Yokogawa AXFA14G/C - Manual (Page 16)

IM 01E20F12-01E 4-2
4. CONFIGURATION
TARGET_MODE:
Indicates the AI block mode: Out of Service (O/S),
MAN, or AUTO. Target Mode indicates what mode of
operation is desired for the AI block. In Out of Service
mode, the AI block does not operate. Manual mode
does not allow values to be updated. AUTO mode
causes the measured values to be updated. Under
normal circumstance, set this to AUTO mode. AUTO
mode is the factory default.
SIMULATE:
For commissioning and test purposes the input value
from the Transducer Block in the Analog Input
Function Block AI-FB can be modified. That means
that the Transducer and AI-FB will be disconnected.
OUT_SCALE:
Set the range of output (from 0% to 100%). The unit
can also be set.
PV_FTIME:
Sets the damping time constant of a single exponential
filter for the PV, in seconds.
FSAFE_TYPE:
This defines how the function block will operate if a
fault is detected.
FSAFE_VALUE:
This sets the default value for the OUT parameter, if a
sensor or a sensor electric fault is detected.
HI_HI_ALM, HI_ALM, LO_ALM, LO_LO_ALM:
Specifies the level setting value for each alarm of flow
rate limit depending on the necessity.
4.1.3 Transducer Block Parameters
Signal
conditioning
Raw quantities
Flow rate
F0403.EPS
TOT3
TOT2
Nominal size
TOT1
AI
Signal Processing, Nominalization
Sensor data
Transducer Block
Low flow cut
Flow direction
Volume flow
Process data
Unit and limit computation
Units
Volume low limit
Volme high limit
Limits
Figure 4.3 Overview of Transducer Block
The transducer block sets functions specific to the
measurements AXF. For a list of the AXF block
parameters, see “Chapter 9”. The following describes
the basic parameters of the transducer block.
TARGET_MODE:
Indicates the physical block mode: Out of Service(O/S)
or AUTO. In Out of Service mode, the block does not
operate. Under normal circumstances, set this to AUTO
mode.