Deriv – Rockwell Automation 1336T Function Block Prog. Manual, Series A/B User Manual

Page 76

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Function Block Library

4–14

1336 FORCE — 5.9 August 1995

Example 2 — Rate = 16383 Units-per-Second (UPS)

– 16383

"

DERIV Out

"

– 32767

"

+ 16383

"

Ramp Input Rate = + 16383 UPS

"

0

"

In the example above, the rate limit input to the derivative function is set to allow a
16383 UPS change of output. A constant rate-of-change to the input, yields a constant output
level of

±

16383, with the output sign changing with the input slope.

DERIV

(continued)

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