Industrial RS485 Modbus RTU 8CH PWM Input Module, 8-Channel Pulse Frequency & Duty Cycle Reader, Optocoupler Isolated Inputs, 7-36V DC Power, DIN Rail Mount Case, TVS/Fuse Protection, Status LEDs

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Highlights

• ◎ Modbus RTU PWM Signal Acquisition: RS485 Modbus RTU PWM input module for industrial monitoring—reads 8-channel PWM pulse signals and reports frequency & duty cycle via Modbus registers.
• ▣ 8CH High-Frequency PWM Pulse Detection: Supports PWM frequency measurement and PWM duty cycle acquisition on 8 inputs, designed for high-speed pulse capture in automation systems.
• ⎔ Optocoupler Isolation + Strong Anti-Interference: High-speed optocoupler isolated inputs improve noise immunity; combined with isolated RS485 interface for reliable data collection in electrically noisy environments.
• ⚡ Wide 7–36V DC Supply + Integrated Isolation: Onboard regulator supports 7-36V DC power input; unibody isolated power design provides stable isolated voltage without an extra isolated supply for the isolated terminal.
• 🛡 Protection Circuits + Watchdog + DIN Rail: Built-in resettable fuse and TVS transient suppression for surge/spike protection, plus watchdog for stable operation; compact DIN rail mount housing supports stacking and includes 3 status LEDs.