I. Product Overview
7MH4910-0AA01 is a weighing module of SIWAREX CS series under Siemens, specially designed for SIMATIC ET200S distributed I/O system. It is mainly used to connect weighing sensors and realize high-precision weight measurement, supporting seamless compatibility with Siemens PLC systems. It has intelligent functions such as automatic calibration and temperature compensation, adapting to various industrial weighing scenarios with high reliability and convenient debugging.
II. Complete Parameter Table
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Parameter Category
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Parameter Details
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Basic Information
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Brand: Siemens; Model: 7MH4910-0AA01; Product Type: SIWAREX CS Weighing Module; Purpose: Industrial Weighing and Force Measurement
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Measurement Accuracy
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Accuracy Class: 0.05%; Nonlinear Error: ≤0.01% FS (Full Scale); Resolution: 65,535; Division Value: 3000 d
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Measurement Performance
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Measurement Speed: 50 Hz; Sampling Rate: 100 times/second; Maximum Input Signal: ±32 mV; Temperature Drift: Zero Point ≤5 ppm/°C, Range ≤8 ppm/°C
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Sensor Adaptation
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Sensor Type: 4-wire or 6-wire strain gauge weighing sensor; Sensitivity: 1-4 mV/V (compatible with 2 mV/V); Compatible Impedance: 350 Ω±20%; Input Channel: 1 differential analog input channel, can connect 1-4 parallel sensors (total impedance ≥87.5 Ω); Maximum Sensor Distance: 1000 m
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Electrical Characteristics
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Excitation Voltage: 6-10 VDC; Power Supply: Powered by S7-1200/ET200S backplane bus (5 V DC, maximum current 120 mA), no external power supply required; Isolation Performance: Photoelectric isolation between input and backplane bus, isolation voltage ≥2.5 kV AC (1 minute); Maximum Allowed Load: 87Ω < Rl < 4010 Ω
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Communication Interface
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Communication Protocol: Supports S7, RS232/TTY interfaces; Indirect PROFINET communication can be realized through PLC forwarding; Data transmission response time ≤10 ms; RS232 interface for connecting PC, TTY interface for remote display
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Environmental Adaptability
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Operating Temperature: -10~60 °C (operation), -25~70 °C (storage); Relative Humidity: 5%~95% RH (no condensation); Protection Class: IP20 (panel protection); Vibration Resistance: Complies with IEC 61131-2 standard (10~58 Hz, 0.15 mm amplitude; 58~150 Hz, 10 m/s² acceleration); Shock Resistance: 15 g acceleration, 11 ms duration
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Functional Characteristics
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Supports automatic zero setting, range setting, and tare function; Equipped with 2 limit alarms (maximum/minimum); Built-in digital filtering algorithm, supports dynamic compensation; Complies with legal trade 2000D standard; Adapts to SIMATIC ET200S-HEAD STATION IM151-1 Basic/Standard/High Performance and IM151-7 CPU
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Certification & Standard
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Can be used in explosive hazardous areas with SIWAREX IS explosion-proof interface; Complies with industrial safety and quality standards, adapting to the needs of industrial automation system integration
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