For RTD-10 in Standard Resistance or Voltage mode: If both “hard wired” control (S1-S6) and Modbus control are used, command priorities are as follows:
- Each input control parameter on S1 to S5 can be locked or unlocked by different input values on S6.
- If an input control parameter is Locked then the value on the associated input is continuously written to the AC unit, the Remote Controller is locked, and any Modbus values will be overwritten.
- If an input control parameter is NOT Locked, then updates from input S1 to S5 only occur on change, where a change is typically more than 0.25V or 250 ohms. The value in the corresponding Modbus register will be changed by the input, but if no change occurs on the input then the Modbus values can be written to, as can the control button on the Wired Remote Controller.