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6ES7335-7HG02-0AB0

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An S7-300 station uses Siemens 6ES7335-7HG02-0AB0 as an SM 335 analog I/O module that converts four field inputs for the CPU and drives four analog outputs.
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Technical specifications for 6ES7335-7HG02-0AB0

  • Manufacturer:
    Siemens
  • Part Number:
    6ES7335-7HG02-0AB0
  • Product Family:
    Siemens Simatic S7-300
  • Product Type:
    SIMATIC S7-300 SM 335 Analog Input/Output Module
  • Stock:
    1
  • Analog Inputs:
    Four voltage or current channels
  • Input Resolution:
    Up to 14 bits
  • Analog Outputs:
    Four voltage or current channels
  • Output Resolution:
    11 or 12 bits, depending on selected range
  • Isolation:
    Channels isolated from the backplane bus
  • Diagnostic Alarm:
    Supported
  • Hardware Interrupt:
    Supported for input limit monitoring
  • Front Connector:
    One 20-pole connector
  • Backplane Current:
    Maximum 100 mA from 5 V DC
  • External Supply:
    24 V DC
  • Permissible External Supply:
    20.4 to 28.8 V DC
  • Module Width:
    40 mm
  • Weight:
    0.7694 lbs (0.349 kg)
  • Estimated shipping dimensions:
    4x12.5x12cm
  • 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 Input Conversion Output Conversion Isolation and Alarms Connector Planning

Features:

  • Four input channels translate field signals into S7-300 values.
  • Four output channels convert CPU words back into voltage or current.
  • The front connector carries both directions while the backplane exchanges process data.
Input range selection determines how each physical signal is represented in the controller.

Output range selection determines how each digital command becomes a field voltage or current.

Diagnostic and limit-monitoring events let the CPU distinguish configured channel conditions from routine analog changes.

The Siemens 6ES7335-7HG02-0AB0 S7-300 SM 335 Analog I/O Module may still be available for purchase and support from Apter Power beyond End-Of-Life (EOL) by the manufacturer (OEM).
Siemens 6ES7335-7HG02-0AB0 S7-300 SM 335 Analog I/O 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.

Turning voltage or current into controller values

  • Range selection: The configured measurement range defines how the electrical input is scaled.
  • Conversion: Each of the four input channels produces a digital process value for the CPU.
  • Limit check: Configured thresholds can trigger the documented hardware interrupt.
  • Diagnostics: Channel and module information helps separate wiring faults from changing process values.

Driving four analog field commands

  • CPU value: The S7-300 writes one output word for each configured channel.
  • Electrical range: The selected voltage or current range converts that word into the field signal.
  • Field supply: The 24 V DC connection powers the analog output circuitry.
  • Shared connector: Input, output and supply conductors terminate at the 20-pole front connector.

Separating field-side events from backplane communication

  • Backplane boundary: Channel electronics are isolated from the S7-300 backplane bus.
  • Diagnostic alarm: An enabled diagnostic condition is reported to the CPU through the module interface.
  • Hardware interrupt: Input limit monitoring can request prompt CPU processing without continuous polling.
  • Channel assignment: The project must match each terminal with its configured input or output range.

Keeping mixed analog wiring organized

  • Twenty poles: One front connector carries all four inputs, four outputs and their reference wiring.
  • Signal type: Voltage and current circuits use the terminals assigned to the selected channel range.
  • Reference conductors: Return and reference paths must follow the channel wiring diagram.
  • Module slot: The backplane connector exchanges data with the CPU after the module is seated in the S7-300 rack.
Description
Within a SIMATIC S7-300 rack, Siemens 6ES7335-7HG02-0AB0 serves as an isolated SM 335 analog input/output module. It brings four field input values into the process image and converts four CPU output words into voltage or current signals for connected devices.

The input section of 6ES7335-7HG02-0AB0 measures voltage or current ranges and converts each selected signal into a digital value. Limit monitoring can generate the documented hardware interrupt, while diagnostic evaluation distinguishes a channel problem from ordinary process movement.

On the output side, 6ES7335-7HG02-0AB0 converts controller values into the configured analog ranges through the same 20-pole front connector. The external 24 V DC supply powers the field-side output circuitry while the S7-300 backplane handles module communication.
Alternative Names
6ES73357HG020AB0 6ES7335 7HG02 0AB0 6ES7 335-7HG02-0AB0 Siemens 6ES7335-7HG02-0AB0 6ES7335-7HG02-0AB0 SIMATIC SM 335 Module Siemens 6ES73357HG020AB0 6ES 7335 7HG02 0AB0 6ES7335-7HG02 0AB0
Technical notes
Range selection and channel wiring must agree before Siemens 6ES7335-7HG02-0AB0 is enabled. Treat input and output words as separate S7-300 process values even though both directions share one module.
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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.
Can 6ES7335-7HG02-0AB0 read resistance or thermocouple sensors directly?
No. The documented inputs of 6ES7335-7HG02-0AB0 are for voltage or current ranges, so resistance and thermocouple sensors require the appropriate measuring hardware.
Why does Siemens 6ES7335-7HG02-0AB0 need range settings before wiring is energized?
Siemens 6ES7335-7HG02-0AB0 interprets terminals according to the configured voltage or current range; a mismatch can produce invalid values or improper loading.
How are the inputs and outputs of 6ES7335-7HG02-0AB0 separated in the PLC program?
The 6ES7335-7HG02-0AB0 exchanges distinct input and output process words with the S7-300 CPU even though both signal directions terminate on the same module.
What can trigger a hardware interrupt from Siemens 6ES7335-7HG02-0AB0?
When limit monitoring is configured, Siemens 6ES7335-7HG02-0AB0 can issue a hardware interrupt as an input value crosses the assigned threshold.
Which connector should be checked when several 6ES7335-7HG02-0AB0 channels are wrong?
Inspect the 20-pole front connector of 6ES7335-7HG02-0AB0, including the 24 V DC supply and shared reference wiring, before treating simultaneous channel errors as a backplane problem.