It is often very useful to have an indication at the SCADA host when the measurement inputs for a flow run are in the live or forced state. While usually in the live state, inputs can be placed in the forced state when calibrating or performing maintenance operations.
The RealFLO TeleBUS Protocol Interface automatically populates Modbus registers with the measurement inputs data.

The following is for Run 1 (other runs will be offset from this as per the TeleBUS Protocol section in the RealFLO manual)

The live input values are in the following Modbus registers:
47522 (temperature)
47524 (static pressure)
47526 (differential pressure)
The forced input values are in the following Modbus registers:
47556 (temperature)
47558 (static pressure)
48470 (differential pressure)

The calibration register, 47502, indicates whether the value is forced or live. Note that these are not specified in the RealFLO TeleBUS Protocol Manual. I got this information from Joe and will add the information to the manual.

Temperature is forced when bit 4 is set: value is 16.
SP is forced when bit 5 is set: value is 32.
DP is forced when bit 6 is set: value is 64.
Pulse rate is forced when bit 7 is set: value is 128.