SIWAREX WP231 Weighing Module 7MH4960-2AA01

Overview

7MH4960-2AA01 is a SIWAREX WP231 weighing module, specially designed for SIMATIC S7-1200 PLC. It is equipped with RS485 and Ethernet interfaces for communication. It supports Modbus TCP/IP and Modbus RTU protocols and can be connected to the operation panel or remote display. It also comes with 4 channels of DI, 4 channels of DO and 1 channel of 0/4-20mA. AO meets the needs of multiple types of peripheral access and signal output. It can also be run independently to meet the high-precision weighing needs of multiple industrial scenarios.

FAQ:

1.What are the rated supply voltage range, maximum power consumption and operating/storage temperature limits of the 7MH4960-2AA01 module?

1. Power supply: 24V DC (compatible with 9-36V DC redundant input)
2. Maximum power consumption: about 4.8W (24V×0.2A)
3. Temperature limit: working – 10~70℃ (wide temperature version – 40~85℃), storage – 40~80℃

2.Is the range of 7MH4960-2AA01 weighing measurement adjustable? What are the minimum measurable weight and maximum overload capacity?

1. Adjustable range: depends on the sensor range, matched through software calibration
2. Minimum measurable weight: no fixed value, determined by sensor range + module resolution (up to ±1e-6)
3. Maximum overload capability: dependent on sensor (normal operating load 150% rating), module signal allowable range ±21.3mV

3.When the measurement data of 7MH4960-2AA01 drifts, what are the possible reasons?

7MH4960-2AA01 (SIWAREX WP231 weighing module) measurement data drift is mostly related to the module itself, supporting sensors, signal transmission, environment and software configuration:

1. Module: aging components, uncalibrated/incorrect calibration, power supply fluctuations
2. Sensor: diaphragm deformed, loose due to moisture, not recalibrated
3. Transmission: loose wiring/oxidation, cable aging, shielding/poor grounding
4. Environment: excessive temperature and humidity, electromagnetic interference
5. Configuration: Improper filtering parameters, incompatible software versions

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