CAN devices

  Transducer CX23-R MX840B-R MX471B-R
CAN bus
database or raw message
    ●  
connector 1
    ●  §
database only

         § Including support for CCP/XCP-on-CAN (not in combination with CX23-R).

NOTE
To ensure normal operation, the CAN bus needs to be terminated at both ends using appropriate termination resistors. The CX23-R, MX471B-R and MX840B-R provide internal completion resistors between CAN H and CAN L that can be enabled or disabled individually with software.

NOTE
The optional CAN power provided by the CX23-R is 1 A limited and the same voltage as the input to the CX23-R.

NOTE
Pin 1 can be connected to the CAN cable shield, per CiA 303-1 standard. However, this will short the shield to the Signal ground of the CX23-R. In cabling, where only one end of the shield is grounded, this is acceptable. Otherwise, leave this pin unconnected to prevent ground loops. It is not recommended to connect the cable shield to chassis ground of the installation and to pin 1.