Description
The Siemens SIWAREX FTA series are precision weighing and force measurement modules designed for seamless integration into the SIMATIC S7-300 and ET 200M automation systems. These modules provide high-resolution data for applications ranging from simple process control to legal-for-trade batching and filling operations. The series includes the main weighing electronics module (7MH4900-2AA01) and complementary components for specific system configurations.
Key Features
- High Precision: 16 million parts internal resolution, suitable for trade applications (OIML R76, R51, R61, R107).
- Full Integration: Snaps directly onto the S7-300/ET 200M backplane bus; uses SIMATIC standard configuration tools.
- Versatile I/O: Integrated digital inputs/outputs, analog output, and serial interfaces (RS232/RS485).
- Robust Communication: PROFIBUS DP and PROFINET support via ET 200M.
- Safety & Certification: Supports Safe Torque Off (STO); ATEX, FM, and cULus Haz.Loc. options available.
Available Models
Model Number | Description | Key Attributes |
|---|---|---|
7MH4900-2AA01 | SIWAREX FTA Weighing Module | Primary module for S7-300/ET 200M. 1x load cell input (1-4mV/V), 7x DI, 8x DQ, 1x AO. |
7MH4965-4AA01 | SIWAREX WT241 Analog Module | Weighing terminal for belt scales (stainless steel enclosure). |
7MH4134-6LB00-0DA0 | ET 200SP High-Speed AI Module | 2-channel strain gauge module for ET 200SP systems (28-bit resolution). |
Technical Specifications (7MH4900-2AA01)
- Measurement Principle: Strain gauge (full bridge).
- Load Cell Interface: 1 channel, 1–4 mV/V excitation.
- Digital I/O: 7 DI (electrically isolated), 8 DQ.
- Analog Output: 1x 0/4–20 mA.
- Communication: SIMATIC S7 backplane bus, RS232, RS485.
- Update Rate: 400 Hz (internal), 100 Hz (external).
- Power Supply: 24 V DC (via separate 2-pin connector).
- Dimensions (W x H x D): 80 mm × 125 mm × 70 mm (approx.).
- Operating Temperature: 0 °C to +60 °C.
- Certifications: CE, UL, RoHS.
Warranty & After-Sales
- Factory new units: 12 months warranty.
- Refurbished units: 3-6 months warranty.
- Technical support for configuration (SIWATOOL FTA, TIA Portal).
- Compatibility verification with existing SIMATIC systems.
- Commissioning and diagnostics support available.
Delivery Time
- Standard delivery: 3-5 working days.
- Express shipping available upon request.
Why Choose Our Store
- Genuine Siemens industrial components.
- Global supply network with competitive pricing.
- Expertise in process automation and weighing systems.
- Comprehensive technical documentation (Manual, Datasheet).
- Responsive customer service.
Applications
- Batching & Dosing: Chemical and food ingredient batching systems.
- Filling Systems: Liquid filling lines and bulk bagging stations.
- Checkweighing: Packaging line checkweighers.
- Process Control: Hopper and tank level monitoring.
- Logistics: Loading bay and crane scales.
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