Hardware Installation
If you have to change the address of the board, go on with step 7 otherwise go on with step
8.
7.
Setting the PC/104-bus-I/O-port address
The address is set via the coding switch S100. Its position can be taken from figure 2 on
page 9.
If a coding switch is set to ‘OFF’, the according address is evaluated as ‘1'. If it set to ‘ON’,
the according address is evaluated as ‘0'.
Coding switch: 1
2
3
4
5
6
7
8
ON
PC/104-port address:
A9 A8 A7 A6 A5 A4 A3
--
OFF
Table 1:
Coding switch S100
The hardware address has to be given to the driver during the software installation. The
menu of the installation program offers a choice of the following addresses:
Figure 4:
Default setting of coding switches and choices of addresses supported by
installation program
The installation program does not support any other coding switch positions.
If you use a Windows 9x/ME operating system, you have to set the coding switches as
proposed by the Windows-Hardware Wizard.
8.
Install the CAN module at the selected PC/104-stack position.
9.
Close the computer case.
10. Connect the CAN wire.
Please note that the CAN bus must be terminated at both ends.
Additionally, the CAN_GND must be connected to earth at exactly one point in the CAN
network. Use the special T- connectors and terminator connectors offered by esd.
A CAN device whose CAN interface is not electrically isolated acts as an earth connection
like the CAN_GND.
Please pay attention to the notes on correct wiring of CAN networks (see from page 25)!
The first CAN interface (CAN network 0) is connected via the DSUB connector (X400) and
the second CAN interface (CAN network 1) is connected via the DSUB connector (X401).
CAN-PC104/331
Hardware Manual • Doc. No.: C.2012.21 / Rev. 1.6
Page 13 of 32
0x100 - 0x107 HEX
0x250 - 0x257 HEX
0x2A0 - 0x2A7 HEX
0x390 - 0x397 HEX
0x3F0 - 0x3F7 HEX
0x1E0 - 0x1E7 HEX
0x1E8 - 0x1EF HEX
1 2 3 4 5 6 7 8
OFF
1 2 3 4 5 6 7 8
OFF
1 2 3 4 5 6 7 8
OFF
1 2 3 4 5 6 7 8
OFF
1 2 3 4 5 6 7 8
OFF
1 2 3 4 5 6 7 8
OFF
1 2 3 4 5 6 7 8
OFF
Default Setting
Coding switch = 'ON'
(address bit = 0)
Coding switch = 'OFF'
(address bit = 1)
Coding switch =
don't care
