Technological tasks with SIMATIC

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Technological tasks with SIMATIC
S
IMATIC Technology
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SIMATIC Technology solves the following
technological functions
Functions
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Counting and measuring

• Event counting
• Continuous
• One-shot
• Periodice.g. for dosing
• Measurement of
• Lengths
• Frequencies
• Speeds
• Periodse.g. for speed control

Counting and measuring
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Counting and measuring with SIMATIC
Function
Product
Solution
Counting and measuring
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Counting and measuring with function modules

• Counter module FM 350-1
• One counting channel with two DI/DO each
• 24 volts, 5 volt sensor
• Maximum counting frequency 500 kHz (5 V) / 200
  kHz (24 V)
• Latch function
• Counter module FM 350-2
• Eight counting channels with one DI/DO
  each or 2 proportioning channels with
  1 / 4 DI/DO
• 24 volts (ext. power supply), NAMUR sensor
• Maximum counting frequency 10 kHz with 24V
  incremental encoders, otherwise 20 kHz

Counting and measuring
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Operating modes Overview

• BA 0 Continuous counting
• BA 1 One-shot counting
• BA 2 Periodic counting
• BA 3 Frequency measurement
• BA 4 Speed measurement
• BA 5 Period measurement
• BA 6 Proportioning
• FM 350-2 only
• Operating modes BA 0 to BA 5 (all modes except
  proportioning) can be allocated to any channel
  independently of one another (8 channels).
• In "Proportioning" mode, channels 0 to 3 and 4
  to 7 are combined into groups (2 proportioning
  channels).

Counting and measuring
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Continuous counting (BA 0)

• Once the gate has been enabled, continuous
  counting begins with the start value.
• When the counter reaches the upper counting limit
  during up counting, it jumps to the lower
  counting limit and continues counting from there
  without any pulse loss.
• When the counter reaches the lower counting limit
  during down counting, it jumps to the upper
  counting limit and continues counting from there
  without any pulse loss.
• When the comparison value is reached, a digital
  output can be set or reset and/or a process
  interrupt triggered without regard to parameter
  settings.
• Counting width 32 bits

Counting and measuring
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Single-shot counting (BA 1)

• When the gate is opened, the pulse trains are
  counted once only.
• If the main counting direction is up, the count
  proceeds from zero toward the end of the counting
  range.
• If the main counting direction is down, the count
  proceeds from the beginning of the counting range
  toward zero.
• When the comparison value is reached, a digital
  output can be set or reset and/or a process
  interrupt triggered without regard to parameter
  settings.
• Counting width 32 bits

Counting and measuring
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Periodic counting (BA 2)

• When the gate is enabled, periodic counting
  begins within the configured counting range.
• When the counter reaches the end of the counting
  range during up counting, it jumps back to zero
  and counts from there periodically without any
  pulse loss.
• When the counter reaches zero during down
  counting, it jumps back to the specified start
  value and counts periodically from there without
  loosing any pulse.
• When the comparison value is reached, a digital
  output can be set or reset and/or a process
  interrupt triggered without regard to the
  parameter settings.
• Counting width 32 bits

Counting and measuring
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Frequency measurement (BA 3)

• When the gate is enabled, all pulses occurring
  within a specifiable time window are counted.
• Each time a time window expires, the computed
  frequency is updated.
• It is possible to specify 2 frequency comparison
  values
• Lower limiting value
• Upper limiting value
• Frequency range max. 10 kHz
• Time window 10 ms to 10 s (programmable)

Counting and measuring
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Speed measurement (BA 4)

• When the gate is enabled, all pulses arriving
  within a specifiable time window are collected.
• Each time a time window expires, the computed
  speed is updated.
• It is possible to specify 2 speed comparison
  values
• Lower limiting value
• Upper limiting value
• Frequency range max. 10 kHz
• Time window 10 ms to 10 s (programmable)

Counting and measuring
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Period measurement (BA 5)

• Acquires the exact amount of time between rising
  counter edges
• A positive edge at the gate input starts the
  period measurement, a falling edge terminates it,
  and the computed value is retained until the next
  enable.
• It is possible to specify 2 period comparison
  values
• Lower limiting value
• Upper limiting value
• Measuring range 100 µs to 120 s

