Micromod MOD: 1800P - MOD 30ML Identity Module (Version 2) Algorithms, Tables and Sequential Logic Functions - Manual (Page 115)

Logic Functions - Book 2
PIECEWISE TABLE BLOCK
9-3
9.2 PIECEWISE TABLE BLOCK (PW)
The piecewise table block is a data only block. The table consists of two to 60 pairs of X, Y
floating point coordinates. Piecewise table can be constructed for supporting a linearization
block or as a source of floating point recipe data. In addition, the X and Y coordinates are
tuneable parameters.
When a Piecewise Table is used by the linearizer block for piecewise (X coordinates) or
inverse piecewise (Y coordinates) linearization, the table must be constructed with the proper
coordinates in ascending order with no duplicates. A properly constructed table will have
either the ’Can Be Piecewise’ or ’Can Be InversePiecewise’ attribute set at YES.
When a Piecewise Table is used as recipe data, the rules for linearization do not apply and
any relational floating-point data may be entered.
A functional block diagram of the block is shown in Figure 9-1. The display which is used to
configure the piecewise table block is shown in Figure 9-2 (page 1).
X1
Value
Y1
Value
Data
Constant
1
X60
Value
Y60
Value
Data
Constant
60
Piecewise
Data
Storage
Data Constants
2 thru 59
(Identical to
Data Constants
1 and 60)
Figure 9-1. Functional Block Diagram, Piecewise Table Block