UMAX030211 Version 1.0.2. Preliminary Documentation – May be subject to change
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Figure 13 – Lookup Table Defaults with Ramp and Step Responses
Lastly, any point except (1,1) can be selected for an
‘Ignore’
response. If
LTz Point Response sub-
index N
is set to ignore, then all points from (X
N
, Y
N
) to (X
11
, Y
11
) will also be ignored. For all data
greater than X
N-1
, the output from the lookup table function block will be Y
N-1.
A combination of
‘Ramp To’
,
‘Jump To’
and
‘Ignore’
responses can be used to create an application
specific output profile. An example of where the same input is used as the X-Axis for two tables, but
where the output profiles ‘mirror’ each other for a deadband joystick response is shown in Figure 14.
The example shows a dual slope percentage output response for each side of the deadband, but
additional slopes can be easily added as needed.
(Note: In this case, since the analog outputs are
responding directly to the profile from the lookup tables, both would have object 2342h AO Control
Response set to a ‘Single Output Profile.’)
Figure 14 – Lookup Table Examples to Setup for Dual-Slope Joystick Deadband Response
