Overview
manual
Weighing Applications
Modernization Option
Features:
- Continuous weighing for belt and flow applications
- 1 to 4 mV/V load-cell interface
- S7-300 and ET 200M integration
Product Overview
7MH4900-3AA01 is a Siemens SIWAREX FTC single-channel weighing module for SIMATIC S7-300 and ET 200M. It supports conveyor belt scales, solids flowmeters and loss-in-weight scales.
The module connects analog load cells or full-bridge strain gauges with a 1 to 4 mV/V signal. It provides 7 digital inputs, 1 counter input, 8 digital outputs and 1 analog output.
Communication and service interfaces include RS485 and RS232. The official manual specifies an 80 x 125 x 130 mm module format and integration into SIMATIC automation systems.
Technical Configuration
- Product Type: SIWAREX FTC weighing module
- System Integration: SIMATIC S7-300 and ET 200M
- Applications: Conveyor belt scales, solids flowmeters, loss-in-weight scales
- Digital Inputs: 7
- Counter Inputs: 1
- Digital Outputs: 8
- Analog Outputs: 1
- Serial Interfaces: 1 x RS485, 1 x RS232
Application Context
It is used with belt scales, solids flowmeters and loss-in-weight scales using analog full-bridge load cells.
It is designed for SIMATIC S7-300 racks and ET 200M stations. Confirm the CPU, interface module, firmware and SIWAREX application package.
The 7MH4900-3AA01 Siemens product is listed as Obsolete/Discontinued by OEM. Moore Automated supports order-code verification, replacement planning and spare-parts supply to help reduce maintenance risk and plant downtime.
Siemens 7MH4900-3AA01 Official PDF and Product Support
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Important Notice: Accessories, software, cables, licenses and calibration records are supplied only when specifically stated in the quotation or stock description.
The module processes analog full-bridge load cells and supports belt loading, solids flow and loss-in-weight control. Select the firmware and application software for the required weighing function.
Application Detail
It is used with belt scales, solids flowmeters and loss-in-weight scales using analog full-bridge load cells.
It is designed for SIMATIC S7-300 racks and ET 200M stations. Confirm the CPU, interface module, firmware and SIWAREX application package.
Key Parameters
- Product Type: SIWAREX FTC weighing module
- System Integration: SIMATIC S7-300 and ET 200M
- Applications: Conveyor belt scales, solids flowmeters, loss-in-weight scales
- Digital Inputs: 7
- Counter Inputs: 1
For new conveyor belt and solids-flow projects, compare the ET 200SP SIWAREX WP341 7MH4138-6CA00-0CU0. Existing FTC loss-in-weight logic and I/O must be reviewed before migration.
Installation and Replacement Guidance
Verify the load-cell signal range, shield grounding, S7/ET 200M slot, 24 V supply and configured I/O addresses before commissioning.
SIWAREX FTC integrates continuous weighing into S7-300 or ET 200M with a 1 to 4 mV/V load-cell input, discrete I/O, analog output and RS485/RS232 communication. For new belt-scale and solids-flow designs, Siemens offers the ET 200SP SIWAREX WP341 7MH4138-6CA00-0CU0.
Before commissioning, verify the complete order number 7MH4900-3AA01, physical interface, engineering software or firmware requirements, and the configuration of the existing Siemens system.
