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Technical Overview
The Siemens 6ES5461-5AA11 analog input module belongs to the SIMATIC S5 programmable logic controller family. This module captures analog signals from field transmitters and sensors for process monitoring and control applications. It provides 8 isolated input channels within a single slot. Furthermore, each channel is individually configurable for either voltage or current signals, thereby offering flexibility for diverse measurement tasks.
Key Technical Specifications
| Parameter | Specification |
|---|---|
| Model | 6ES5461-5AA11 |
| Product Type | Analog Input Module |
| Compatible System | SIMATIC S5 |
| Number of Inputs | 8 isolated analog channels |
| Configurable Signal Types | 0-10 V, ±10 V, 0-20 mA, 4-20 mA |
| Resolution | 12 bits (4096 steps) |
| Conversion Time | ≤ 25 ms per channel |
| Accuracy | ±0.5% of full-scale range |
| Common Mode Rejection | ≥ 80 dB at 50 Hz |
| Input Impedance | ≥ 10 MΩ for voltage, ≤ 250 Ω for current |
| Isolation | 500 V AC between field inputs and system |
| Indicators | LED for module status and fault detection |
| Power Supply | 5 V DC from S5 backplane |
| Current Consumption (5V) | 200 mA typical |
| Dimensions | 1 slot width (25 mm) × 233 mm × 150 mm |
| Weight | Approximately 0.9 kg |
| Operating Temperature | 0°C to 60°C |
Performance and Application Benefits
The 6ES5461-5AA11 provides 8 analog input channels for monitoring process variables in S5 automation systems. Moreover, users can configure each input independently for voltage or current signals, thereby accommodating various field transmitters and sensors. In addition, the 12-bit resolution delivers accurate measurement values for precise process control applications. Consequently, the fast conversion time ensures responsive monitoring of dynamic process variables. Furthermore, the module’s internal signal conditioning filters high-frequency noise for stable and reliable readings. Therefore, this module is well-suited for applications requiring high-quality analog measurements, including temperature monitoring, pressure control, and flow measurement in chemical processing and water treatment facilities.