Block types and functions

IL for PCS 7

IL for S7

Operator control blocks

• Aggregate switchover of 8/16 aggregates

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• Blocks for handling smaller numbers of parameters and parameter sets

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• Jump distributor for up to 5 jump destinations

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• User administration for managing operating rights from 8 levels

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• Operator control of an analog measured value

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• Operator control of a binary measured value

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Building automation blocks

• Calculation of thermal power and emitted energy

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• Calculation of enthalpy, absolute humidity and humidity at saturation according to Molier

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• Optimization of operating time depending on outdoor temperature

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• Conversion of unit of temperature from °C to °F or vice versa

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• Conversion of humidity from absolute to relative or vice versa

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• Calculation of setpoints for temperature and humidity controller of a ventilation system managed by an Hx diagram

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Communication blocks

• For connections between controllers (S7-400 Standard and redundant or S7?300)

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Logic blocks

• Selectors for String, Real, Boolean, Integer, Byte, Word, DWord, DInteger and Char values

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• Selector for Real, Boolean and Integer values

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• Monitoring of up to 8 process values to increase security or availability

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Mathematical blocks

• Measured value / accumulation with specific factor, e.g. specific heat

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• Formation of the mean/minimum/maximum value with plausibility check

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Motor and valve blocks

• Path diverter for up to 9/8 paths

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• Double seat valve

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• Valve control

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• Single-stage motor

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• Reversing motor

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• Two-stage motor

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• Frequency-controlled motor

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• 3-point final controlling element

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• Motor valve control

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Panel blocks

• For visualization of plant units on site

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Control blocks

• Polyline with up to 8 interpolation points

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• Polyline with variable number of curve points

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• Setpoint encoder with a variable number of setpoints

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• Time switch with 8 switching values

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• Signal splitter (SplitRange) for the output signal of a PID controller

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• Continuous PID controller

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• Retrieval of manipulated variable for the controller

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System blocks

• Output of CPU time in BCD format

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Monitoring blocks

• Measured value monitoring for 8 limits

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• Measured value monitoring for 4 analog and binary limits

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• Measured value monitoring

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• Measured value monitoring with gradient function

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• Monitoring of a binary process tag

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• Monitoring of 8 binary process tags

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APC connection of higher-level controller

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Energy management blocks

• Load management for coordination of maximum 8 consumers

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• Acquisition and calculation of energy consumption values

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• Acquisition and extrapolation of consumption peaks at the plant power feed

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• Pulse converters for processing the pulse output of a totalizer

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Maintenance blocks

• Simulation block for analog values

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• Simulation block for digital values

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