FM 450-1 counter module

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  Информационные материалы

  • Two-channel intelligent counter module for simple counting tasks
  • For direct connection of incremental encoders
  • Comparison function with 2 specifiable comparison values
  • Integrated digital outputs for outputting the response when the comparison values are reached

  Note

  SIMODRIVE Sensor/Motion Connect 500 feature incremental encoders and preassembled connecting cables for counting and positioning functions.

  http://www.siemens.com/simatic-technology

  Область применения

  The FM 450-1 is the intelligent, single-channel counter module for simple counting tasks. It can be used in the SIMATIC S7-400.

  Applications include:

  • Assembly and handling equipment
  • Plastics machines
  • Production machines
  • Paper machines
  • Textiles machines
  • Packaging machines

  Дизайн

  The FM 450-1 supplies power for the encoders.

  The module is characterized by the following mechanical features:

  • Compact configuration:
    The rugged plastic housing contains:
    • Fault LEDs (INTF/EXTF)
    • LEDs to indicate the counter is running (CR), and the counting direction (DIR)
    • LEDs for digital input and output modules
    • Front connector as on the signal modules
    • Labeling area on the front cover.
  • Easy installation:
    The module is simply mounted in the rack and screwed tight. It can be fitted with a coding element in the front connector.
  • User-friendly wiring:
    The module is wired by means of a plug-in front connector. When the connector is plugged in for the first time a coding element in the module engages, so that the connector can only be plugged into modules of the same type. When the module is replaced, the front connector can be used in its fully wired state for the new module of the same type.

  Configuring package

  The configuring package required for configuration comprises:

  • Manual
  • Parameterization screen forms
  • Standard function blocks for data exchange with the CPU

  Функции

  The module off-loads the CPU by:

  • Direct connection of one incremental encoder per channel
  • Direct connection for gate signals (light barrier, etc.) using integrated digital inputs
  • A comparison function and output of response via integrated digital output modules

  The following functions are provided:

  • Two channels for upcounting and downcounting; each 32-bit
  • Counting frequency up to 500 kHz (RS 422 encoders)
  • Counting range 0 to 32 bit or ±31 bit, as desired
  • One-time or periodic counting process
  • Single, double or quadruple evaluation
  • Can be connected to incremental encoders; e.g., initiators, 24 V encoders or RS 422 encoders (5 V)
  • Gate control via levels
  • Setting via the digital input
  • Counter can be loaded with a predefined starting value
  • Comparison function using two user-definable reference values
  • Interrupt response when a reference value is reached, zero crossing, range overrun (selectable)
  • Output signal (24-V level), controlled by the comparison functions: with jointly specifiable pulse duration or as a continuous signal from the comparison value to the limit of the counting range.

  Standard Function Blocks
  CNT_CTRL (FC 0)	Controls the counters of the FM 450-1
  DIAG_INF (FC 1)	For providing the diagnostic information of the FM 450-1

  
  
  

  Mode of operation

  The FM 450-1 counter module detects pulses from incremental encoders at up to 500 kHz, as a function of directly connectable gate signals. It analyzes the direction of the pulses and compares independently on each channel the respective actual values with two specifiable comparison values.

  There are two possibilities available to output the reaction to the process:

  • Digital outputs:
    These can be configured via a common register with a selectable minimum pulse or with level switching.
  • Backplane bus:
    the FM 450-1 can send an interrupt to the CPU via the integrated backplane bus.

  Operating Modes
  Continuous counting	After the gate is enabled, endless counting takes place between the lower and upper count limit from the starting value
  One-shot counting	Depending on the main counting direction and beginning with the start value, there is one-shot counting up to the upper or lower range limit after the gate is enabled. Main counting direction up: From 0 to the programmable range limit. Main counting direction down: From the programmable start value to 0.
  Periodic counting	After the gate is enabled, periodic counting takes place from the starting value within the programmed counting range depending on the main count direction. Main counting direction up: Periodically from 0 to the programmable upper range limit -1. Main counting direction down: Periodically from the programmed start value to 1.

  
  
  

  Parameterization

  Parameters are assigned with STEP 7 taking into account the parameterization screen forms. A configuring package is available for this purpose.

