Control Mode; Restart Control Mode; Burst Mode - Fisher FIELDVUE DVC6200 Instruction Manual

Table 4-1. Default Detailed Setup Parameters (continued)
Setup Parameter
Instrument Time Invalid Enable
Calibration in Progress Enable
Autocalibration in Progress
Enable
Diagnostics in Progress Enable
Informational
Diagnostics Data Available
Status
Enable
Integrator Saturated Hi Enable
Integrator Saturated Lo Enable
Pressure Control Active Enable
Multi-Drop Alert Enable
Valve Alerts Enable
Failure Alerts Enable
Misc Alerts Enable
Alert Record
Alert Record Not Empty Enable
Alert Record Full Enable
1. The settings listed are for standard factory configuration. DVC6200 instruments
can also be ordered with custom configuration settings. For the default custom
settings, refer to the order requisition.
2. If the instrument is shipped mounted on an actuator, these values depend upon
the actuator on which the instrument is mounted.
3. U.S. Factory defaults only.
D Control Mode
You can change the control mode by selecting Control
Mode from the Mode and Protection menu, or press
the Hot Key and select Control Mode.
Control Mode lets you define where the instrument
reads its set point. Follow the prompts on the Field
Communicator display to choose one of the following
control modes: Analog or Digital.
Choose Analog if the instrument is to receive its set
point over the 4-20 mA loop. Normally the instrument
control mode is Analog.
Choose Digital if the instrument is to receive its set
point digitally, via the HART communications link.
A third mode, Test, is also displayed. Normally the
instrument should not be in the Test mode. The Field
Communicator automatically switches to this mode
whenever it needs to stroke the valve during
calibration or stroke valve, for example. However, if
you abort from a procedure where the instrument is in
the Test mode, it may remain in this mode. To take
the instrument out of the Test mode, select Control
Mode then select either Analog or Digital.
D Restart Ctrl Mode
Restart Control Mode lets you choose which operating
mode you want the instrument to be in after a restart.
Access Restart Control mode by selecting Restart Ctrl
Mode from the Mode and Protection menu. Follow the
prompts on the Field Communicator display to define
the restart control mode as Resume Last, Analog, or
Digital.
September 2010
D Burst Mode
Default
(1)
Setting
Yes Enabling burst mode provides continuous
No communication from the digital valve controller. Burst
mode applies only to the transmission of burst mode
No
data (analog input, travel target, pressure, and travel)
No
and does not affect the way other data is accessed.
Yes
Access to information in the instrument is normally
Yes
Yes obtained through the poll/response of HART
Yes
communication. The Field Communicator or the
No
control system may request any of the information that
Yes
is normally available, even while the instrument is in
Yes
burst mode. Between each burst mode transmission
No
sent by the instrument, a short pause allows the Field
Yes
Communicator or control system to initiate a request.
Yes
The instrument receives the request, processes the
response message, and then continues "bursting" the
burst mode data.
To enable burst mode, select Burst Mode, and Burst
Enable from the Mode and Protection menu.
D Burst Enable—Yes or no. Burst mode must
be enabled before you can change the burst mode
command.
D Burst Command—There are four burst mode
commands. Command 3 is recommended for use
with the 333 HART Tri-Loop HART-to-analog signal
converter. The other three are not used at this
time.
D Cmd 3(Trending)Press—Command 3
provides the following variables:
Primary variable—analog input in % or ma,
Secondary variable—travel target in % of ranged
travel,
Tertiary variable—supply or output pressure in psig,
bar, kPa, or kg/cm
the Burst menu to select if the output A, output B,
differential (A−B), or supply pressure is sent.
Quaternary variable—travel in % of ranged travel.
Detailed Setup
2
. Select Select Cmd 3 Press from
4
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