5.12.2.2. Terminating resister

5.12.2.2. Terminating resister

 

When connecting several boards, it is necessary to precisely terminate the resister. CAN data communication uses the daisy chain method. So the terminating resister needs to be connected only to the board to which the last CAN communication cable is connected. Use the DIP switch (DIP1) of CAN extension board in order to connect the terminating resister. For the settings, refer to the following table.

 

Table 5‑43 How to terminate the CAN communication of extension board (BD574)

Switch No.		1	2
Content	OFF	Extension port 1 terminating resister not connected	Extension port 2 terminating resister not connected
	ON	Extension port 1 terminating resister connected	Extension port 2 terminating resister connected
Initial Setting		OFF	OFF
Remarks		Common for BD574 and BD574E	BD574E
The External Form of the Switch