Industrial Serial to WiFi Server & Modbus Gateway

This Industrial Serial to WiFi Server is metal housed and designed for rugged industrial environment with simultaneous wireless and Ethernet dual-access.

Part No. VT-WF100
sku : IoT-W100
INSTANT QUOTE

Dual-Access Industrial Serial to WiFi Server

Break free from cabling constraints. The VT-WF100 provides bi-directional transparent data transmission, uniquely supporting simultaneous Ethernet and WiFi access to guarantee uninterrupted telemetry between your legacy devices and modern IT networks.

Industrial Serial to WiFi Server main features overview
Bi-directional transparent data transmission via WiFi and Ethernet

Industrial Power & Embedded Modbus Gateway

Wide voltage input (9~24V DC) for tough environments. The built-in storage type Modbus gateway seamlessly converts Modbus RTU serial data into Modbus TCP payloads for advanced SCADA integration.

Industrial Power Supply and Support Modbus Gateway structure

3-in-1 Versatile Serial Interfaces

Adapt to any field equipment instantly. The onboard RS232, RS485, and RS422 interfaces offer ultimate flexibility, routing diverse serial signals reliably to the Ethernet port or wireless network.

Onboard RS232 485 422 interfaces to Ethernet and WiFi
RS232 RS485 to Ethernet Port and WiFi routing logic

Multi-Host Polling & Communication Modes

Configure the server as a TCP Client, TCP Server, UDP, or UDP Multicast. The integrated bus arbitration allows multiple host computers to poll the same serial device concurrently without causing RS485 data collision.

Support multiple communications TCP UDP modes
Support multi-master Modbus TCP polling without collision

Flexible Wireless Networking: AP & STA Modes

Weeks to seconds. Connect the device to your existing factory Wi-Fi router using STA Mode, or change to AP Mode to operate as a standalone hotspot allowing engineers to connect laptops or cell phones directly for local diagnostics.

AP mode configuration for direct mobile access
STA mode connecting to wireless router

Remote Cloud Management

Manage distributed assets effortlessly. The gateway supports cloud-based parameter configuration, OTA firmware upgrades, and secure edge computing features.

Remote management of cloud devices

Rugged Protection for Harsh Environments

Encased in a high-intensity, anti-radiation SECC metal chassis. The RS485 port features embedded lightning and surge protection, ensuring robust outdoor reliability and automatic re-connection after temporary disconnections.

RS485 lightning protection and electromagnetic interference resistance

Hardware Details & Outline Dimensions

VT-WF100 product show and interfaces
Physical CAD outline dimensions

Product modelVT-WF100VT-WF110
OUTLINE
Product TypeIndustrial rail-mount/wall-mount module with metal caseIndustrial rail-mount module with plastic case
InterfaceRS232 port x 1, RS485 port x 1, RS422 port x 1, Ethernet port x 1RS485 port x 1, Ethernet port x 1
Power supply485/422: 9 ~ 24V DC screw terminal, 232: 9 ~ 24V DC DB99 ~ 24V DC screw terminal
Dimensions94mm × 65mm × 25mm37.6mm × 83.6mm × 89.2mm
Communication & Wireless
Ethernet & WiFi10/100M auto-negotiation RJ45 | 802.11 b/g (STA/AP)
SecurityWEP/WPA-PSK/WPA2-PSK (WEP64/WEP128/TKIP/AES)
Baud rate1200 ~ 115200 bps
Operating Temp.-40 ~ 85°C
Simultaneous Ethernet & WiFi Dual-Access

The VT-WF100 is unlike a conventional single mode converter in that it enables the simultaneous operation of both the 10/100M Ethernet port and 802.11 b/g wireless interface. This redundancy provides for continuous data flow and highly flexible SCADA network topologies.

Versatile AP & STA Wireless Networking

Deploy in seconds with no complicated IT setup. Set the device to STA Mode to connect easily to your existing wireless routers at your facility. Or switch to AP Mode for a fully standalone WiFi hotspot that allows maintenance engineers to connect their laptops or smartphones directly to the PLC for on-site diagnostics without requiring an external network.

Rugged Industrial Isolation & Protection

Built for the harshest environments. Housed in a heavy-duty, anti-radiation SECC metal enclosure, the unit features embedded lightning protection on the RS485 lines. The ultimate reliability is guaranteed with 9~24V DC wide-voltage input and “Sticky Package Optimization” (1ms~100ms precision) for zero packet loss.

Related Product: Need DIN-rail mounting for your inverter cabinet and seamless high-frequency polling from multiple SCADA hosts? Discover the VT-WF110, equipped with built-in Modbus caching and advanced anti-collision features.

Technical FAQ & Troubleshooting

Can the WiFi and Ethernet ports be used at the same time?
Yeah. One of the main benefits of the VT-WF100 is the ability to provide simultaneous Ethernet and WiFi access. This enables the creation of highly fault-tolerant dual-homed topologies where data can be passed between your serial devices and multiple network media concurrently.
What is the difference between AP Mode and STA Mode for my application?
In STA Mode (Station), the VT-WF100 acts like a wireless client, actively connecting to your factory’s existing WiFi router to upload data to the central SCADA system. In AP Mode (Access Point), the VT-WF100 acts as its own hotspot. This is very useful for maintenance engineers who need to connect their laptop or smartphone directly to the serial gateway to configure and diagnose locally without needing external network infrastructure.
How do I wire the RS232 and RS485 connections physically?
The device has a standard DB9 male connector for RS232 full duplex communication. It has a green terminal block dedicated to RS485 (and RS422) networks with embedded lightning protection, ideal for rugged industrial and outdoor telemetry.
Ready to deploy? Order direct from our Official Store.
Global delivery and comprehensive technical support included.

🛒 Buy Online Now

REQUEST A QUOTE

SKU/Part No.