Fisher FIELDVUE DVC6200f Instruction Manual page 124

Detailed Setup—AO Function Block
July 2013
Table 4‐25. Analog Output Function Block Parameter Definitions (Continued)
Label
PARAMETER_NAME
Grant Deny
GRANT_DENY
GRANT
DENY
I/O Options
IO_OPTS
Status Options
STATUS_OPTS
Readback
READBACK
Cascade Input
CAS_IN
Setpoint Rate Down
SP_RATE_DN
Setpoint Rate Up
SP_RATE_UP
Setpoint High Limit
SP_HI_LIM
Setpoint Low Limit
SP_LO_LIM
AO Channel
CHANNEL
Fault State Time
FSTATE_TIME
122
Index RO / Block
Number RW Mode
13
0: Program
13.1 RW ALL
1: Tune
2: Alarm
13.2 RW ALL
3: Local
1: SP tracks PV in Man
3: SP tracks PV in LO or
Iman
4: SP Track retained
target in Man or LO
5: Increase to Close
6: Fault State to value
14 OOS
7: Use Fault State
value on restart
8: Target to Man if
Fault State activated
9: Use PV for
BKCAL_OUT
4: Propagate Failure
15 OOS
Backward
Status
16 RO N/A
Value
Status
17 ALL
Value
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
Initial
Range
Value
All bits: 0
All bits: 0
0=freeze
1=go to Fault State
All bits: 0
value
0=SP
1=PV
All bits: 0
Dynamic
BAD:
NC:
const
0
+INF
+INF
100
0
1=Setpoint
0
-Continued-
Instruction Manual
D103412X012
Description
Data Type: DS‐70
Options for controlling access of host computers
and local control panels to operating, tuning, and
alarm parameters of the block.
GRANT: 1 = granted, 0= N/A
DENY: 1 = denied, 0 = N/A
Data Type: Bit String (2 byte)
0=disable
1=enable
Allows you to select the type of tracking and the
output value when a fault condition occurs.
Data Type: Bit String
0=disable
1=enable
Options the user may select for the block
processing of status.
Data Type: DS‐65
Readback is the de‐characterized valve position as
reported by the transducer block parameter
FINAL_POSITION_VALUE [17]. This correlates with
the AO block parameter OUT [9], which is the
setpoint to the transducer. READBACK is the
simulated input if SIMULATE is enabled or the
transducer block feedback if SIMULATE is disabled.
Data Type: DS‐65
The setpoint value from another function block.
Data Type: Float
Ramp rate for downward set point changes. 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 the
ramp rate is set to zero, the setpoint is used
immediately.
Data Type: Float
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
must be less than SP_HI_LIM.
Data Type: Unsigned16
Defines which transducer parameter receives the
AO output. Select Setpoint to control valve
position.
Data Type: Float
Time from failure detection to reaction if failure still
exists.