ifm electronic RN7003 - Manual (Page 7)

UK
CANopen encoder
7
supply +U 6:
B
zero set button 7:
screw terminals for bus and power supply connection 8:
Node address 4.2
The node address of the device can be set via two decimal rotary switches in
the device� The step increment x10 and x1 is specified next to the switches�
The permitted address range is between 3 and 98� The address range 0 to
2 is reserved for the master� Address 0 is used for broadcasting, i�e� master
broadcasting to multiple slaves� Note that each address used in a CANopen
network must be unique and must not be used by other devices�
The device address is read and adopted when the encoder power supply is
switched on (or the NMT command Reset_Communication or Reset_Node)� Both
actions are required to adopt changes to the address settings�
Bus termination 4.3
In a CANopen network all devices are connected in a bus structure� Up to 32
devices (masters and/or slaves) can be connected in one segment� If more
devices are needed, repeaters must be used to amplify the signals between the
segments� An active termination must be added at the beginning and end of each
bus segment to ensure an error-free operation� These terminations are integrated
into the device and can be activated via DIP switches�
The active termination is only activated if the encoder is switched on� If the device
is switched off, the CAN_H and CAN_L lines are internally terminated by a 121 Ω
resistor�
Bit 1 Bit 2 Effect
on on 121 ohm resistor between CAN_H and CAN_L
on off no valid setting
off on no valid setting
off off no resistor between CAN_H and CAN_L
Baud rate switch 4.4
The communication baud rate can be set using the rotary switch inside the
encoder� The baud rate is set according to the following table