Filter
Top Products
CANopen Network Interface
1606218 02 08/2006 43
Line Terminator
Resistance
To minimize the voltage drop in the connection, it is advisable to use a higher line
terminator resistance for high length cables than that specified by the standard
ISO11898-2. When configuring the system, the connector resistances must also be
taken into consideration. For each connector, 5 mΩ to 20 mΩ must be added to the
terminator resistance.
What types of
cables can be
used?
Pre-assembled cables make installing the system considerably easier. Cabling
errors are avoided and implementation is achieved more rapidly. Schneider Electric
offers a full range of products such as field bus links, power supply cables and
cables for detectors, together with accessories such as line terminators. Connectors
and cables for assembly are also available.
RISK OF UNINTENDED EQUIPMENT OPERATION
The potential difference at the CAN_GND connections of all the CANopen bus
items must not be greater than 2 VDC. The connectors have a standard DC of
5mΩ to 20 mΩ. It is important to connect a 120 Ω line terminator between CAN_H
and CAN_L at the line end (see Physical Layer, p. 49).
Failure to follow this instruction can result in death, serious injury, or
equipment damage.
WARNING