Description
Industrial 8-Ch PWM Input Module, Modbus RTU Protocol, Isolated RS485 Interface, Supports Frequency And Duty Cycle Acquisition, With Various Isolation And Protection CircuitsIndustrial 8-Ch PWM Input module

Modbus RTU Protocol

RS485 Interface

DC 7~36V Wide Voltage

Frequency And Duty Cycle Acquisition

Multiple Isolation Protection Circuits

Features at a glance

TheModbus RTU PWM Input 8CHis an isolated RS485 to 8-Ch PWM PWM input module, supports PWM pulse frequency and duty cycle detection. Adopts Modbus RTU protocol with built-in protection circuits such as power isolation, magnetical isolation, resettable fuse, and TVS.

• The inputs use high-speed optocoupler isolation and support high-frequency detection
• Configurable device address (1~255), multi devices can be cascaded on RS485 bus
• Onboard voltage regulator, supports 7~36V wide range power supply
• Onboard unibody power supply isolation, provides stable isolated voltage, needs no extra power supply for the isolated terminal
• Onboard unibody magnetical isolation, allows signal isolation, high reliability, strong anti-interference
• Onboard resettable fuse and TVS (Transient Voltage Suppressor), effectively suppresses surge voltage and transient spike voltage in the circuit, provides over-current/over-voltage proof, lightningproof & anti-electrostatic
• Onboard watchdog, for stable output without crashing
• Rail-mount case design, support stacking combination, easy to install and safer to use
• 3x LEDs for indicating the MCU status and signal transceiving interfaceRS485Baud rate4800, 9600, 19200, 38400, 57600, 115200, 128000, 256000Default communication format9600, N, 8, 1Modbus protocolStandard Modbus RTU protocolPower supplyDC 7~36VPulse Input Voltage3.3V ~ 30VFrequency Detection Range400Hz ~ 50kHzFrequency Resolution0.01HzFrequency Accuracy5‰Duty Cycle Detection Range0 ~ 100%Duty Cycle Resolution0.01%Duty Cycle Accuracy5‰
  Primary function

  Supports sending Modbus RTU protocol commands via RS485 to acquire PWM pulse signals

  Industrial Grade Isolated Protection

  Onboard power and signal dual isolation for RS485 communication, provides stable isolation voltage, features high reliability and strong anti-interference performance. Built-in TVS (transient voltage suppression tube) can effectively suppress the surge voltage and transient peak voltage in the circuit, lightningproof & ESD protection. Built-in resettable fuse and protection diode to ensure stable current and voltage output, provides over-current and over-voltage proof, improves shock-proof performance, suitable for industrial environments with high requirements.

  Interface introductionWide voltage power supply, isolated RS485 interface

  Built-in fuse and anti-reverse protection, With Power and Signal Dual Isolation

  Rail-Mount Support

  Supports 35mm standard guide rail, with rail-mount buckle, easy to install.

  Supports stacking installation
  Product show
  
  DimensionsResources & Services
  Package Content
  

  Weight:0.095 kg

  1. Modbus RTU PWM Input 8CH x1
  2. Power supply terminal adapter x1
  3. Screwdriver x1