Rockwell-automation 1336T Function Block Prog. Manual, Series A/B Uživatelský manuál stáhnout pdf (Strana 65)

Function Block Library 4–3

1336 FORCE — 5.9 August 1995

FUNCTION

BLOCK

TYPE

DESCRIPTION PAGE

ABS 1 An absolute value function block whose output is the

positive value.

4–4

BIN2DEC

3 A binary to decimal function block that takes (16) input

words and produces (1) decimal output word.

4–5

COMPHYST

4 Compare with hysteresis function block that checks for

input = preset value with a hysteresis around the value.

4–7

DEC2BIN

5 A decimal to binary function block that takes (1) decimal

input word and produces (16) binary output words.

4–9

DELAY

6 A time delay function block that echoes a logic input after a

delay.

4–11

DERIV

7 A derivative function block that calculates the change in

input per second.

4–13

DIVIDE

23 A divide function block that divides (2) signed integers.

4–15

EXOR2

25 An exclusive OR function that takes (2) inputs and

provides (2) output values — The XOR of those values

and the NOT of the output value.

4–18

FILTER

A first order low pass algorithm filter, with a programmable

bandwidth in tenths of radians per second.

4–19

4AND

An and function that takes (4) inputs and performs a

logical and.

4–21

4OR

16 An or function that takes the logical or of (4) inputs.

4–22

FUNCTION

9 A ”function” function block that with a user approximation

for a function, linearly interpolates between (2) of (5)

possible points.

4–23

INTEGRATOR

10 An integrator function block that does trapezoidal

integration.

4–26

LIMIT

12 A limiter function block that limits an input to programmed

minimum and maximum values.

4–30

LNOT

15 A logical not function.

4–31

MINMAX

13 A minimum or maximum function block that can be

programmed to take the minimum or maximum of two input

values.

4–32

MONOSTABLE

14 A one shot monostable function block that elongates a

rising edge signal for a specified time duration.

4–33

MULTIPLEXER 21

A select function block that multiplexes one of four inputs

based on the state of the selector inputs.

4–34

MULTIPLY 28

A multiply function block that multiplies (2) signed integers.

4–35

NO-OP 0

A PLC space holder.

4–37

PI CTRL 17

A proportional/integral control function block that takes the

difference between two inputs and performs a PI control

with a proportional and integral gains.

4–38

PULSE CNTR 18 A pulse counter function block that counts rising edges of

an input value.

4–42

RATE LIMITER 19 A ”ramp” function block that limits the rate of change of an

input value

4–44

SCALE 20 A scale function block that uses the following formula: IN1

× (MULTI/DIV).

4–46

SR FF 22 A set-reset flip-flop. 4–48

SUB 27 A subtract function block that subtracts (2) signed

numbers.

4–49

T-FF 11 A toggle flip flop function block, that changes the state of

the input.

4–50

2ADD 26 An add function block that adds (2) signed numbers. 4–51

UP/DWN CNTR 24 An up/down counter function block that increments or

decrements to a specified value in a specified amount of

time.

4–52

Function Block Index

1 2 ... 60 61 62 63 64 65 66 67 68 69 70 ... 179 180

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