PID Control Applications Firmware
The PID Control Applications Firmware provides
Proportional, Integral, and Derivative (PID) gain
control for a Remote Operations Controller (ROC) or
FloBoss%uF6DB 407 Flow Manager. The firmware enables
the stable operation of feedback control loops that
employ a regulating device, such as a control valve.
The firmware, which is standard in the ROC, is
configured using ROCLINK%uF6DB Configuration Software
(see Specification Sheet 4:RL101 or 4:RFW).
Proportional, Integral, and Derivative (PID) gain
control for a Remote Operations Controller (ROC) or
FloBoss%uF6DB 407 Flow Manager. The firmware enables
the stable operation of feedback control loops that
employ a regulating device, such as a control valve.
The firmware, which is standard in the ROC, is
configured using ROCLINK%uF6DB Configuration Software
(see Specification Sheet 4:RL101 or 4:RFW).
The firmware can accommodate as many as four independent PID algorithms (loops) in the FloBoss 407 unit, six loops in the ROC306 or ROC312 unit, and sixteen loops in the ROC364 unit. Each loop has its own user-defined input, output, and override capability.
The typical use for PID control is to maintain the process variable at a setpoint. If PID override control is configured, the primary loop is normally in control of the regulating device. When a designated process variable crosses a user-defined switchover setpoint, a secondary (override) loop takes control of the regulating device. When the switchover conditions are no longer met, the primary loop regains control of the device.
Specifications
- Common variables are configured for both loops and consist of: Point Tag ID: The 10-character name for the control loops. Control Type: Selects the “modes” in which the PID loop operates: auto/manual, primary/override, DO control/AO control, stop on reset, manual tracking.