Features:
- Two independent weighing channels for two scales
- Analog interfaces for full-bridge load cells or strain gauges
- RS232 serial connection for the documented weighing arrangement
The Siemens 7MH4950-2AA01 order number identifies the SIWAREX U2 module variant with two measurement channels in one module.
On Siemens 7MH4950-2AA01, the specified analog input signal range is 1 to 4 mV/V per channel.
Rather than sharing the sensor paths, Siemens 7MH4950-2AA01 uses its RS232 connector independently of the two analog measurement connections.
The Siemens 7MH4950-2AA01 SIWAREX U2 Two-Channel Weighing Module may still be available for purchase and support from Apter Power beyond End-Of-Life (EOL) by the manufacturer (OEM).
Siemens 7MH4950-2AA01 SIWAREX U2 Two-Channel Weighing Module Manuals,Datasheets,Link
Important Notice: Other accessories, manuals, cables, calibration data, software, etc. are not included with this equipment unless listed in the above stock item description. All prices are shown in USD.
Two-scale architecture
- Channel count: Two weighing channels serve two platform or hopper scales.
- Sensor type: Each channel accepts analog full-bridge load cells or strain gauges.
- Station role: The module adds weighing functions within SIMATIC S7-300 or ET 200M hardware.
Measurement inputs
- LC interfaces: Two LC interfaces provide one measurement connection for each scale.
- Bridge signals: The interfaces are specified for 1 to 4 mV/V load-cell or strain-gauge bridges.
- Signal grouping: Separate channel paths keep the two scale inputs individually assigned.
Service connection
- Port: One RS232 interface is included on the SIWAREX U2 module.
- Role: The serial path is distinct from the two analog load-cell interfaces.
- Planning: Confirm the required serial connection while defining the two-scale configuration.
Station placement
- S7-300: SIWAREX U2 is specified for SIMATIC S7-300 installations.
- ET 200M: The same module is specified for ET 200M distributed I/O stations.
- Scale count: The two-channel design should be aligned with two connected weighing points.