Siemens 6ES5498-1AA51 measuring range module

Siemens 6ES5498-1AA51 (SIMATIC S5) Overview

The Siemens 6ES5498-1AA51 is a measuring range module specifically designed for use with analog input modules within the SIMATIC S5 Programmable Logic Controller (PLC) system. Its purpose is to adapt the input range of an analog input module to accommodate 4-20mA current signals from 2-wire measuring transducers (MU). This module allows the S5 PLC to accurately read and process analog current signals from field devices.

Product Detailed Description

• Function: This module acts as an interface or adapter for specific analog input modules (likely in the S5-115U, S5-135U, or S5-155U series) to enable them to receive and correctly interpret 4-20mA current signals from 2-wire sensors/transducers. A 4-20mA signal is a common standard in industrial automation for transmitting measured values (e.g., pressure, temperature, flow) over long distances with high noise immunity.

• Purpose: Without this specific measuring range module, the associated analog input module might not be able to correctly handle the 4-20mA signal, or it might require a different type of signal. The "2-wire MU" indicates that it's designed for 2-wire transducers, where the power supply for the transducer is often provided through the same two wires as the current signal itself, which the analog input module (with this measuring range module) would facilitate.

• Compatibility: It's designed to be inserted into or connected with specific Siemens SIMATIC S5 analog input modules, potentially impacting their overall functionality and wiring.

Product Parameters

(Note: Exact detailed technical parameters for a discontinued component like this are typically found in the original SIMATIC S5 system manuals, which may be archived. The following are typical characteristics based on its described function.)

• Type: Measuring Range Module (for Analog Inputs)

• Input Signal Compatibility: 4-20 mA DC (Current)

• Transducer Type Compatibility: 2-wire Measuring Transducers (MU)

• Associated PLC System: Siemens SIMATIC S5 (e.g., S5-115U, S5-135U, S5-155U PLC series)

• Physical Form: Typically a small, passive component or a circuit board designed to fit into a specific slot or connector of an analog input module.

• Connections: Would have connections (e.g., screw terminals or crimp terminals) for connecting the 2-wire sensor and integrating with the analog input module's internal circuitry.

• Lifecycle Status: PM500: Discontinued Product or end of PLM & Support. End of product lifecycle since: 01/10/22. (Product was deleted without replacement).

• Country of Origin: Germany (as per Siemens Mall data).

• RoHS Compliance: Product is not RoHS-compliant (as per Siemens Mall data). This is important for new installations or compliance requirements.

• REACH Compliance: Contains Lead (CAS-No. 7439-92-1) > 0.1% (w/w).

Product Advantages (Historical Context)

• Compatibility with S5 Systems: Enabled older SIMATIC S5 PLCs to interface with widely used 4-20mA 2-wire sensors.

• Reliable Industrial Standard: Supported a robust and common industrial signal standard (4-20mA) known for its noise immunity and ability to transmit over long distances.

• Simplified Wiring (for 2-wire): Facilitated the use of 2-wire transducers, which often simplify field wiring by carrying both power and signal on the same two wires.

• Part of a Comprehensive System: Integrated seamlessly into the broader SIMATIC S5 automation ecosystem.

Precautions

• Obsolescence: This product is officially discontinued by Siemens. Spare parts are generally no longer available from Siemens directly, and repairs are not officially supported. Relying on this part for new installations or critical applications carries significant risk due to potential lack of spare parts and technical support. Migration to SIMATIC S7 or TIA Portal is strongly recommended by Siemens.

• Wiring Accuracy: Always follow the specific wiring diagrams in the SIMATIC S5 analog input module's manual (e.g., for 6ES5 460-7LA12, as referenced in search results) to ensure correct connection of 2-wire sensors to avoid damage or incorrect readings.

• Power Supply: Ensure the 2-wire transducer's power requirements are met, as the module facilitates power delivery through the signal lines.

• Environmental Conditions: As with any industrial electronic component, operate within the specified temperature, humidity, and vibration limits of the associated SIMATIC S5 modules.

• Safety: Always de-energize the PLC rack and modules before installing or removing this module or performing any wiring. Adhere to all relevant electrical safety standards.

• RoHS/REACH Compliance: Be aware that this product is not RoHS compliant and contains lead. This might impact its use in certain regions or new equipment where environmental regulations are strict.

Product Applications (Historical Context)

The 6ES5498-1AA51 was used in various industrial applications where 4-20mA 2-wire sensors were employed and integrated into SIMATIC S5 PLC systems. These applications included:

• Process Control: Measuring and controlling analog values like temperature, pressure, flow, and level in chemical plants, water treatment facilities, food and beverage processing, etc.

• Manufacturing Automation: Reading sensor data from various transducers in production lines.

• Building Management Systems (Older Installations): Interfacing with HVAC sensors or other analog inputs.

• Energy Management (Older Installations): Monitoring power consumption or other analog electrical parameters.

• Any SIMATIC S5 System: Wherever an existing S5 PLC system needed to integrate 2-wire 4-20mA current signals into its control logic.

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