  Технические данные

  Order number		6ES7450-1AP01-0AE0
  		FM 450-1, COUNTER MODULE, 2 CHANNELS
  Supply voltage
  Load voltage 1L+
  ● Reverse polarity protection		Yes
  Load voltage 2L+
  ● Reverse polarity protection		Yes
  Auxiliary voltage 1L+, load voltage 2L+
  ● Rated value (DC)		24 V
  ● permissible range, lower limit (DC)		20.4 V; Dynamic 18.5 V
  ● permissible range, upper limit (DC)		28.8 V; dynamic 30.2 V
  non-periodic skip
  — Duration		500 ms
  — Recovery time		50 s
  — Value		35 V
  Input current
  from load voltage 1L+ (without load), max.		50 mA
  from load voltage 2L+ (without load), max.		60 µA
  from backplane bus 5 V DC, max.		300 mA
  Encoder supply
  5 V encoder supply
  ● 5 V		Yes; 5.2 V +/-2%
  ● short-circuit protection		Yes
  ● Output current, max.		300 mA
  24 V encoder supply
  ● 24 V		Yes; 1L+ (-3 V)
  ● Short-circuit protection		Yes
  ● Output current, max.		300 mA
  Power loss
  Power loss, typ.		6 W
  Digital inputs
  Number of digital inputs		6
  Functions		1 for gate start, 1 for gate stop, 1 for setting the counter
  Input voltage
  ● for signal "0"		-28.8 ... +5V
  ● for signal "1"		+11 to +28.8V
  Input current
  ● for signal "1", typ.		9 mA
  Input delay (for rated value of input voltage)
  ● Input frequency (with a time delay of 0.1 ms), max.		200 kHz
  for standard inputs
  — parameterizable		Yes
  — at "0" to "1", max.		2.5 µs; >= 2.5 µs (200 kHz); <= 25 µs (20 kHz)
  Digital outputs
  Number of digital outputs		4
  Short-circuit protection		Yes; Clocked electronically
  Limitation of inductive shutdown voltage to		2L+ (-39 V)
  Output voltage
  ● for signal "0", max.		3 V
  ● for signal "1", min.		2L+ (-1,5 V)
  Output current
  ● for signal "1" rated value		0.5 A; Res. / P.D. 5 W tungsten 24 V DC
  ● for signal "1" permissible range for 0 to 60 °C, min.		5 mA
  ● for signal "1" permissible range for 0 to 60 °C, max.		0.6 A
  Output delay with resistive load
  ● "0" to "1", max.		300 µs
  Encoder
  Connectable encoders
  ● Incremental encoder (symmetrical)		Yes; With 2 pulse trains offset by 90°
  ● Incremental encoder (asymmetrical)		Yes
  ● 24 V initiator		Yes
  ● 24 V directional element		Yes; 1 pulse train, 1 direction level
  Counter
  Number of counter inputs		2; 32 bit or ±31 bit
  Counter input 5 V
  ● Type		RS 422
  ● Terminating resistor		220 Ω
  ● Differential input voltage		min. 0.5 V
  ● Counting frequency, max.		500 kHz
  Counter input 24 V
  ● Input voltage for signal "0"		-30 to +5V
  ● Input voltage for signal "1"		+11 to +30V
  ● Input current for signal "1", typ.		9 mA
  ● Counting frequency, max.		200 kHz
  ● Minimum pulse width		>= 2.5 µs (200 kHz); <= 25 µs (20 kHz) (parameterizable)
  Parameter
  Remark		Assigned binary addresses: 64 bytes/64 bytes
  Potential separation
  Potential separation digital inputs
  ● between the channels and backplane bus		Yes; Optocoupler
  Potential separation digital outputs
  ● between the channels and backplane bus		Yes; Optocoupler
  Potential separation counter
  ● between the channels and backplane bus		Yes; Optocoupler
  Permissible potential difference
  between different circuits		75 V DC/60 V AC
  Isolation
  Isolation tested with		500 V
  Connection method
  required front connector		1x 48-pin
  Dimensions
  Width		25 mm
  Height		290 mm
  Depth		210 mm
  Weights
  Weight, approx.		650 g

  
  

  Дальнейшая информация

  Brochures

  Information material for downloading can be found in the Internet:

  http://www.automation.siemens.com/infocenter