Figure 10.3 Logix 3400Iq Digital Positioner Characteristic Curves; Table 10.15 Transducer Block Characterization Parameters - Flowserve Logix 3400IQ User Instructions

Table 10.15 Transducer Block Characterization Parameters

Parameter Description
MODE_BLK The operating mode of the
transducer block
CONTROL_FLAGS Byte values which select
positioner operation fea-
tures
CURVEX Numeric X value array for
custom point. (1x21 array
points)
CURVEY Numeric Y value array for
custom point. (1x21 array
points)
* Must not be selected if a custom curve is to be created or edited.
10.12 Characterization Procedure
The following procedure outlines the basic way setting up a custom stroke characterization takes
place.
Logix 3400IQ Digital Positioner FCD LGENIM3402-00 – 0/07
Value — Meaning Comments
Permitted Modes: Auto The transducer block
- Auto (target mode) OOS must be out-of-service
- Out of Service before the user can edit or
change characterization.
1 Quick Opening Curve* Loads factory defined QO
curve as custom curve.
2 Equal Percent Curve Loads factory defined
equal percent curve as
custom curve.
4 Positioner Model
5 ActuatorStyle
6 Custom Characteriza- Activates custom curve. If
tion Active Off, response is Linear.
8 Air Action
X-axis value for custom Pair each X-value with
stroke characterization corresponding Y-value to
point. Range -10 to 110 define the desired point.
Values must be in ascen-
ding (or equal) order.
Y-axis value for custom
stroke characterization
point. Range -10 to 110

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