Micromod MOD: 1800P - MOD 30ML Identity Module (Version 2) PID and Ramp/Soak Functions - Manual (Page 24)

Continuous Control Functions
PID CONTROL BLOCK
2-18
19 Setpoint Mode Command (SPMC)................................................................................... – – R
The setpoint mode command represents value to which setpoint mode will return when
TRACK clears. If you are in Track and want to return to a control mode other than the value
indicated here, you must write to the Controller Mode (CMS) whose value will then be
reflected here.
LOCAL 0 Setpoint returns to Local when track clears.
REMOTE 1 Setpoint returns to Remote when track clears.
20 Setpoint Track Enable (SPTE) .........................................................................................C – R
If setpoint track is enabled, the setpoint mode is set to TRACK and the setpoint TRACK value
is copied to the active setpoint value. If setpoint tracking is enabled then the setpoint track
input must exist.
NO 0 Setpoint track is not enabled.
YES 1 Setpoint mode is set to TRACK when the Track Command Input is
TRUE.
21 Adjusted Remote Setpoint, Initial Value (ARSP)............................................................ CWR
The adjusted remote setpoint floating point value is calculated during setpoint processing by
subtracting the bias from the active setpoint and dividing the result by the ratio. This value
can be written any time. This value exists so the slave controller has a way to give the master
the active calculated setpoint.
22 Adjusted Remote Setpoint Quality (ARSPQ)..................................................................– WR
The adjusted remote setpoint quality is determined by the remote setpoint, bias or ratio
qualities.
GOOD 0 Quality when the remote setpoint, bias or ratio qualities are good.
BAD 1 Quality when the remote setpoint, bias or ratio qualities are bad or
when the setpoint mode is FAULT.
23 Setpoint, Initial Value (SP) ............................................................................................... CWR
This is the active setpoint floating point value used by the PID algorithm. Setpoint processing
occurs independently from the PID calculation and determines the active setpoint for use in
the PID calculation. The configured initial value is used as the active setpoint value when the
algorithm is first run. If the setpoint mode is LOCAL, the active setpoint remains at the last
value obtained when the mode was TRACK or REMOTE, or the value written from the user
interface. When the setpoint mode is REMOTE, the active setpoint is the remote setpoint
value multiplied by the ratio and added to the bias. The active setpoint attribute can only be
written if the setpoint mode is FAULT or LOCAL, or if the block state is OFF or DEBUG.
24 Active Setpoint Quality (SPQ)..........................................................................................– WR
The active setpoint quality is determined by the setpoint mode and the quality of the input
attributes affecting the setpoint.
GOOD 0 If the setpoint mode is LOCAL, the active setpoint quality is GOOD.
BAD 1 If the setpoint mode is remote, and the remote setpoint, bias or ratio
qualities are bad, then the active setpoint quality is set bad. If the
setpoint mode is FAULT, all setpoint processing outputs are set bad.
If the setpoint mode is TRACK and the Setpoint Track Value input is
bad, then the active setpoint quality is set bad.