SMAR CD600 Plus - Function 31 - Linearization Curve (Pnt); Operation

CD600 Plus - User's Manual
4.72
Function 31 - Linearization Curve (PNT)
Operation
The function of these blocks is to store pairs X, Y for the curves used in the following blocks:
Function 01 - Analog Input
Function 14 - Linearization Curve
Function 21 - Setpoint Generator
Function 09 - Advanced PID Controller (Adaptative Gain)
As the same curve may be used by different blocks of different loops, it must be allocated in the
General Loop (Loop G).
Each block contains 13 points, defined through pairs X, Y. The curve is determined by these points
interconnected by straight segments.
If a curve requires more than 13 points, the blocks can be grouped as shown in Table 4.31.1.
For example, a Setpoint Generator requires a curve with 70 points. The Setpoint Generator block
has an option that groups 6 blocks. That will give 6 x 13=78 points.
When more than one block is used to represent a curve, the first portion of the curve is defined by
the first block, the following section by the second and so on.
CURVE DEFINED BY PAIRS X, Y IN BLOCK# No. OF POINTS
1 109
2 110
3 111
4 112
5 113
13
6 114
7 115
8 116
9 109 + 110
10 111 + 112
11 113 + 114
26
12 115 + 116
13 109 to 112
52
14 113 to 116
15 109 to 114 78
16 109 to 116 104
Table 4.31.1 - Linearization Curves