Counting and measuring
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Proportioning (BA 6)(FM 350-2 only)

• When the gate is opened, the proportioning
  functions are counted on a one-shot basis.
• In this mode, 4 of the module's counting
  channels are combined into one proportioning
  channel.
• When the main counting direction is up, the count
  proceeds from zero toward the end of the counting
  range.
• Four comparison values may be specified for each
  proportioning channel.
• When the comparison values are reached, the 4
  digital outputs can be set or reset and/or
  process interrupts triggered in dependence on the
  parameter settings.
• Counting width 32 bits

Counting and measuring
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Counting and measuring with application modules
FM 352-5

• FM 352-5
• High-speed Boolean processor
• Integral I/O
• Cycle time 1 µs

Counting and measuring
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Positioning

• Positioning methods
• Rapid traverse/creep feed
• Position control
• Multi-axis continuous-path controls
• Synchronized applications, e.g. for positioning
  axes and palletizers
• Control of drives
• Servo motors
• Stepper motors
• Asynchronous motors

Positioning
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Positioning with SIMATIC
Function
Product
Solution
Positioning
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Positioning with FM 351, 451 rapid
traverse/creep feed drives

• 4 outputs per axis
• Rapid traverse/creep feed
• Forwards, backwards
• Low price
• Through use of low-cost rapid traverse/creep
  feed drives

Positioning

• FM 451
• For 3 axes
• FM 351
• For 2 axes

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System overview
MPI
SIMATIC S7-300
P P
HMI
Machine
FM 351
Field PG
OP
Positioning
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M
C
P
U

• STEP 7 programming
• FM parameter initialization

• Sequential control
• Start/stop positioning
• S7 CPU interfaced to FM via technology function
  block

• Position encoderSSI absolute,incremental

• HMI
• Error diagnostics

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Positioning with FM 353, 354stepper/servo motors

• Exact positioning with stepper motors
  (pulse/direction interface)
• FM 353 (1 axis)

Positioning

• Position control with maximum precision and
  dynamic response using servo motors (/-10 V)
• FM 354 (1 axis)

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Functional Diagram --- FM353
Power section for stepper motors
MPI
CPU
FM 353
FM STEPDRIVE
PG, PC
OP
Positioning
SIMOSTEP stepper motor
Human-machine interface Fault diagnosis
Drive interface STEP Pulses, direction signal
STEP 7 programming FM parameterizing
Sequence control Starting/stopping of positioning
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Functional Diagram --- FM354
MPI
PG/PC
OP
Positioning
SIMODRIVE 611U
Human-machine interface Fault diagnosis
Encoder interface SSI/incremental
servo motor
STEP 7 programming FM parameterizing
Drive interface /- 10V
Sequence control Starting/stopping of positioning
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Intelligent motion controlFM 357-2

• Interpolation, synchronization for four axes
• Low wear through jerk limitation
• Safety and precision through "look-ahead"
• Optional drive interface
• /- 10 V analog
• Pulse/direction
• PROFIBUS DP

Programming according to DIN 66025 or in
high-level language
Positioning
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Automation concept for multi-axis operation
Positioning
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Possible configurations
Positioning

• Max. 3 FM 357-2 per CPU (max. 1 FM with Firmware
  version H)
• Central or distributed configuration
• Local bus segment with up to 2 I/O modules for
  fast reaction(on right side of FM only !)

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Ordering Data

• FM 357-2 Hardware 6ES7357-4AH01-0AE0
• FM 357-2 L Systemfirmware 6ES7357-4AH03-3AE0 on
  coded memory card configuration package
• FM 357-2 LX Systemfirmware 6ES7357-4BH03-3AE0 on
  coded memory card configuration package
• FM 357-2 H Systemfirmware 6ES7357-4CH03-3AE0 on
  coded memory card configuration package
  Configuration Package (german, english, french,
  italian)contains parameterization tool,
  electronic documentation, S7-Technology blocks,
  OP-Example masks
• Printed Manual 6ES7357-4AH00-8?G0(germanA,
  englishB, frenchC, italianE)
• Edit-FM Program editor (stand-alone) 6FC5263-0AA03
  -0AB0(suitable for FM 353/354, FM 357 and FM
  357-2)
• copy protected, including backup-function for
  series commissioning and module exchange without
  PG/PC

