Advanced Features; Flow Simulation; Using Transducer Block Parameters - Emerson Rosemount 8800D Series Reference Manual

Configuration and Operation
March 2016
Uncertain if man mode
Set the output status of the Analog Input block to uncertain if the actual mode of the block
is Man.
Note
The instrument must be in Out of Service mode to set the status option.
2.8.6

Advanced features

The AI Function Block provides added capability through the addition of the following
parameters:
ALARM_TYPE
ALARM_TYPE allows one or more of the process alarm conditions detected by the AI
function block to be used in setting its OUT_D parameter.
OUT_D
OUT_D is the discrete output of the AI function block based on the detection of process
alarm condition(s). This parameter may be linked to other function blocks that require a
discrete input based on the detected alarm condition.
2.9

Flow simulation

The electronics is capable of internally generating a flow signal that may be used to simulate
a sensor signal. The simulated signal amplitude is based on the transmitter required
minimum process density. The simulated signal can be a constant frequency or the
simulated signal can be a varying frequency to represent a ramping flow rate.
Simulating the flow signal requires the simulate ENABLE jumper on the transmitter
electronics board to be in the 'ON' position. The transmitters are shipped with the jumper
in the 'OFF' position.
2.9.1

Using transducer block parameters

SIMULATION_CONTROL
Sim Disabled—Normal operation, no simulated flow signal.
Sim—Internal Generator—The internal frequency generator will produce the frequency
signal.
Sim—External Generator—An External Frequency generator can be connected to Freq In and
Ground connections on the electronics board.
SIMULATION_UNITS
PV Engineering Units—Simulated flow will be in engineering units.
PV Percent of Range—Simulated flow will be in percentage of Primary Value flow range.
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Reference Manual
00809-0100-4772, Rev FA
Configuration and Operation
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