Leuze electronic OMS2/120 CAN, Technical Description, Page: 15 / 44

electronic #Leuze Commissioning / Installation
#Leuze electronic GmbH + Co KG, Postfach 11 11, D-73277 Owen/Teck, In der Braike1, D-73277 Owen/Teck, Tel. ++49 (0)7021/5730, Fax ++49 (0)7021/573199
Date: 01.07.2003 LZ - ELE - BA - GB - 0009 - 00 Page 15 of 42
3.1.2.1 Bus termination
For the communication a defined no-signal level must be guaranteed on the CAN bus.
To this both line ends have to be terminated with terminating resistors.
In the laser measuring device is not provided an add-on connection of the terminating
resistor. Therefore, if the laser measuring device is the last slave in the CAN bus line,
the termination must be made manually with a terminating resistor of 121 ohms
between the CAN_H and CAN_L lines.
3.1.2.2 Identifier (Node-ID)
The identifier (laser address) 1 – 64 is
adjusted via the DIL-switches 1-6:
DIL-1 = ID 2
0
, DIL-6 = ID 2
5
The Node-ID is the adjusted hardware
number by the DIL-switches 1-6 + 1.
That means:
all 6 switches off = 0, Node-ID = 1
(see also "Object 100Bh: Node-ID", S24)
Note:
The adjusted address may be assigned
only once in the CANopen bus.
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20
DIP-Switch
ON
OFF
2
0
2
7
1
3.1.2.3 Baud rate
The baud rate is adjusted via the DIL-
switches 7-8:
DIP-7 DIP-8 Baud rate
OFF OFF 20 kbps
ON OFF 125 kbps
OFF ON 500 kbps
ON ON 1000 kbps
1 2 3 4 5 6 7 8 9 10 11 12 13 14 1516 1718 1920
DIP-Switch
ON
OFF
2
0
2
7
1
3.1.2.4 Length of the bus line
The max. bus line lenght is dependent on the adjusted baud rate:
Baud rate Line length [m]
20 kbps up to 2500
125 kbps up to 500
500 kbps up to 100
1000 kbps up to 25