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I’m Getting Communication Time Out Errors And I Can’t Get The Device To Communicate With My Software? What Could Be Wrong?

Answer»
  • Transmit and receive signals can OFTEN be verified by watching the transmit and receive lights on the MODBUS components.
  • The communication parameters are not SET up correctly on the device. Check the settings match for slave address, baud rate, STOP bit and parity.
  • MAKE sure the host software has the same configuration
  • The transmit and receive wires are crossed. Try switching the wires as it will not cause any damage.
  • Check the conductivity on each wire for loose connections or broken wires.
  • High power lines or improper grounding is causing noise in the system. Are the communication cables shielded and is the shield grounded on one end.



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