ABB 2600T Series Instruction Manual page 82

82 2 6 0 0 T S E R I E S | P R E S S U R E T R A N S M I T T E R S | O I/ 2 6 6/ F F - E N R E V. E
. . .Equations
Depending by the L_TYPE selection the following signal conversions are applied:
L_TYPE Formula
Direct PV = CHANNEL_VALUE
This conversion is applied when the XD_SCALE values are different from the OUT_SCALE values
Indirect
PV = FIELD_VAL% * (OUT_SCALE_100% - OUT_SCALE_0%) + OUT_SCALE_0%
IF FIELD_VAL < 0.0
PV = OUT_SCALE 0%
ELSE IF FIELD_VAL < LOW_CUT
PV = OUT_SCALE 0%
Indirect Square Root
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