2019-03-12Fast troubleshooting for 485 products that cannot communicate in parallel

1. First check the power supply voltage with a multimeter to ensure that the power supply is normal;

2. First test the products one by one, set different device addresses to ensure that the products are normal;

3, 485 requires 2 termination resistors, connected at both ends of the transmission bus, the resistance requirement is equal to the characteristic impedance of the transmission cable. In the short-distance transmission, there is no need to terminate the resistance, that is, the terminal resistance is generally not required below 300 meters;

4, can also solve the problem of insufficient driving ability through 485 hub

Need more detailed answers?

Related issues +More
Related products
  • 8:00am-7:00 pm Service Online

    WhatsApp/Tel:+86 15050 672 146

    +86 17606 118 008


    Customer Service:support@bwsensing.com