Micromod MOD: 1800P - MOD 30ML Identity Module (Version 2) PID and Ramp/Soak Functions - Manual (Page 26)

Continuous Control Functions
PID CONTROL BLOCK
2-20
31 Remote Setpoint Balance Type (SPBTYPE) ...................................................................C – R
Transfers to remote setpoint can be made bumpless by specifying auto ratio or auto bias.
Transfers to local are always bumpless as the local setpoint signal is maintained at the active
setpoint when not in local. AUTO RATIO or AUTO BIAS cannot be used if the corresponding
remote input is configured.
STANDARD 0 Neither ratio nor bias are manipulated to provide bumpless transfer to
remote.
AUTO BIAS 1 Bias value of remote setpoint is automatically manipulated to balance
transitions to remote. Remote setpoint bias input must be NONE.
AUTO RATIO 2 Ratio value of remote setpoint is automatically manipulated to
balance transitions to remote. Remote setpoint ratio input must be
NONE.
32 Remote Setpoint Ratio, Initial Value (RSPR) .................................................................. CWR
The remote setpoint ratio floating point value is the active ratio value. If a remote ratio input is
configured, this attribute becomes a copy of the remote ratio input. If AUTO RATIO balancing
is specified, this value is calculated on the switch from LOCAL to REMOTE. The calculation
is: (Active Setpoint – Bias) / Remote Setpoint.
33 Remote Setpoint Ratio Quality (RSPRQ) ........................................................................– WR
The remote setpoint ratio quality reflects the input quality of the remote ratio input and the
auto ratio calculation.
GOOD 0 Quality when the remote ratio input or auto ratio calculation is good.
BAD 1 Quality when the remote ratio input or auto ratio calculation is bad.
34 Remote Setpoint Bias, Initial Value (RSPB).................................................................... CWR
The remote setpoint bias floating point value is the active bias value. If a remote bias input is
configured, this attribute becomes a copy of the remote bias input. If AUTO BIAS balancing is
specified, this value is calculated on the switch from LOCAL to REMOTE. The calculation is:
Active Setpoint – (Remote Setpoint * Ratio).
35 Bias Quality (RSPBQ) .......................................................................................................– WR
The remote setpoint bias quality reflects the input quality of the remote bias input
and the auto bias calculation.
GOOD 0 Quality when the remote bias input or auto bias calculation is good.
BAD 1 Quality when the remote bias input or auto bias calculation is bad.
36 Process Variable Range Top (PVRH) .............................................................................. CWR
The process variable range high floating point value represents the top of the input range and
must be greater than the range low value. The process variable range values are used to
normalize the process variable input units. For example, if the VCIM input is 1 to 5 volts and
the VCI block output range is 0 to 2000 gallons, then the process range high would be 2000
and the low would be 0. This range is normalized (0 to 100%) for the PID algorithm.
37 Process Variable Range Bottom (PVRL)......................................................................... CWR
The process variable range low floating point value represents the bottom of the input range
and must be less than the range high value. See process variable range high.