Technical Specifications
| Parameter Name | Value |
|---|---|
| Product Model | 6DS1731-8DD |
| Manufacturer | Siemens |
| Product Type | Analog Input Module (AI Module) |
| Series | Teleperm M / Teleperm ME |
| Number of Channels | 8 |
| Input Signal Types | 0-20mA, 4-20mA, 0-10V, 0-Vcc, ±10V |
| Input Resistance | Voltage: ≥ 10 MΩ, Current: ≤ 250 Ω (typical) |
| A/D Resolution | 12-16 bit (configurable) |
| Accuracy | ±0.01% to ±0.1% of Full Scale |
| Response Time | ≤ 1 ms per channel |
| Supply Voltage | 24V DC |
| Power Consumption | Max 1.5W to 8W (depending on configuration) |
| Operating Temperature | -20°C to +60°C |
| Storage Temperature | -40°C to +85°C |
| Dimensions | 20.3 cm × 5.1 cm × 25.4 cm (approximate) |
| Weight | 0.5 – 0.8 kg |
| Protection Rating | IP20 |
| Isolation | 500V AC test voltage (input to system) |
| Compatibility | AS620 Automation Station, Teleperm M Chassis |
| Communication | System Backplane / Nahbus |
| Lifecycle Status | Discontinued (EOL) – Available as New Surplus/Reconditioned |
Main Features and Advantages
Multi-Range Input Flexibility: The SIEMENS 6DS1731-8DD supports a comprehensive range of analog input signals, including 0-20mA, 4-20mA, 0-10V, and ±10V, making it suitable for connection to virtually all standard industrial transmitters and sensors . This flexibility allows the SIEMENS 6DS1731-8DD to accommodate diverse field instrumentation without requiring additional signal conditioning hardware. Each of the eight channels can be independently configured for the appropriate signal type through software, simplifying system integration and reducing the need for multiple module variants in the spare parts inventory .
High Precision and Fast Response: The SIEMENS 6DS1731-8DD delivers exceptional measurement accuracy, with precision levels reaching ±0.01% of full scale, ensuring reliable data acquisition for critical process control applications . The module features a rapid response time of ≤1 ms per channel, enabling real-time monitoring of fast-changing process variables. The high-resolution A/D conversion (12-16 bit configurable) ensures that even small signal variations are captured accurately, providing the control system with high-fidelity process data essential for precise regulatory control . The SIEMENS 6DS1731-8DD also incorporates optical isolation between the input circuitry and the system backplane, providing robust protection against electrical noise and transients commonly encountered in industrial environments . This isolation significantly enhances the reliability of process measurements and protects the sensitive control station electronics from field-side disturbances.
Advanced Driver Architecture: The SIEMENS 6DS1731-8DD supports two driver configurations for signal acquisition. Using the AE driver architecture, one driver is dedicated to each analog value channel, providing maximum flexibility for individual channel processing . Alternatively, the 8-channel analog input routing block (AR) can be employed as a consolidated driver that acquires all eight analog values simultaneously. This architecture enables the SIEMENS 6DS1731-8DD to efficiently store individual analog values in GA blocks for further processing by function blocks via interconnected inputs, or to transfer analog values directly to any analog parameter without requiring P-code programming . This versatile approach streamlines system configuration and simplifies the integration of analog measurements into the overall control strategy.
