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6ES7650-8AK70-0AA0

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Siemens 6ES7650-8AK70-0AA0 is an ET 200PA SMART analog input module that converts sixteen 0/4–20 mA field-current signals into isolated backplane data.
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Technical specifications for 6ES7650-8AK70-0AA0

  • Manufacturer:
    Siemens
  • Part Number:
    6ES7650-8AK70-0AA0
  • Product Family:
    Siemens Simatic PCS 7 System
  • Product Type:
    ET 200PA SMART 16-Channel Isolated Analog Input Module
  • Stock:
    1
  • Analog Inputs:
    16
  • Input Signal:
    0/4 to 20 mA
  • Supported Transmitters:
    2-wire and 4-wire
  • Maximum 2-Wire Transmitter Burden:
    750 Ω
  • Maximum Shielded Cable Length:
    800 m
  • Measurement Principle:
    Sigma-delta
  • Nominal Resolution:
    15/16 bit
  • Selectable Integration Times:
    16.6 / 20 / 100 ms
  • Basic Conversion Times:
    19.8 / 23.8 / 119 ms
  • Interference Suppression:
    10 / 50 / 60 Hz
  • Smoothing Levels:
    None, low, medium, high
  • Typical Power Loss:
    3.3 W
  • Transmitter Supply:
    24 V DC, short-circuit protected
  • Maximum Transmitter Supply Current:
    70 mA
  • Potential Grouping:
    16 channels in one group
  • Isolation Test Voltage:
    500 V
  • Maximum Operating Temperature:
    60 °C
  • Required Front Connector:
    1 x 40-pin
  • Required Interface Module:
    IM 650-8PH
  • Hot Removal and Insertion:
    Supported
  • Weight:
    0.617 lbs (0.28 kg)
  • Estimated shipping dimensions:
    15.1x13.1x5.1cm
  • Tariff Code:
    85389091
  • Country of origin:
    Germany
  • Place of shipment:
    Xiamen,Fujian,China
By purchasing this item, you agree to the Terms & Conditions, ApterPower is not an authorized distributor for listed manufacturers or tradenames and therefore the manufacturer's warranty does not apply. All our products come with ApterPower's 1-year warranty.

More Information

Overview Manuals Current Inputs Conversion Isolation Transmitter Power

Features:

  • Sixteen current inputs acquire two-wire or four-wire transmitter signals through one forty-pole connector.
  • Sigma-delta conversion combines selectable integration with filtering for 10, 50, or 60 Hz interference.
  • The single channel group is isolated from the backplane and supplies supported transmitters with protected 24 V DC.
Siemens 6ES7650-8AK70-0AA0 converts all sixteen field currents before transferring values to the ET 200PA SMART backplane.

Integration and smoothing on 6ES7650-8AK70-0AA0 determine how quickly a changing loop appears in the controller data.

The shared potential group of 6ES7650-8AK70-0AA0 makes common-mode and wiring limits apply across the module.

The Siemens 6ES7650-8AK70-0AA0 ET 200PA SMART 16-Channel Isolated Analog Input Module may still be available for purchase and support from Apter Power beyond End-Of-Life (EOL) by the manufacturer (OEM).
Siemens 6ES7650-8AK70-0AA0 ET 200PA SMART 16-Channel Isolated Analog Input Module Manuals,Datasheets,Link Important Notice: Other accessories, manuals, cables, calibration data, software, etc. are not included with this equipment unless listed in the above stock item description. All prices are shown in USD.

Two-Wire and Four-Wire Loops

  • Channel group: Sixteen current inputs share one potential group at the front connector.
  • Two-wire loop: The module can feed a supported two-wire transmitter and measure the returning loop current.
  • Four-wire loop: A separately powered transmitter connects its current output to the assigned input pair.
  • Cable limit: Shielded current-loop wiring may extend to the stated 800 m maximum.

