Modular PID Control . Функции. Подробное описание, цены на оборудование Siemens. Большой выбор, низкие цены на Modular PID Control

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Modular PID Control

Startup software

Startup screens:
The startup software is used for starting up Modular PID Control.
Test functions via loop display and trend curves:
the loop display can be used for operating and monitoring the controller for test purposes. The graphic plotter records up to four signal curves. This is particularly useful for verification of the quality of the process and supports fault diagnosis.
Wizard for control loop optimization:
The wizard guides the user step by step through the controller optimization procedure, thus enabling rapid startup without requiring control-specific expertise.
Variable transient response for continuous PID controllers:
The transient response of the control loop can be selected such that the control loop responds with an overshoot of approximately 10 % for an enhanced dynamic response. If this is not desired, the controller can be optimized so that no overshoot occurs.
Context-sensitive, user-friendly Help:
Appropriate assistance is immediately available at every point in the program if required.

Standard Function Blocks

FB/FC	Remarks	Function
A_DEAD_B	Adaptive deadband	Filters HF interference signals from the error signal
CRP_IN	Analog input value conversion	An input value in I/O format is converted into a floating-point value for Modular PID Control
CRP_OUT	Analog output value conversion	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 an adjustable dead time
DEADBAND	Deadband	Differentiates an input variable as a function of time and smoothes the signal with a first-orderdelay
DIF	Differentiator	Computes the error signal and monitors it for settable limits
ERR_MON	System deviation monitoring	Computes the error signal and monitors it for settable limits
INTEG	Integrator	Integrates an input variable as a function of time and limits the output to settable 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 against 4 settable limits
LIMITER	Limiter	Limits an input value to settable limits
LMNGEN_C	Output for continuous PID controller	Contains the control output processing component for a continuous PID controller. It must always be used in combination with the PID algorithm function block.
LMNGEN_S	Output for incremental PID controller	Contains the control output processing component for a step controller for integrating actuators. It is always combined with the PID algorithm block.
LP_SCHED	Controller call distributor	Controls the invocation of individual control loops within an alarm level
NONLIN	Nonlinear static characteristic	Creates a nonlinear characteristic curve
NORM	Physical scaling	Scales an input variable. The scaling line is defined by two points.
OVERRIDE	Override control	Required to implement an override controller
PARA_CTL	Parameter control	Transfers several controller parameter sets to a PID controller
PID	PID algorithm	Contains one PID algorithm and must always be used in conjunction with LMNGEN_C or LMNGEN_S
PULSEGEN	Pulse generator	Generates the pulse output for a PID controller with pulse output for proportional actuators
RMP_SOAK	Time scheduler	Executes configured/programmed traversing curves
ROC_LIM	Ramp or startup generator	Limits the rate of change of an input variable. Step functions become ramp functions.
SCALE	Linear scaling	Scales an input variable. The scaling line is defined by factor and offset.
SP_GEN	Setpoint generator	Continuously varies the output value via pushbutton
SPLT_RAN	Range distribution	Required to implement a range-selection (split-range) closed-loop control
SWITCH	Analog value switch	Applies one of two input values to one of two output values

Application examples

Application example	Function
EXAMPL01	Fixed-value controller with switching output for integrating actuators
EXAMPL02	Fixed-value controller with continuous output
EXAMPL03	Fixed-value controller with switching output for proportional actuators
EXAMPL04	Single-loop ratio controller
EXAMPL05	Multiloop ratio controller
EXAMPL06	Compound controllers
EXAMPL07	Cascade controller
EXAMPL08	Controller with feedforward control
EXAMPL09	Controller with feedforward control
EXAMPL10	Range selection controller
EXAMPL11	Override controller
EXAMPL12	Multivariable controller