Emerson FIELDVUE DVC6200f Instruction Manual page 136

DVC6200f Digital Valve Controller
Label
PARAMETER_NAME
Deviation High Alarm
DV_HI_ALM
UNACKNOWLEDGED
ALARM_STATE
TIME_STAMP
SUBCODE
VALUE
Deviation Low Alarm
4
DV_LO_ALM
UNACKNOWLEDGED
ALARM_STATE
TIME_STAMP
SUBCODE
VALUE
Bias
BIAS
Error
ERROR
SP Work
SP_WRK
SP FTime
SP_FTIME
Math Form
MATHFORM
Structureconfig
STRUCTURECONFIG
UGamma
GAMMA (ugamma)
124
Table 4-32. PID Function Block System Parameters Definitions
Index RO / Block
Number RW Mode
64
0=Undefined
64.1 RW N/A 1=Acknowledged
2=
Unacknowledged
0=Undefined
1=Clear reported
2=Clear not reported
64.2 RO N/A
3=Active reported
4=Active not reported
64.3 RO N/A
64.4 RO N/A
64.5 RO N/A
65
0=Undefined
65.1 RW N/A 1=Acknowledged
2=
Unacknowledged
0=Undefined
1=Clear reported
65.2 RO N/A 2=Clear not reported
3=Active reported
4=Active not reported
65.3 RO N/A
65.4 RO N/A
65.5 RO N/A
Extended Parameters
66 ALL OUT_SCALE +/− 10%
67 RO N/A
68 RO N/A
69 ALL Positive
0=Standard
70 OOS
1=Series
0=PID terms on error
1=PI terms on error, D term
on PV
2=I terms on error, PD term
on PV
3=PD terms on error
71 OOS
4= P term on error, D term
on PV
5=ID terms on error
6=I term on error, D term
on PV
7=2 Deg. of Freedom PID
72 OOS > = 0, < = 1
Range Initial Value
0=undefined
Data Type: DS-71
The DV HI alarm data, which includes a value of
the alarm, a timestamp of occurrence, and the
state of the alarm.
0=undefined
VALUE Data Type: Float
0
0
0
0=undefined
Data Type: DS-71
The DV LO alarm data, which includes a value of
the alarm, a timestamp of occurrence, and the
state of the alarm.
0=undefined
VALUE Data Type: Float
0
0
0
Data Type: Float
0 The bias value used to calculate output for a PD
structure.
Data Type: Float
The error (SP−PV) used to determine the control
Dynamic
action.
Data Type: Float
Dynamic The working set point of the block after limiting
and filtering is applied. EU of PV_SCALE
Data Type: Float
The time constant of the first-order SP filter. It is
0 the time, in seconds, required for a 63 percent
change in the IN value. Applied after SP rate
limiting.
Data Type: Unsigned8
0=Standard
Selects equation form (series or standard)
Data Type: Unsigned8
0=PID terms
Defines PID equation structure to apply controller
on error
action.
Data Type: Float
Fraction of derivative action taken on error
versus PV. For a value of 0.6, then 60% of the
derivative action will be based on error and 40%
1.0 on PV. The value of GAMMA may be changed
over a range of 0−1 if STRUCTURE is set to Two
Degrees of Freedom Control. Otherwise, it is
automatically set to a value of 1 or 0 based on
the Structure selection.
−Continued−
Description
November 2010