Integration, Filtering and Response

  • Measurement method: Sigma-delta conversion turns the selected loop current into a digital process value.
  • Integration choice: Intervals of 16.6, 20, or 100 ms align rejection with 60, 50, or 10 Hz interference.
  • Conversion delay: The basic conversion time follows the selected integration interval.
  • Smoothing: None, low, medium, or high smoothing changes response to short signal variations.

Shared Potential and Diagnostics

  • Channel relation: The sixteen inputs are not isolated from one another.
  • Backplane boundary: The complete input group is electrically isolated from the backplane bus.
  • Common-mode limit: Field wiring must keep channel and internal-reference differences within the stated voltage limits.
  • Fault reporting: Group-error indication and readable diagnostic information expose module conditions.

Protected Sensor Supply Path

  • Rated output: The module provides a 24 V DC transmitter-supply path.
  • No-load level: The unloaded output is specified at 22 V DC.
  • Current boundary: Transmitter supply current is limited to the documented maximum of 70 mA.
  • Fault containment: Short-circuit protection limits a transmitter-supply fault before it propagates through the group.
Description
Siemens 6ES7650-8AK70-0AA0 is a 16-channel analog input module for the ET 200PA SMART station. It receives two-wire or four-wire current signals, converts them with a sigma-delta process, and transfers the resulting values and diagnostics to the backplane through the required IM 650-8PH interface module.

All sixteen inputs of 6ES7650-8AK70-0AA0 form one potential group rather than sixteen isolated channels. The group is isolated from the backplane bus, while the channel commons and electronics supply share the documented internal reference relationships.

Each current loop connected to 6ES7650-8AK70-0AA0 can use selectable integration and smoothing to balance response time against mains-frequency interference. A longer integration interval increases the conversion time but improves suppression at the corresponding 10, 50, or 60 Hz frequency.

The transmitter supply of 6ES7650-8AK70-0AA0 provides a short-circuit-protected 24 V DC path for supported sensors. Group-error indication and readable diagnostics report module conditions, while the forty-pole front connector keeps all field-current paths within the single channel group.
Alternative Names
6ES76508AK700AA0 6ES7650 8AK70 0AA0 6ES7 650 8AK70 0AA0 Siemens 6ES7650-8AK70-0AA0 6ES7650-8AK70-0AA0 16-Channel Analog Input Module 6E57650-8AK70-0AA0 6ES7650-BAK70-0AA0 6ES7650-8AK7O-OAAO
Technical notes
Siemens 6ES7650-8AK70-0AA0 converts sixteen current loops through one sigma-delta channel group with selectable integration, smoothing, and module diagnostics.
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FAQS

The following is a list of questions commonly asked by our customers. Please contact us if you have a question about our process that is not answered below.
Why do all channels of 6ES7650-8AK70-0AA0 show offset or noise together?
Because 6ES7650-8AK70-0AA0 uses one shared potential group, check common/reference wiring, shield termination, and group common-mode voltage before treating channels as independent faults.
How should integration time be selected on 6ES7650-8AK70-0AA0?
Set 6ES7650-8AK70-0AA0 to the interval that rejects the site interference frequency while accepting the corresponding longer conversion response.
Why can a two-wire transmitter fail on 6ES7650-8AK70-0AA0 while a four-wire source works?
Check the 6ES7650-8AK70-0AA0 transmitter-supply terminals, loop polarity, burden, short-circuit condition, and the selected 0/4–20 mA range.
What must be checked before hot insertion of 6ES7650-8AK70-0AA0?
Confirm the 6ES7650-8AK70-0AA0 IM 650-8PH station, slot configuration, forty-pole connector, field-loop safety, and permitted replacement procedure.
Why can smoothing make 6ES7650-8AK70-0AA0 appear slow?
Medium or high smoothing on 6ES7650-8AK70-0AA0 averages more conversion results, so genuine loop changes take longer to reach the controller value.
How is a group fault investigated on 6ES7650-8AK70-0AA0?
Read the 6ES7650-8AK70-0AA0 diagnostic information, then check transmitter power, group reference, potential differences, wiring, and all sixteen current loops.

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