Analog Expansion Module

The SM 1231 analog output module converts analog signals from the process into digital signals, which are processed internally by SIMATIC S7-1200.

With the help of SM 1231 RTD module, high-precision temperature measurement can be carried out using temperature sensors based on thermal resistance.

With the help of SM 1231 thermocouple module, mature thermocouples can be used for high-precision temperature measurement.

The SM 1234 analog mixing module has a small volume and provides digital input and output.

The analog module of the S7-1200 is an important extension module of the S7-1200 PLC series design for processing analog signals (such as voltage, current, temperature, etc.). Here are the advantages:

1. 1.High precision measurement

• Analog module with high resolution (such as 16-bit), can accurately collect and process analog signals, suitable for applications requiring high measurement accuracy.
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2. 2.Multiple signal types are supported

• Supports a variety of analog signal inputs/outputs, including voltage (e.g. ±10V, 0-10V), current (e.g. 0-20mA, 4-20mA) and resistance signals (e.g. PT100, PT1000 temperature sensors) to meet diverse industrial needs.
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3. 3.Flexible configuration

• The module supports multi-channel configuration (such as 4 or 8 channels). Users can select the number of input or output channels based on actual requirements, flexibly adapting to different application scenarios.
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4. 4.Integrated diagnostic function

• The built-in diagnostic function of the module can monitor signal status in real time, detect disconnection, short circuit, overrange and other faults, and provide detailed diagnostic information through the TIA Portal software to facilitate quick troubleshooting.
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5. 5.Easy to install and expand

• The compact design of the module allows easy installation and can be connected directly to the right side of the S7-1200 PLC without additional wiring. At the same time, it supports multi-module expansion to meet the needs of complex systems.
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6. 6.Strong anti-interference ability

• Analog modules are industrial-grade designed with good electromagnetic interference (EMC) resistance and can operate stably in harsh industrial environments.
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7. 7.Seamless integration with TIA Portal

• Through the TIA Portal software, users can easily configure, program and debug analog modules, support parametric Settings and online monitoring, and improve engineering efficiency.
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8. 8.High cost performance

• While ensuring high performance and reliability, analog modules are relatively affordable and suitable for small and medium-sized automation projects, reducing the total cost of ownership for users.
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9. 9.Fast response time

• The module has fast signal processing capability, which can collect and output analog signals in real time, meeting the application scenarios with high real-time requirements.
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10. 10.Wide range of application scenarios

• Suitable for various industrial fields, such as process control (temperature, pressure, flow monitoring), motion control (speed, position feedback), energy management (current, voltage monitoring), etc.
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The analog module of S7-1200 has become an important tool for processing analog signals in industrial automation system because of its high precision, flexible configuration, powerful diagnostic function and anti-interference ability. It not only simplifies the system design, but also improves the reliability and accuracy of the measurement, making it an ideal choice in the field of industrial control.