9/26/2022 12:42 PM | |
Joined: 5/13/2019 Last visit: 9/3/2023 Posts: 33 Rating: (4) |
I've tried reading or writing data in different ways. First, I canceled the Modbus TCP to RTU converter and I used a cb1241 rs485 board. There is no problem. I unmounted the cb1241 board from the CPU but rs485 cables are connected to it, I've tried Modbus TCP to RTU converter again. Surprisingly it worked. I checked the cb1241 rs485 input resistance and it was 140 ohm. I separated cb1241 completely and connected a 110-ohm resistance to the rs485 A-B endpoint. I've never expected of needing resistance while the total cable length is 50 cm The problem is solved. AttachmentBQ152 MODBUS SORUNU.pdf (311 Downloads) |
This contribution was helpful to2 thankful Users |
Follow us on