Yokogawa EJA115 - Manual (Page 24)

IM 01C22T03-00E 5-2
5. 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.
Simulation:
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.
Output Scale:
Set the range of output (from 0% to 100%). The unit
can also be set.
Filter Time Constant:
Sets the damping time constant of a single exponential
filter for the PV, in seconds.
Fail Safe Mode:
This defines how the function block will operate if a
fault is detected. See table 7.1.
Fail Safe Default Value:
This sets the default value for the OUT parameter, if a
sensor or a sensor electric fault is detected.
Upper Limit Alarm and Upper Limit Warning:
Specifies the upper limit of alarms and warnings.
Lower Limit Alarm and Lower Limit Warning:
Specifies the lower limit of alarms and warnings.
5.1.3 Transducer Block Parameters
Pressure Value
Measuring Range
(Scale In)
Upper Value
Lower Value
Characterization Type
(Linear or
)
Low Flow Cut Off
Pressure Raw Value
Sensor Upper Limit
Sensor Lower Limit
Upper Calibration Point
Lower Calibration Point
Pressure Raw Value Unit
Temperature Unit
Pressure Unit
Transducer Block Target Mode
Sensor
Temperature
Analog
Input 2
Analog
Input 1
Measured
Value
Static Pressure Unit
Static Pressure
F0503.EPS
Figure 5.3 Overview of Transducer Block
The transducer block sets functions specific to the
measurements EJA. For a list of the EJA block
parameters, see “APPENDIX 1. LIST OF PARAM-
ETERS FOR EACH BLOCK OF THE EJA”. The
following describes the basic parameters of the trans-
ducer 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.