A first setpoint temperature and a second setpoint temperature are selected.

A desired set-point (TCBC_DES) and the actual set-point (EBP_KPG) of operation of the valve are used to develop a set-point error (TCBC_ERR) for closed-loop control of the actual set-point (EBP_KPG).

The desired pull-down rate is decreased proportionately as the temperature of the fluid being pulled down approaches a desired operating setpoint to avoid or minimize any overshoot of the operating setpoint.

Alternatively, a traffic channel OLPC setpoint may be determined for each channel, and a weighted traffic OLPC setpoint calculated from the individual traffic channel OLPC setpoint.

Also, the overshoot is reduced.

At least one setpoint for controlling a rate of therapy is generated (610), the setpoint being based upon the sensor data.

The setpoint can be altered by user rotation of the ring.

Further a set-point of a desired colour and/or brightness is converted into a set-point of colour sensor coordinates with the conversion procedure.

Next, the tool center point is set at a setting point (36) and the setting point is positioned at the reference point by manual operation of the robot, teaching the state of this positioning.

The microprocessor programmed to generate an armature current setpoint signal, a field current setpoint signal, and an armature voltage reference signal.

After the laser bias setpoint is reached, the electrical modulation amplitude is increased from a minimum to a setpoint according to a predefined function.

In one aspect, one of the collection of set-points is the initial features and another of the collection of set-points is the termination features.

The user sets a setpoint pressure (e.g. 1000 psi) and the controller (26) then compares the pressures of the two components and controls the higher of the two relative to the setpoint.

A tunable dispersion compensator (TDC) is tuned from a first dispersion setpoint to a second dispersion setpoint while maintaining continuity of the dispersion.

A microprocessor (42) is used to adjust the set point pressure in the chamber (36).