Fisher FIELDVUE DVC6200f User Manual

Instruction Manual
D103412X012
Detailed Setup—AO Function Block
July 2013
113
Analog Output Function Block
Overview
The Analog Output (AO) function block (figure 4‐6) assigns an output value to a field device through a specified I/O
channel. The block supports mode control, signal status calculation, and simulation. Figure 4‐7 illustrates the internal
components of the AO function block, and table 4‐25 lists the definitions of the block parameters. The digital valve
controller measures and uses actual valve position for READBACK [16].
Figure 4‐6. Analog Output (AO) Function Block
B2716‐1
BKCALOUT
OUT
CAS
IN
CAS
IN = The remote setpoint value from another
function block.
BKCAL
OUT = The value and status required by the
BKCAL
IN input of another block to prevent reset
windup and to provide bumpless transfer to closed
loop control.
OUT
= The block output and status.
READBACK
= Actual valve position.
AO
READBACK
Note
The AO block actual mode will not move to Auto unless:

Resource Block actual mode is Auto, and

AO SHED_OPT [27] is set to a non‐zero value.
Note
Actual Block Mode (MODE_BLK.ACTUAL [5.2]) will remain out of service and the block cannot be scheduled if the block has not
been licensed. Contact your Emerson Process Management sales office to upgrade product licensing.
Note
Actual Block Mode (MODE_BLK.ACTUAL [5.2]) will remain in IMAN and the block Readback status will be Bad - Not Connected if
the Output Block Selection is set incorrectly. From the transducer block method Outblock Selection, select the desired output
block, see page 69.

Fisher FIELDVUE DVC6200f Specifications

General

Brand	Fisher
Model	FIELDVUE DVC6200f
Category	Controller
Language	English