SIEMENS SIMATIC ET 200SP, TM SIWAREX WP351 HF Bangladesh. Mlfb-7MH4138-6BA00-0CU0 price

The Siemens 7MH4138-6BA00-0CU0 is the TM SIWAREX WP351 HF, a compact high-performance weighing technology module for the SIMATIC ET 200SP system. It is designed for automatic weighing applications including dosing, filling, checking and totalizing scales, while also supporting non-automatic weighing applications. The module provides a single load-cell interface for analog strain gauges/full-bridge load cells and includes three digital inputs and three digital outputs. Communication interfaces include RS-485 and 10/100 Mbit/s Ethernet. The module supports a 24 V DC supply with a permissible 19.2–28.8 V range and is designed for use with ET 200SP Base Unit type U0. Siemens documentation specifies STEP 7/TIA Portal engineering from V15.1 and PROFINET GSDML V2.34. Its 20 mm module width makes it suitable where compact ET 200SP installation is important.

2. Technical Specification

Specification	Details
Manufacturer	Siemens
Product Code	7MH4138-6BA00-0CU0
Product Family	TM SIWAREX WP351 HF weighing electronics
Product Type	SIMATIC ET 200SP weighing technology module
Supply Voltage	24 V DC; 19.2–28.8 V
Digital Inputs	3
Digital Outputs	3, current-sourcing
Load Cell Interface	1; full-bridge strain gauges, 1–4 mV/V
RS-485	Yes; up to 115.2 kbit/s
Ethernet	1 × RJ45, 10/100 Mbit/s
Dimensions	20 × 57 × 72 mm
Weight	Approx. 50 g
Base Unit	BU type U0
Operating Temperature	-30 to +60 °C horizontal; -30 to +50 °C vertical
Protection/Diagnostics	Diagnostic alarm, supply monitoring, wire-break, short-circuit and group-error diagnostics

3. Key Features

• Single-channel SIWAREX WP351 HF weighing electronics.
• Supports automatic and non-automatic weighing applications.
• 3 parameterizable digital inputs.
• 3 parameterizable current-sourcing digital outputs.
• Integrated RS-485 interface up to 115.2 kbit/s.
• Integrated 10/100 Mbit/s Ethernet interface.
• Supports 4-conductor and 6-conductor full-bridge strain gauges.
• Sampling rate up to 1,024 Hz.
• Load-cell measuring ranges include ±1, ±2 and ±4 mV/V.
• Diagnostic monitoring includes supply voltage, wire-break, short-circuit and group errors.
• Designed for ET 200SP with BU type U0.

4. Typical Application

• Automatic dosing and filling scales.
• Check weighing systems.
• Totalizing weighing applications.
• Platform and industrial weighing equipment.
• SIMATIC ET 200SP weighing stations.
• Machine and process weighing applications requiring integrated automation communication.

5. Product Highlights

The 7MH4138-6BA00-0CU0 combines weighing functionality with SIMATIC ET 200SP integration in a 20 mm-wide module. Its combination of load-cell measurement, digital I/O, RS-485 and Ethernet provides a practical interface for automated weighing systems. The module supports diagnostic functions and can communicate with SIMATIC S7-300, S7-400, S7-1200 and S7-1500 environments as well as standard PROFINET controllers.

6. Important Ordering & Installation Information

The exact order number is 7MH4138-6BA00-0CU0. The module uses ET 200SP Base Unit type U0. A 24 V DC supply within the specified 19.2–28.8 V range is required. Load-cell wiring must comply with the specified full-bridge connection and cable requirements. TIA Portal/STEP 7 engineering compatibility should be checked against the installed system version; Siemens specifies STEP 7/TIA Portal V15.1 or higher for this module.

Always follow the manufacturer's official installation, wiring, commissioning and safety instructions.

7. Why Choose Siemens 7MH4138-6BA00-0CU0 SIWAREX WP351 HF Weighing Module?

The Siemens TM SIWAREX WP351 HF is suitable when weighing functionality needs to be integrated directly into a SIMATIC ET 200SP automation architecture. Its 1,024 Hz sampling rate, full-bridge load-cell support, Ethernet and RS-485 interfaces, digital I/O and diagnostic capabilities provide the technical functions required for automated weighing and process-control applications.

8. Product Summary

The Siemens 7MH4138-6BA00-0CU0 TM SIWAREX WP351 HF is a SIMATIC ET 200SP weighing technology module for automated dosing, filling, checking and totalizing applications. It provides one load-cell interface for full-bridge strain gauges, three digital inputs, three digital outputs, RS-485 communication and 10/100 Mbit/s Ethernet. The module operates from 24 V DC and accepts 19.2–28.8 V DC. Its 20 mm width supports compact ET 200SP installations, while integrated diagnostic functions assist system monitoring. It uses Base Unit type U0 and can be engineered with Siemens automation environments according to the documented software requirements.

Product Code: 7MH4138-6BA00-0CU0
Manufacturer: Siemens
Product Family: TM SIWAREX WP351 HF weighing electronics
Product Type: SIMATIC ET 200SP weighing technology module