
1. Overview
1.1 Description of the Module
Figure 1:
Block circuit diagram of CAN-PCIe/200
The CAN-PCIe/200 is a passive CAN interface board for PCI Express with one, or optionally two
CAN interfaces.
The ISO 11898-2 CAN interface allows a maximum data transfer rate of 1 Mbit/s. Among many
other features of the CAN interfaces, the baud rate can be set by software.
The maximum effective CAN bit rate value may be limited by the performance of the host CPU,
because this is a passive CAN module without a microcontroller on board.
The CAN interface is electrically isolated from the other potentials by optocouplers and DC/DC-
converters.
The CAN-PCIe/200 is equipped with four LEDs in the front panel.
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Hardware Manual • Doc. No.: C.2042.21 / Rev. 1.5
CAN-PCIe/200
+12 V=
+5 V=
+12 V=
+5 V=
C
A
N
B
U
S
CAN
CAN
LEDs
PLD
Physical
CAN
Layer
C
A
N
B
U
S
Electrical Isolation
DC/DC
Converter
DSUB9
CiA pinning
CAN Controller
SJA1000
PCI Express
Endpoint
PEX8311
Electrical Isolation
PCI Express Card Connector
CAN Controller
SJA1000
Physical
CAN
Layer
DSUB9
CiA pinning
2
nd
CAN Interface
only
CAN-PCIe/200-2
DC/DC
Converter