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Siemens 7MH4138-6AA00-0BA0 SIMATIC ET 200SP TM SIWAREX WP321 ST Weighing Module

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Siemens 7MH4138-6AA00-0BA0 SIMATIC ET 200SP TM SIWAREX WP321 ST Weighing Module

7MH4138-6AA00-0BA0
Condition:
New and Original
In stock:
25
Weight
0.03 kg
Demension
1.5 x 7.3 x 5.8 cm
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WP321 ST · Product Identity
Precision Weighing Control
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Siemens 7MH4138-6AA00-0BA0 SIMATIC ET 200SP TM SIWAREX WP321 ST Weighing Module

PRODUCT SERIESSiemens TM SIWAREX WP321 ST Weighing Electronics Series
Siemens 7MH4138-6AA00-0BA0 is a single-channel SIWAREX WP321 ST weighing module for ET 200SP platform and hopper scales. The 7MH4138-6AA00-0BA0 connects full-bridge load cells and provides RS485 diagnostics for accurate industrial weighing, automation, and maintenance applications.
Product StatusNew and Original
WarrantyOne-year warranty
Tariff Code85389091
Fast Delivery1–3 working days

Product Information

Siemens 7MH4138-6AA00-0BA0 is a single-channel TM SIWAREX WP321 ST weighing technology module that integrates static scales directly into SIMATIC ET 200SP. It accepts analog full-bridge strain-gauge load cells in four- or six-wire configurations and supports platform scales, hopper scales, silo fill-level monitoring, force measurement, crane or cable load measurement, and belt-tension monitoring. The 7MH4138-6AA00-0BA0 provides 24 V DC operation, selectable measuring ranges from ±1 to ±4 mV/V, a 600 Hz sampling rate, and an RS485 interface for SIWATOOL V7, SIWAREX DB, or a remote display. Values, limit monitoring, and diagnostics are available to the SIMATIC controller through the ET 200SP system, while factory calibration supports module replacement without recalibrating the scale.

Rated load voltage 24 V DC Sampling rate 600 Hz
Permissible supply range 19.2–28.8 V DC Input signal resolution ±500,000 parts per mV/V
Maximum current consumption 100 mA Full-bridge resistance 40–4,100 Ω
Typical power loss 2 W RS485 transmission rate 115.2 kbit/s
Load-cell signal range −4 to +4 mV/V Operating temperature −25 to +60 °C horizontal

Industrial Use Cases

Platform and hopper scales: Measures static weight with analog full-bridge load cells in non-automatic industrial weighing systems.
Fill-level monitoring for silos and bins: Converts load-cell signals into weight values used to monitor bulk-material inventory in SIMATIC automation.
Crane and cable load measurement: Processes force-sensor signals to supervise mechanical loads in lifting and material-handling equipment.
Industrial force measurement: Acquires strain-gauge full-bridge signals for machine and process force monitoring.
Belt-tension monitoring: Measures force applied to conveyor or process belts and reports values and limit conditions to the controller.
Hazardous-area weighing: Supports scale configurations in hazardous areas, including direct use in ATEX Zone 2 where system requirements are met.

Industry Safety Applications

Refinery: Controls emergency shutoff valves to prevent fire and explosion.
Chemical Plant: Provides safety interlocks to automatically isolate hazardous pipelines.
Power Plant: Monitors boilers and turbines, triggering emergency shutdowns during unsafe conditions.
Pharmaceutical Plant: Protects critical reactors from temperature and pressure limits.
Fertilizer Plant: Safeguards high-pressure ammonia units to prevent gas leaks.

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Company Services

Verified product information. Clear product details and pictures are provided during the inquiry and quotation process.
Broad inventory access. Extensive inventory supports sourcing of discontinued and difficult-to-find industrial components.
Fast order handling. In-stock products are normally prepared for shipment within one to three working days after payment.
Worldwide delivery. International delivery is available through DHL, UPS, FedEx, and TNT.
Protective packaging. Product condition is checked before shipment, and suitable packaging is used for transit protection.
Responsive quotations. Each inquiry is reviewed to provide competitive pricing and practical purchasing support.
Warranty support. A one-year warranty is provided according to the confirmed product condition and order terms.

Disclaimer

Ewolomodule sells new and surplus products and develops channels for purchasing such products. This website has not been approved or recognized by any of the listed manufacturers or trademarks. Ewolomodule is not an authorized distributor, dealer, or representative of the products displayed on this website. All product names, trademarks, brands, and logos used on this website are the property of their respective owners. The description, explanation, or sale of products with these names, trademarks, brands, and logos is for identification purposes only and is not intended to indicate any association with or authorization from any rights holder.
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Disclaimer: Ewolomodule sells new and surplus products and develops channels for purchasing such products. This website has not been approved or recognized by any of the listed manufacturers or trademarks. Ewolomodule is not an authorized distributor, dealer, or representative of the products displayed on this website. All product names, trademarks, brands, and logos used on this website are the property of their respective owners. The description, explanation, or sale of products with these names, trademarks, brands, and logos is for identification purposes only and is not intended to indicate any association with or authorization from any rights holder.

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