2600T Series Pressure transmitters |
OI/266/FF/ADD-EN Rev. B 35
Equations
The Analog Input receive in input the Transduce Block variable Value selected with the CHANNEL. The Input Value is
represented as CHANNEL Value in the following formula.
FIELD_VAL = 100 * CHANNEL_VALUE – XD_SCALE_0%
XD_SCALE_100% – XD_SCALE_0%
Depending by the L_TYPE selection the following signal conversions are applied:
L_TYPE
Formula
Direct
PV = CHANNEL_VALUE
Indirect
This conversion is applied when the XD_SCALE values are different from the OUT_SCALE values
PV = FIELD_VAL% * (OUT_SCALE_100% - OUT_SCALE_0%) + OUT_SCALE_0%
Indirect Square Root
IF FIELD_VAL < 0.0
PV = OUT_SCALE 0%
ELSE IF FIELD_VAL < LOW_CUT
PV = OUT_SCALE 0%
ELSE
PV =
√
Field_Val% * (OUT_SCALE_100% - OUT_SCALE_0%) + OUT_SCALE_0%
Configuration hints
The minimum configuration for having the AI working and/or moving out from the OOS needs at least the following settings:
– CHANNEL different by 0 (uninitialized)
– XD_SCALE = OUT_SCALE
– L_TYPE = Direct
** The minimum configuration can be set also via the RB_SPECIAL_RESTART
