Common Signal Interference Issues in CAN Bus

Common Signal Interference Issues in CAN Bus

Identifying the Cause of Interference When there is interference on the bus, experienced engineers can quickly locate the issue, but it can be troublesome for beginners. There are many causes of bus interference, such as electromagnetic radiation coupling into communication cables, improper grounding of shielded wires, and isolation of communication without isolating the power supply. … Read more

Communication Distances (Serial; Profibus; MPI; Ethernet)

Communication Distances (Serial; Profibus; MPI; Ethernet)

In SIEMENS industrial communication, the most commonly used methods are Serial; Profibus; MPI; and Ethernet communication. The maximum communication distances for each are described in the table below. Serial Communication Type Rate Maximum Distance RS 232C 300~115200bps 15 m 20 mA TTY 9600 bps 1000 m 19,200 bps 500 m 422/485 115.2 kbps 250 m … Read more