Emerson FIELDVUE DVC6200f Instruction Manual page 118

DVC6200f Digital Valve Controller
Label
PARAMETER_NAME
Setpoint Rate Down
SP_RATE_DN
Setpoint Rate Up
SP_RATE_UP
Setpoint High Limit
SP_HI_LIM
Setpoint Low Limit
SP_LO_LIM
4
AO Channel
CHANNEL
Fault State Time
FSTATE_TIME
Fault State Value
FSTATE_VAL
Back Calculation Output
BKCAL_OUT
Remote Cascade Input
RCAS_IN
Shed Options
SHED_OPT
Remote Cascade Output
RCAS_OUT
106
Table 4-25. Analog Output Function Block Parameter Definitions
Index RO / Block
Number RW Mode
Positive, 0 disables
18 ALL
rate limiting PV units
Positive, 0 disables
19 ALL
rate limiting PV units
20 ALL PV Scale +/− 10%
21 ALL PV Scale +/− 10%
22 OOS 1=Setpoint
23 ALL Positive, seconds
24 ALL PV Scale +/− 10%
Status Limits
25 RO N/A
Value
Status
26 ALL
Value
Defined by FF spec
0=Invalid
1=Normal Shed,
Normal Return
2=Normal Shed, No
Return
3=Shed to Auto,
normal return
4=Shed to Auto, no
return. Target mode
changes to Auto on
detection of a shed
condition
27 ALL
5=Shed to Manual,
normal return
6=Shed to Manual,
No return. Target
mode changes to
MAN on detection of
a shed condition.
7=Shed to retained
target, normal return
8=Shed to retained
target, no return.
(Change target to
retained target)
Status
28 RO N/A
Value
Initial
Range
Value
Data Type: Float
Ramp rate for downward set point changes.
+INF
When the ramp rate is set to zero, the set point is
used immediately.
Data Type: Float
Ramp rate for upward set point changes. When
+INF
the ramp rate is set to zero, the setpoint is used
immediately.
Data Type: Float
100 The highest set point value allowed. SP_HI_LIM
must be greater than SP_LO_LIM.
Data Type: Float
The lowest set point value allowed. SP_LO_LIM
0
must be less than SP_HI_LIM.
Data Type: Unsigned16
Defines which transducer parameter receives the
1=Setpoint
AO output. Select Setpoint to control valve
position.
Data Type: Float
0 Time from failure detection to reaction if failure
still exists.
Data Type: Float
0 Preset value to use if I/O_OPTS Fault State to
Value or Use Fault State Value on Restart is set.
Data Type: DS-65
The value and status required by the BKCAL_IN
Dynamic input of another block to prevent reset windup
and to provide bumpless transfer to closed loop
control.
BAD:
NoCom:
Data Type: DS-65
NoVal:
Target SP and status by supervisory host
const
0 Trk
Data Type: Unsigned8
0 Defines the action to be taken when the set point
is not updated in a remote mode.
Data Type: DS-65
Dynamic
Block set point and status after ramping
−Continued−
Description
November 2010