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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
- Modbus RTU PWM Signal Acquisition: RS485 Modbus RTU PWM input module for industrial monitoringreads 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 736V 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.
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Overview This Industrial RS485 Modbus RTU 8CH PWM Input Module is a compact 8-channel PWM pulse acquisition device for automation and monitoring systems. It connects to a wired RS485 bus and uses the Modbus RTU protocol, enabling a PLC, industrial PC, or control gateway to read PWM parameters remotely and reliably. The module supports 8-channel PWM input, providing pulse frequency measurement and duty cycle acquisition for each channel. High-speed optocoupler isolation is used on the PWM inputs to improve safety and reduce interference, helping ensure stable sampling when deployed in control cabinets or near switching loads.
Power input is flexible with a wide 736V DC range via the onboard voltage regulator. The design integrates unibody power supply isolation and magnetical isolation to enhance signal integrity and improve system reliability, without requiring an additional isolated power source for the isolated terminal. To handle harsh field conditions, the module includes multiple protection circuits: a resettable fuse and TVS (Transient Voltage Suppressor) to suppress surge voltage and transient spikes, plus an onboard watchdog to maintain stable operation. The DIN rail mount case supports stacking combinations for neat installation, while 3 LEDs provide clear indication of MCU status and RS485 communication activity. Package include 1. Modbus RTU PWM Input 8CH x1 2. Power supply terminal adapter x1 3. Screwdriver x1
Power input is flexible with a wide 736V DC range via the onboard voltage regulator. The design integrates unibody power supply isolation and magnetical isolation to enhance signal integrity and improve system reliability, without requiring an additional isolated power source for the isolated terminal. To handle harsh field conditions, the module includes multiple protection circuits: a resettable fuse and TVS (Transient Voltage Suppressor) to suppress surge voltage and transient spikes, plus an onboard watchdog to maintain stable operation. The DIN rail mount case supports stacking combinations for neat installation, while 3 LEDs provide clear indication of MCU status and RS485 communication activity. Package include 1. Modbus RTU PWM Input 8CH x1 2. Power supply terminal adapter x1 3. Screwdriver x1
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Warranty, Returns, And Additional Information
Warranty
- Please contact the Seller directly for warranty information. Warranty information may also be found on the Manufacturer's website.
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Return Policies
- Return for refund within: 30 days
- Return for replacement within: 30 days
- This item is covered by GearZap Return Policy
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