Industrial 4-ch PWM RS485 pulse output module Modbus RTU rail

Industrial 4-ch PWM RS485 pulse output module Modbus RTU rail

$23.9

Brand：SpotPear

SKU：020310400000

Date：2026-03-07 11:39

Part Number：

Modbus RTU PWM Output 4CH

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Industrial 4-Ch PWM Output Module, Modbus RTU Protocol, Isolated RS485 Interface, Adjustable Frequency and Duty Cycle, With Various Isolation And Protection Circuits

Industrial 4-Ch PWM Output Module

Modbus RTU Protocol RS485 Interface DC 7~36V Wide Voltage

Adjustable Frequency And Duty Cycle Multiple Isolation Protection Circuits

Features At A Glance

The Modbus RTU PWM Output 4CH is an isolated RS485 to PWM output module, supports 4-ch PWM outputs with adjustable frequency and duty cycle. Adopts Modbus RTU protocol with built-in protection circuits such as power isolation, magnetical isolation, resettable fuse, and TVS.

The outputs use high-speed optocoupler isolation, and the output high-level voltage can be switched via an internal jumper
4-ch PWM outputs, with independently adjustable frequency and duty cycle
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, compact size, easy to install
3x LEDs for indicating the power status and signal transceiving status

Specifications

COMMUNICATION INTERFACE	RS485
BAUD RATE	4800, 9600, 19200, 38400, 57600, 115200, 128000, 256000
DEFAULT COMMUNICATION FORMAT	9600, N, 8, 1
MODBUS PROTOCOL	Standard Modbus RTU protocol
POWER SUPPLY	DC 7~36V
OUTPUT VOLTAGE	3.3V by default, configurable to 5V via internal jumper
OUTPUT CURRENT	Signal level, < 30mA
PULSE FREQUENCY	1Hz ~ 200KHz
FREQUENCY RESOLUTION	0.01Hz
FREQUENCY ACCURACY	5‰
DUTY CYCLE	0 ~ 100%
DUTY CYCLE RESOLUTION	0.01%
DUTY CYCLE ACCURACY	5‰ (1Hz ~ 50kHz), 1% (50kHz ~ 200kHz)

Primary Function

Supports Sending Modbus RTU Protocol Commands Via RS485
And Outputting PWM Signal

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.

Wide Voltage Power Supply, Isolated RS485 Interface

Built-In Fuse And Anti-Reverse Protection, With Power And Signal Dual Isolation

Interface Introduction

Connection Diagram

Wall-Mount And Rail-Mount Support

Dimensions

[] Modbus RTU PWM Output 4CH

To：

Dear Customers, There may be a lag of several hours before we could process your order, depending on the time difference between your location and ours. Sincerely hoping your understanding!