Positioning
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Synchronization of axes Master value coupling
and table interpolation
Positioning
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On-the-fly measurement with Hot-spot area
Positioning
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Restart after emergency stopRapid restart
Positioning
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Spline interpolation Complex path control
using points
Positioning
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Gantry function High-quality portal movement
without canting
Positioning
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Path velocity dependent analog output
Positioning
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Synchronous actionsMotion control with Interrupts
Positioning
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Handling functionsTeach in
Positioning

• Teach in of robots and handling machines using
  the PHG or HT 6

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Handling functionsCoordinate transformation
Positioning

• Coordinate transformation for SCARA- or
  Articulated-arm systems like robots and handling
  machines

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Closed-loop control

• Miscellaneous closed-loop control structures
• Fixed setpoint control
• Follow-up control
• Cascade controls
• Ratio controls
• Automatic blendingcontrols
• Analog variables
• Pressure
• Flow
• Temperature

Closed-loop control
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Closed-loop control with SIMATIC
Function
Product
Solution
Closed-loop control
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Why to use a hardware controller?FM 355 PID
Control

• SIMATIC FM355 controller offers a lot of
  benefits
• Backup facility
• Continuation of closed-loop control in the event
  of stop or CPU failure, function module
  continuous work with follow-up mode or safety
  mode
• Saves CPU-Resources like e.g. Memory
• Suitable Peripheries onboard
• A lot of possibilities for value acquisition
• All current types for control elements
• Control structures and processing functionscan
  be adapted comfortable through parameter
  assignment

Closed-loop control
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FM 355, FM 355-2 backup controllers with
self-optimization

• FM 355 C
• 4/16 closed-loop controllers, each with 1 analog
  output
• For actuators with proportional action
  (continuous output)
• FM 355 S
• 4/16 closed-loop controllers, each with 2 digital
  outputs
• Either for actuators with integral action
• Or binary trigger actuators with proportional
  action
• With/without position feedback signal (step
  controller)
• FM 355-2 specialized for temperature control
• PID controller with integral self-optimization
• Enhanced accuracy
• Cycle times and Resolution fix on 100 ms and 14
  Bit

Closed-loop control
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PID temperature control Application example
thermoform molding

• Pilot use in heat-sealing machine

Closed-loop control
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Cam controls

• Function switchdepending on
• Position
• Time
• Speed
• Integral I/O guarantees fast response
• Examples
• Presses
• Packaging machines
• Wood processing

Cam controls
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Cam controls with SIMATIC
Cam controls
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FM 352, electronic cam controllers

• 128 cams on 32 traces
• Onboard digital outputs
• 13 for FM 352
• Highly flexible
• Online modification of parameters
• Many different encoders can be connected
• Super-fast
• 20 µs response time for maximum accuracy and
  repeatability

Cam controls
Technische Folien
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FM 352-5 high-speed Boolean processor

• Cycle time 1 µs
• Integral digital I/O
• 16 DI, 8 DO
• Connection facility for position encoder
• SSI, incremental 5 V /24 V
• Programming
• In LAD or FBD with command/block library

Cam controls
Technische Folien
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System integration
Cam controls
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Comparison of Program Execution between an FPGA
and a PLC
Cam controls
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Fields of Application

• Fast response speed applications
• For example, for equipment automation with high
  clock-pulse rates (cigarette manufacturing,
  packaging industry, etc.)
• Applications with a maximum absence of jitter
• Applications that for performance reasons can no
  longer be accomplished using a standard PLC

Cam controls
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Speed Measurement

• Objective
• Determine vehicle speeds of up to 300 km/hr using
  two photoelectric barriers
• Accuracy lt0.1 (lt5 µs)

Cam controls
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Solution for example Speed Measurement

• How speed measurement is accomplished
• An internal base frequency of 500 kHz is
  generated
• A detection by the first light scanner triggers a
  counter with the generated base frequency
• A detection by the second light scanner stops the
  counter
• The count can be read and be converted into speed

Cam controls
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Homepage www.siemens.com/simatic-technology
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