IM 01E20F02-01E
A-1
APPENDIX 1. APPLICATION, SETTING AND CHANGE OF BASIC PARAMETERS
APPENDIX 1. APPLICATION, SETTING AND
CHANGE OF BASIC PARAMETERS
A1.1 Applications and Selection of Basic Parameters
Summary
Tag No.(PD_TAG)
Calibration range setup
(XD_SCALE of AI block)
Output scale setup
(OUT_SCALE of AI block)
Simulation setup
(SIMULATE of AI/DI block)
LCD display setup
(DISPLAY_SELECT1-3,
DISPLAY_CYCLE of Transducer block)
Zero-point adjustment
(AUTO_ZERO_EXE,MAGFLO_ZERO
of Transducer block)
TA0101.EPS
Setting Item (applicable parameters)
Sets the range of input from the transducer block corresponding to the 0% and 100%
points in operation within the AI function block.
Sets the range unit, input value of the 0% point (in case of ADMAG AXFA14, 0), input
value of the 100% point (correspond to flow rate span).
Performs simulation of the each function block.
The input value and status for the calibration range can also be set.
It is recommended that this parameter be used for loop checks and other purposes. Refer
to “Simulation Function” in Section 6.3.
This setup is used for zeroing flow rate readings in a low flow rate area. The value of
PRIMARY_VALUE_LOWCUT (the cutoff level) is set in percent of
PRIMARY_VALUE_RANGE. In comparison, the setting of parameter LOW_CUT in an AI
function block works as a low cutoff level setting for the AI block’s OUT. As the low cutoff
feature of the flowmeter itself, it is advisable to use PRIMARY_VALUE_LOWCUT.
Sets PD_Tag.
Up to 32 alphanumeric characters can be set.
Sets the unit to be displayed on the LCD and the display speed.
Adjust display speed if a low temperature environment causes a poor LCD display quality.
Sets the time constant of damping function to VOLUME_FLOW in seconds. The setting of
PRIMARY_VALUE_FTIME affects not only the flow rate but also the totalization. In
comparison, the setting of parameter PV_FTIME in an AI function block works as the
damping time constant for the AI block’s OUT. As the damping feature of the flowmeter
itself, it is advisable to use PRIMARY_VALUE_FTIME.
Performs zero-point adjustment.
Zero-point adjustment should be done only when the measurement fluid is filled in the
flowtube and the fluid velocity is completely zero.
Always set the same as XD_SCALE.
Damping time constant setup
(PRIMARY_VALUE_FTIME
of Transduecr block)
Output signal low cut mode setup
(PRIMARY_VALUE_LOWCUT
of Transducer block)
