FB/FC

Functions

PID_CP

PID controller with continuous manipulated variable (continuous controller) or pulse output (pulse controller); in addition to the functions in the setpoint and actual-value branch, it implements a complete PID controller with a continuous manipulated variable, which is also made available as a pulse-width-modulated signal; manipulated variable can also be influenced manually, sub-functions can be connected or disconnected

PID_ES

PID controller with binary manipulated variable (step controller); in addition to the functions in the setpoint and actual-value branch, it implements a complete PID controller with a binary manipulated variable for integrating actuators. The step controller can be implemented with or without position feedback; manipulated variable can also be influenced manually, sub-functions can be connected or disconnected

LP_SCHED

Loop scheduler; controls the calling of individual control loops within the cyclic interrupt level

A_DEAD_B

Adaptive dead band

Filters higher-frequency interfering signals out of the error signal

CRP_IN

Convert analog input value

Input values in I/O format are converted to floating-point values for Modular PID Control

CPR_OUT

Convert analog output value

A floating-point value from Modular PID Control is converted into an output value in I/O format

DEAD_T

Dead time

Delays an input value by a configurable dead time

DEADBAND

Dead band

Differentiates the input variable as a function of the time and smoothes the signal with a first-order delay element

DIF

Derivative-action element

Calculates the error signal and monitors it for limits that can be entered

ERR_MON

Error signal monitoring

Calculates the error signal and monitors it for limits that can be entered

INTEG

Integrator

Integrates an input variable as a function of the time and limits the output to the definable limits

LAG1ST

First-order delay element

Implements a first-order delay element

LAG2ND

Second-order delay element

Implements a second-order delay element

LIMALARM

Limit monitor

Checks an input value for 4 configurable limits

LIMITER

Limitation

Sets configurable limits for an input variable

LMNGEN_C

Output of continuous-action PID controller

Contains the manipulated variable processing unit for a continuous-action PID controller. It always has to be used in combination with the PID algorithm block.

LMNGEN_S

Output of PID step controller

Contains the manipulated variable processing unit for a step controller for integrating actuators. It is always interconnected with the PID algorithm block.

LP_SCHED

Controller call distribution function

Controls the calling of individual control loops within a cyclic interrupt level

NONLIN

Non-linear static characteristic

Forms a non-linear characteristic (polyline)

NORM

Physical normalization

Scales an input variable. The normalization line is defined by 2 points.

OVERRIDE

Override control

Required for implementing an override control

PARA_CTL

Parameter control

Transfers several controller parameter sets to a PID controller

PID

PID algorithm

Provides a PID algorithm and must always be used in conjunction with LMNGEN_C or LMNGEN_S

PULSEGEN

Pulse shaper

Generates the pulse output for PID controllers with pulse output for proportional actuators

RMP_SOAK

Ramp soak

Performs configured/programmed ramp soak curves

ROC_LIM

Ramp or ramp-function generator

Limits the rate of change of an input variable. Step jump functions become ramp functions.

SCALE

Linear scaling

Scales an input variable. The normalization line is defined by factor and offset.

SP_GEN

Setpoint generator

Changes the output value continuously by means of pushbuttons

SPLT_RAN

Split ranging

Required for implementing a split-range control

SWITCH

Analog value switch

Switches one of 2 input values to one of 2 output values

Application example

Functions

EXAMPLE 01

Standard PID CTRL: Step controller

EXAMPLE 02

Standard PID CTRL: Continuous-action controller

EXAMPLE03

Standard PID CTRL: Cascade controller

EXAMPLE 04

Standard PID CTRL: Pulse controller

EXAMPLE 05

Standard PID CTRL: Optimize the continuous-action controller with the PID Self-Tuner

EXAMPLE 06

Standard PID CTRL: Optimize the step controller with the PID Self-Tuner

EXAMPLE 07

Standard PID CTRL: Optimize the pulse controller with the PID Self-Tuner

EXAMPLE 08

Modular PID CTRL: Step controller

EXAMPLE 09

Modular PID CTRL: Continuous-action controller

EXAMPLE 10

Modular PID CTRL: Pulse controller

EXAMPLE 11

Modular PID CTRL: Single-loop ratio controller

EXAMPLE 12

Modular PID CTRL: Mixture controller

EXAMPLE 13

Modular PID CTRL: Controller with feedforward control

EXAMPLE 14

Modular PID CTRL: Range selection controller

EXAMPLE 15

Modular PID CTRL: Alternating controller

EXAMPLE 16

Modular PID CTRL: Optimize the continuous-action controller with the PID Self-Tuner

EXAMPLE 17

Modular PID CTRL: Optimize the step controller with the PID Self-Tuner

EXAMPLE 18

Modular PID CTRL: Optimize the pulse controller with the PID Self-Tuner