W-M1B501

16 Channels Digital Input / Output Module

Features

Support Dry / Wet contact
Input Resistance 10KΩ
Normal Output Current 500mA per Channel
Communication Protocol: Modbus RTU

Introduction

W-M1B501, 16-channel digital input and output, it includes the features of photo couple isolation and source type output with short circuit protection. W-M1B501 can be rugged enough in a difficult environment, but it still retains the feature of friendly configuration.

Specification

Digital Input

Input Impedance	10 KΩ
Over-Voltage Protection	70 VDC
Frequency Range	100 Hz (16 bit)
Dry Contact	Logic Level 0 : Open Logic Level 1: Close to GND
Wet Contact	Logic Level 0 : +3 V (Max.) Logic Level 1 : 10 to 50V

Digital Output

Output Type	NPN
Output Voltage Range	3.5 ~ 30 VDC
Frequency Range	100 Hz (16 bit)
Normal Output Current	500mA per Channel
Operate / Release Time	10 ms Max. / 5 ms Max.
Electrical Endurance	100000 ops. @ 5A resistive load

General

Interface	RS-485
Power Consumption	4.8W @ 24 VDC
Power Requirement	10 ~ 60 VDC
Watchdog Timer	System (1.6 Second Fixed)
Intra-Module Isolation, Field-to-Logic	2500 VDC

Communication

Protocol	Modbus RTU
Speed	From 1200 ~ 115.2k bps
Distance	1.2 km at 9.6 kbps

Environmental

Operating Temp.	-25 ~ 70 ºC
Storage Temp.	-30 ~ 75°C
Operating Humidity	10% to 90% (non-condensing)

Dimension

LED Indicators	PWR, Comm, Program, Status
Weight	65g (Average)
Dimensions	472 x 121 x 120mm

Ordering Information

W-M1B501	16 Channels Digital Input and 16 Channels Digital Output Modules

Download

Description	Size	Type	Version	Date	Download
Description W-M1B501 Datasheet	Size -	Type pdf	Version	Date 2024-07-17	Download Download
Description RS-485 I/O Module Tool	Size -	Type zip	Version V0.192	Date 2025-08-15	Download Download

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