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Precision Analog Input for SIMATIC S5 Systems
The 6ES5498-1AA11 measuring range module functions as a specialized analog input submodule for the SIMATIC S5 product family. This module integrates with S5-115U, S5-135U, and S5-155U systems, typically through IM308 or IM309 interface modules. It converts analog sensor signals into digital values for the CPU to process effectively. Consequently, this module provides a versatile solution for high-precision analog measurement tasks in legacy automation systems.
Technical Specifications
| Parameter | Specification |
|---|---|
| Manufacturer | Siemens |
| Product Line | SIMATIC S5 |
| Model | 6ES5498-1AA11 |
| Product Type | Measuring Range Module / Analog Input Submodule |
| Input Channels | 8 (differential) |
| Signal Types | ±10V, ±5V, 0-10V, 0-20mA, 4-20mA, Pt100, Ni100, Thermocouple |
| Resolution | 12 bits (including sign bit) |
| Conversion Time | Approx. 20 ms per channel (all 8 channels) |
| Input Impedance | > 10 MΩ (voltage), 150 Ω (current) |
| Accuracy | ≤ ±0.5% of full scale |
| Isolation Test Voltage | 500 V DC |
| Operating Temperature | 0°C to +60°C |
| Storage Temperature | -40°C to +70°C |
| Relative Humidity | 5% to 95% (non-condensing) |
| Dimensions (W x H x D) | Approx. 45 x 290 x 210 mm |
| Weight | Approx. 0.8 kg |
| Compatibility | S5-115U, S5-135U, S5-155U (with IM308/IM309) |
| Certifications | CE, UL (typical for S5 range) |
Signal Type Flexibility and Channel Configuration
The 6ES5498-1AA11 offers 8 differential input channels with exceptional flexibility. Each channel supports a wide array of signal types, including voltage ranges like ±10V and 0-10V, current signals such as 0-20mA and 4-20mA, and temperature sensors like Pt100, Ni100, and various thermocouples. Users can configure each channel through software or hardware jumpers to match the connected sensor’s output. Therefore, this module eliminates the need for multiple dedicated cards, saving both rack space and spare parts costs.
Conversion Accuracy and Noise Immunity
This measuring range module achieves a resolution of 12 bits with an accuracy of ≤ ±0.5% of full scale. The conversion time of approximately 20 ms for all 8 channels ensures timely data acquisition for control loops. Furthermore, the module incorporates high-quality isolation transformers and filter circuits. This design provides galvanic isolation between input channels and the internal bus, effectively blocking common-mode interference from sources like variable frequency drives. Consequently, the module delivers stable readings even in electrically noisy industrial environments.
Diagnostics and Maintenance Features
The 6ES5498-1AA11 includes practical diagnostic capabilities for simplified maintenance. LED indicators on the front panel display module status and channel-specific faults such as wire breaks or over-range conditions. This diagnostic feature enables maintenance personnel to quickly pinpoint issues, significantly reducing mean time to repair. Moreover, the module supports isochronous mode, ensuring simultaneous data acquisition across all 8 channels. This feature proves essential for complex control algorithms requiring differential calculations, such as flow compensation or temperature difference control.
Physical Characteristics and Installation
Weighing approximately 0.8 kg, this module occupies a standard slot within the S5 rack. Its compact design requires the use of IM308 or IM309 interface modules for connection to the host system. Users can install the 6ES5498-1AA11 quickly without special tools. The module’s robust construction withstands typical industrial conditions.