Product Name: SIMATIC ET 200SP TM SIWAREX WP321 ST Weighing Module
Brand Name: Siemens
Model Number: 7MH4138-6AA00-0BA0
Place of Origin: Germany
Warranty: 12 Months
Whatsapp：+86 18020776782
Email：[email protected]
| Sales | Phone/Whatsapp | |
| Jim Pei | [email protected] | +86 18020776782 |
| Manufacturer | Siemens |
| Product Family | SIMATIC ET 200SP / SIWAREX |
| Part Number | 7MH4138-6AA00-0BA0 |
| Number of Weighing Channels | 1 |
| Load Cell Interface | 1 × LC Interface, 1–4 mV/V |
| Communication Interface | 1 × RS485 |
| Hardware Functional Status | FS04 |
| Firmware Version | V1.4.3 |
| Engineering Software | STEP 7 TIA Portal V14 or Higher; STEP 7 V5.4 or Higher |
| PROFIBUS GSD Revision | GSD Revision 5 |
| PROFINET GSD Revision | GSDML V2.34 |
| Rated Supply Voltage | 24 VDC |
| Permissible Voltage Range | 19.2–28.8 VDC |
| Short-Circuit Protection | Yes |
| Reverse Polarity Protection | Yes |
| Maximum Current Consumption | 100 mA |
| Load Cell Supply Voltage | 4.85 VDC |
| Typical Power Loss | 2 W |
| Backplane Bus Power Consumption | 70 mW |
| Input Address Space | 16 Bytes |
| Output Address Space | 16 Bytes |
| Supported Load Cells | Full-Bridge Strain Gauges, 4-Wire / 6-Wire Connection |
| Full-Bridge Resistance | 40–4,100 Ω |
| Linearity Error | ±0.01% of Input Range |
| Error Limit | 0.05% of Full-Scale Value (DIN 1319-1) |
| RS485 Maximum Transfer Rate | 115.2 kbit/s |
| RS485 Maximum Cable Length | 1,000 m at ≤115 kbit/s, Shielded Cable |
| Diagnostics | Supply Voltage Monitoring, Wire-Break, Short-Circuit, Group Error |
| Load Cell Sampling Rate | 600 Hz |
| Input Signal Resolution | ±500,000 Parts per mV/V |
| Measuring Range 1 | -1 to +1 mV/V, ±500,000 Parts |
| Measuring Range 2 | -2 to +2 mV/V, ±1,000,000 Parts |
| Measuring Range 3 | -4 to +4 mV/V, ±2,000,000 Parts |
| Maximum Load Cell Cable Length | 500 m with SIWAREX 7MH4702-8AG Cable |
| Operating Temperature – Horizontal | -25 to +60°C |
| Operating Temperature – Vertical | -25 to +50°C |
| Certifications / Approvals | CE, UKCA, UL, EAC, KC, FM, ATEX, IECEx |
| Minimum Order Quantity | 1 Piece |
| Price | Contact for Jim |
| Packaging Details | Original new Factory Sealed |
| Delivery Time | 3–7 Days |
| Payment Terms | T/T |
| Shipping Method | DHL / FedEx / UPS / TNT |
| Supply Ability | In stock |
The Siemens 7MH4138-6AA00-0BA0 is a SIWAREX weighing module designed for SIMATIC ET 200SP automation systems, providing precise acquisition and processing of signals from strain-gauge load cells. It supports high-resolution weight measurement, RS485 communication, comprehensive diagnostics, and integration with PROFINET and PROFIBUS automation architectures. The 7MH4138-6AA00-0BA0 is well suited for industrial weighing, filling, dosing, batching, level-by-weight measurement, conveyor scales, and process automation applications.
The Siemens 7MH4138-6AA00-0BA0 is used in platform scales, hopper scales, tank weighing, filling systems, batching equipment, conveyor weighing, and machine-integrated weight monitoring. Its ET 200SP format suits decentralized control cabinets and compact automation stations.
For new installation or replacement, 7MH4138-6AA00-0BA0 should be applied after the load-cell bridge type, rated load, sensitivity, excitation, shielded cable, BaseUnit, calibration data, and TIA Portal configuration are verified. It supports maintenance and modernization of SIMATIC industrial weighing applications.
Years of Global Experience: With over 10 years of experience in the industrial automation industry, we serve customers worldwide and have built long-term business relationships with clients across many countries and regions, including the United Kingdom, Russia, the United Arab Emirates, India, Venezuela, and more.
Professional Support Team: Our experienced team provides helpful pre-sales consultation and reliable after-sales support, helping customers select suitable products and solve purchasing concerns.
Wide Range of Brands: We supply products from many leading automation brands, covering PLCs, DCS, I/O modules, drives, motors, power supplies, communication modules, and more.
Large In-Stock Inventory: A wide selection of automation components is available from stock, including discontinued, obsolete, and hard-to-find parts, helping customers reduce sourcing time.
Honesty & Trust: We believe long-term cooperation begins with sincerity. We treat every customer with honesty, respect, responsibility, and genuine care.
Your Trusted Automation Partner: Whether you need a single replacement part, discontinued components, or products for a complete automation project, we are ready to support your needs and build a long-term partnership.
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☑ Most products have a warranty period of up to one year, and any quality issues will be refunded at our expense. Each item undergoes rigorous testing before delivery.
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