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Home Product 6ES5231-1AA21 Siemens SIMATIC S5 8-Channel Analog Input Module PLC I/O Component
S5 PLC

6ES5231-1AA21 Siemens SIMATIC S5 8-Channel Analog Input Module PLC I/O Component

Siemens Simatic Module
SIMATIC 6ES5231
Analog Input 1AA21
6ES5231-1AA21
Siemens Simatic Module SIMATIC 6ES5231-1AA21 Analog Input, industrial-grade signal processing for automation systems, high accuracy, robust design, seamless integration with SIMATIC controllers.
Categories:Automation
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Product Description

The Siemens Simatic Module SIMATIC 6ES5231-1AA21 is an analog input module designed for precision signal acquisition in industrial automation. It features 8 differential analog input channels, supporting voltage (±10 V) or current (0/4–20 mA) signals, with a resolution of 15 bits for high accuracy. The module integrates seamlessly into SIMATIC systems via a 9-pin Sub-D connector and communicates over PROFIBUS-DP, enabling direct connection to multiple compatible devices. Operating within a 24 V DC supply range (19.2–28.8 V) and a temperature span of -20°C to +60°C, it excels in harsh environments common in manufacturing, energy, or process industries. Key advantages include robust noise immunity, configurable diagnostics, and DIN rail mounting, while limitations involve dependency on external signal conditioning for specialized measurements. Its compact design optimizes control cabinet space, meeting standards like UL and CE. Input ranges are programmable, supporting ±80 mV to ±10 V for voltage or 0–20 mA for current, with a typical conversion time of 25 ms per channel.
Parameter Specification
Module Type Siemens Simatic Module | SIMATIC 6ES5231 Analog Input 1AA21
Input Channels 8 channels
Signal Type Voltage / Current / Resistance / Thermocouple
Input Resolution 13-bit + sign (voltage) | 11-bit (current)
Input Range (Voltage) ±10 V | ±1 V | ±100 mV
Input Range (Current) ±20 mA | 0-20 mA | 4-20 mA
Conversion Time Approx. 20 ms per channel
Electrical Isolation Channel-to-channel and channel-to-backplane isolation
Supply Voltage 24 V DC (20.4 V to 28.8 V)
Power Consumption 1.5 W (typical)
Operating Temperature 0°C to 60°C
Protection Class IP20
question:How does after-sales handle refurbished products found faulty during use?
answer:We offer free replacement or refund for refurbished products confirmed faulty. Provide proof and details for quick resolution.
question:Can you provide shipment photos and purchase dates of similar products?
answer:Yes, we share product shipment records and details upon request. Provide product codes or order references for specific info.
question:Do you offer technical selection guidance for product models?
answer:Our engineers provide technical support to help select optimal models and configurations based on project requirements.
question:Can the company ensure stable product supply?
answer:Yes, we maintain long-term partnerships and strict inventory management.
question:Why is there a transaction fee?
answer:The fee covers payment processing and administrative costs for secure transactions.
question:How does after-sales handle refurbished products found faulty during use?
answer:We offer free replacement or refund for refurbished products confirmed faulty. Provide proof and details for quick resolution.
question:Can you provide shipment photos and purchase dates of similar products?
answer:Yes, we share product shipment records and details upon request. Provide product codes or order references for specific info.
question:Do you offer technical selection guidance for product models?
answer:Our engineers provide technical support to help select optimal models and configurations based on project requirements.
question:Can the company ensure stable product supply?
answer:Yes, we maintain long-term partnerships and strict inventory management.
question:Why is there a transaction fee?
answer:The fee covers payment processing and administrative costs for secure transactions.
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