Rockwell Automation 1336T Function Block Prog. Manual, Series A/B - Manual (Page 85)

Function Block Library 4–23
1336 FORCE — 5.9 August 1995
FUNCTION
BLOCK TYPE 9 decimal 9 hexadecimal
Function
ID = Exec =
NODE 0 Input
@Min Lim NODE 8
@Max Lim NODE 9
Output NODE 10
NODE 1 Smp Val1
NODE 5 Smp Val5
NODE 6 Min Val
NODE 7 Max Val
NODE 4 Smp Val4
NODE 3 Smp Val3
NODE 2 Smp Val2
DEFINITION
A function generator that uses:
❒ Sample values Smp Val1 — Smp Val5 to define the y-axis
components.
❒
(2) signed integers Min Val & Max Val to describe the x-axis
components spaced in (Max Val — Min Val)/4 increments.
❒
Interpolation between the y-components to calculate the output
Output.
INPUTS
Input — A signed integer specifying an x-axis coordinate.
Smp Val1 — Smp Val5 — Signed integers representing the y-axis
components.
Min Val — A signed integer associated with Smp Val1 that defines
the smallest x-axis component.
Max Val — A signed integer associated with Smp Val5 that defines
the largest x-axis component.
OUTPUTS
@Min Lim — A logic value = true when Input < Min Val.
@Max Lim — A logic value = true when Input > Max Val.
Output — A signed integer representing the y-axis value, that
corresponds to the x-axis value specified by Input.
FUNCTION
1. If Input > Max Val, @Max Lim = true, @Min Lim = false, and
Output = Smp Val5.
2. If Input< Min Val, @Max Lim = false, @Min Lim = true, and
Output = Smp Val1.