Page 62 Foundation Fieldbus RMA803 Remote Indicator User's Guide Revision 4
Parameter Description
HI_HI_ALM The HI HI alarm data, which includes a value of the alarm, a
timestamp of occurrence, and the state of the alarm.
HI_ALM The HI alarm data, which includes a value of the alarm, a timestamp
of occurrence, and the state of the alarm.
LO_ALM The LO alarm data, which includes a value of the alarm, a
timestamp of occurrence, and the state of the alarm.
LO_LO_ALM The LO LO alarm data, which includes a value of the alarm, a
timestamp of occurrence, and the state of the alarm.
DV_HI_ALM The DV HI alarm data, which includes a value of the alarm, a
timestamp of occurrence, and the state of the alarm.
DV_LO_ALM The DV LO alarm data, which includes a value of the alarm, a
timestamp of occurrence, and the state of the alarm.
PID_FORM Configuration parameter specifies the IDEAL or ROBUST PID
equation to be used:
• IDEAL PID (default): Non-interactive form of a three mode control
equation that provides Proportional, Integral and Derivative
control action. Linear and non-linear gain parameters are
available.
• ROBUST PID: The same as Ideal PID. Additionally, the equation
supports a user-configurable lag filter applied to calculated output
value. (See OUT_LAG parameter.) Linear and non-linear gain
parameters are available.
ALGO_TYPE Configuration parameter specifies algorithm type which can be A, B,
or C:
• Type “A” equation where Proportional, Integral and Derivative act
on ERROR.
• Type “B” equation where Proportional and Integral act on ERROR
and Derivative acts on PV.
• Type “C” equation where Integral acts on ERROR and
Proportional and Derivative act on PV.
OUT_LAG Time constant of single exponential LAG filter applied to the OUT
parameter (primary output).
Units (in seconds). For Ideal PID equation the lag filter is fixed at
1/16 and is not configurable.
GAIN_NLIN Dimensionless gain factor. When the gain factor is multiplied by
absolute value of the error and added to the linear GAIN, the result
is a gain response which is proportional to the deviation. The default
value is zero resulting in no response due to non-linear gain action.
GAIN_COMP The composite gain quantity including both linear and non-linear
gain parameters. It is a read only parameter.
ERROR_ABS Absolute value of the difference between PV and working setpoint.
Read only parameter.
WSP Working setpoint. This is the setpoint value after absolute and rate
limits have been applied. Deviation alarms are computed on this
value. It is a read only parameter.
BLOCK_TEST An internal Honeywell test parameter.
To Next Page
Loading...
