Rockwell Automation 1336T Function Block Prog. Manual, Series A/B - Manual (Page 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 8 A first order low pass algorithm filter, with a programmable
bandwidth in tenths of radians per second. 4–19
4AND 2 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