6ES7331-7KB02-0AB0 Siemens Simatic

Original price was: $363.00.Current price is: $279.00.

1 in stock



Article Number (Market Facing Number) 6ES73317KB020AB0 | 6ES73317KB020AB0
Product Description SIMATIC S7-300, Analog input SM 331, isolated, 2 AI, Resolution 9/12/14 bits, U/I/thermocouple/resistor, alarm, diagnostics, 1x 20-pole, Removing/inserting with active backplane bus
Product family SM 331 analog input modules
Product Lifecycle (PLM) PM400:Phase Out Started

The Siemens SIMATIC 6ES7331-7KB02-0AB0 is an analog input module used in the SIMATIC S7-300 series of programmable logic controllers (PLCs). This module is designed to handle various analog input signals and convert them into digital values for processing by the PLC. Here are some key features and specifications of this module:

Key Features and Specifications:

  1. Analog Inputs:
    • The module has 8 analog input channels.
    • It supports both voltage and current inputs.
  2. Input Types:
    • Voltage input ranges: ±10V, 0-10V, ±5V, 0-5V.
    • Current input ranges: 0-20mA, 4-20mA.
  3. Resolution:
    • The module offers a resolution of 12 bits plus sign.
  4. Conversion Time:
    • The typical conversion time per channel is 1 ms.
  5. Diagnostics:
    • The module provides diagnostic functions such as wire break and overflow/underflow detection.
  6. Connection:
    • The module uses a 20-pin front connector for wiring.
  7. Power Supply:
    • The power supply voltage is typically 24V DC.
  8. Configuration:
    • It can be configured using the STEP 7 software.
  9. Dimensions and Mounting:
    • The module dimensions are compatible with the S7-300 series rack.
    • It is designed to be mounted on a standard DIN rail.


  • The 6ES7331-7KB02-0AB0 module is commonly used in various industrial automation applications where accurate measurement and control of analog signals are required.
  • It is suitable for processes that involve temperature measurement, pressure monitoring, flow measurement, and other similar applications.


  • Flexibility: Supports a wide range of input signals, making it adaptable to various applications.
  • Accuracy: High resolution and fast conversion time ensure precise measurements.
  • Reliability: Built-in diagnostic functions enhance system reliability by detecting issues early.


  1. Installation: Mount the module on the S7-300 rack and connect the power supply.
  2. Wiring: Connect the analog sensors to the input channels using the front connector.
  3. Configuration: Use the STEP 7 software to configure the module settings according to your application requirements.
  4. Integration: Integrate the module into your PLC program to read the analog values and use them for control and monitoring tasks.