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.
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.
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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.
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.
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.
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.
Siemens lists 7MH4900-3AA01 as PM410 Product Cancellation. For belt-scale and solids-flow applications, current SIWAREX WP341 7MH4138-6CA00-0CU0 is the closest Siemens migration platform; Moore Automated supplies quality Siemens weighing modules and spares to reduce conversion downtime.
Moore Automated supports customers with order-code verification, condition confirmation and sourcing of Siemens replacement modules or compatible spare parts for this exact configuration.
For discontinued products, the documented successor or migration path should be checked against the installed hardware, software and field wiring before replacement. This supply and verification approach helps shorten maintenance decisions and reduce unplanned downtime.
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