SIMATIC ET 200SP · SIWAREX WP321
Single-channel weighing module for platform and hopper scales.
Siemens identifies 7MH4138-6AA00-0BA0 as the TM SIWAREX WP321 ST single-channel weighing module for SIMATIC ET 200SP. It is intended for platform or hopper scales using full-bridge analog load cells or strain gauges. The official product description lists one load-cell interface for 1 to 4 mV/V signals, one RS485 interface and suitability for a BU type A0 base unit. Siemens labels the exact product PM300, Active Product. Stockoems offers the item in original new condition, in stock and with a one-year warranty; these are seller commercial statements. Review the base unit, cell wiring, scale parameters and existing ET 200SP configuration before installation.
Commercial note: Condition, availability and warranty are Stockoems commercial information, not manufacturer commitments.
| Manufacturer | Siemens |
|---|---|
| Complete Part Number | 7MH4138-6AA00-0BA0 |
| Manufacturer Order Code | 7MH4138-6AA00-0BA0 |
| Product Type | TM SIWAREX WP321 ST Weighing Module |
| Series | SIMATIC ET 200SP SIWAREX WP321 |
| Weighing Channels | 1 |
| Load-Cell Interface | 1 × LC, 1–4 mV/V full bridge |
| Communication Interface | 1 × RS485 |
| Compatible Base Unit | BU type A0 |
| Official Lifecycle | PM300 — Active Product |
| Net Weight | 0.030 kg |
| Product Condition | Original new |
| Availability | In stock |
| Warranty | With 1 year warranty |
| Country of Origin | GERMANY |
Verify exact 7MH4138-6AA00-0BA0 suffix, BU type A0, load-cell sensitivity and wiring, RS485 connection, parameterization and ET 200SP station configuration. A similarly named SIWAREX module must not be treated as interchangeable.
It is the Siemens TM SIWAREX WP321 ST single-channel ET 200SP weighing module.
Siemens lists this exact order code as PM300: Active Product.
The official description covers full-bridge analog load cells or strain gauges with a 1–4 mV/V interface.
Siemens specifies BU type A0 for this exact module.
Match the complete code, BU, load cell, wiring, RS485 connection and station parameters.
Send us the complete part number, required quantity, destination country and product label photos. Our team will check availability, condition, compatibility requirements and shipping options.
Email: sales6@apterpower.com | WhatsApp: +86 18159889985
Stockoems Service Route
Our service route for Siemens 7MH4138-6AA00-0BA0 links model evidence, technical review, careful handling and responsive after-sales communication.
Model and suffix verification; condition confirmation; product and label photo confirmation. Our team checks the complete nameplate against the requested order code before offering an item.
Technical compatibility review covers the ET 200SP station, BU type A0, load-cell wiring, RS485 link and weighing parameters. Engineering questions are documented before an exchange is approved.
Protective packaging, worldwide shipping, shipment tracking and customs documentation are coordinated for the destination. We avoid unconfirmed delivery promises or invented stock counts.
Written warranty terms, a return authorization process and after-sales response provide a clear path for condition, shipping or documentation questions.
Ask for complete model and suffix verification, clear product and label photos, condition evidence, written warranty terms and a practical after-sales contact.
Compare the complete WP321 ST order code with the installed BU type A0, load cell, RS485 wiring and ET 200SP parameters. Request a documented compatibility review.
Incomplete order codes, generic photos, unsupported specifications, unexplained substitutions, unclear return terms and pressure to skip label or condition checks are warning signs.
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Email: sales6@apterpower.com | WhatsApp: +86 18159889985
