Issue
PID Definitions and definition for AutoTune PIDs.
Product Line
Andover Continuum, EcoStruxure Building Operation
Environment
- Continuum 1.94
- StruxureWare Building Operation 1.1 and higher
Cause
Argument for bPID in Continuum and StruxureWare Building Operation are:
Arg 1 Ena
Arg 2 Type
Arg 3 Cv
Arg 4 SP
Arg 5 Kp
Arg 6 LKi
Arg 7 LKd
Arg 8 Db
Arg 9 OP
Arg 10 Bias
Arg 11 Isum
Arg 12 err
Arg 13 LtimArguments for AutoTuner PID Continuum and StruxureWare Building Operation are:
Arg 1 Ena Tuning Enable
Arg 2 Type type of control
Arg 3 Cv Measured variable
Arg 4 SP Setpoint
Arg 5 Kp Proportional gain constant
Arg 6 Ki Integral gain constant
Arg 7 Kd Derivative gain constant
Arg 8 Db Deadband
Arg 9 OP Output
Arg 10 Lag Output Device Lag time
Arg 11 Dev Deviation from setpoint allowed
Arg 12 Pd Passed Data Array of 17 Numerics
Arg 13 Ta Time Date Array of 3 VariablesResolution
For AutoTunerPID Wizard keep in mind that it is different than PID or often referred to as BPID. There are 3 types of PIDs
- bPID (normal PID)
- Simple PID (which was used for less memory available in controllers and had 9 Arguments)
- AutoTunerPID (designed to be run once on a system to ascertain the required values of Proportional, Integral and Derivative factors (Kp, Ki, Kd), when complete the function is normally to be replaced by the standard PID function as it will run faster with less system overhead. However when tuning is complete the PID tuning function will continue to control the plant using the standard PID function.)
Please note that PIDs are no longer autoconfig and there is no generic PID functionality with Continuum 1.94 and StruxureWare Building Operation 1.1 and higher, but custom solutions instead.
- bPID information on page 101 available in PID Function.pdf
- Simple PID is on page 90 of the above link
- AutoTunerPID information available in PID AutoTuner.pdf
