Technical FAQs

Ask a Question

How can I protect a coil in my Quantum PLC from being written to via Modbus or Modbus Plus by either a HMI or another PLC?

In order to protect a coil from being written to via Modbus or Modbus Plus by either a HMI or another PLC, you can use the "Data Protection" under "Config Extensions" to protect a group of coils. The example below is a "Screen" capture using ProWORX NxT that shows coils 000017 to 000512 being protected:

Was this helpful?
What can we do to improve the information ?