---
title: "Accessing WI"
url: "https://maker.wiznet.io/forum/15880"
markdown_url: "https://maker.wiznet.io/forum/15880/md"
type: "Forum topic"
category: "IO Modules"
author: "wnguyen"
created: "2025-09-17T06:21:37+09:00"
last_activity: "2025-09-17T08:40:28+09:00"
language: "en"
tags: ["C/C++"]
views: 4
replies: 1
source: "WIZnet Makers forum (https://maker.wiznet.io/forum/)"
---

# Accessing WI

## Question

Asked by wnguyen on 2025-09-17 in IO Modules.

Hi, I'm seeking help to answer a few questions:

1. According to your datasheet, I access WIZ750SR-485 to send RS485 commands to control an IP device without a need to use the Config Tool. Is that true?

2. I want to use this RS485 to Ethernet adapter to control an IP camera to control its zoom and focus features. Is it possible to access the camera's internal webserver that way?

3. Is this adapter able to create virtual comm port just by connecting to this adapter?

## Replies

### Reply 1 by TheoIm, 2025-09-17

Hi, here is the answer about your questions.

**TCP Client/Server Capability**
If the WIZ750SR’s TCP client or server functions are used to connect with an IP device, communication and device control are fully possible. This is, in fact, the primary purpose of the module.

**Role of WIZ750SR-485**
The WIZ750SR-485 is a Serial-to-Ethernet (S2E) converter. For HTTP communication, it would need to generate HTTP request messages (GET/POST, headers, cookies, etc.) internally, but it does not provide such functionality.

**Virtual Serial Port Support**
The WIZ750SR itself cannot directly create a virtual serial port. However, by installing the **WIZVSP (WIZnet Virtual Serial Port)** utility provided by WIZnet, you can create a virtual COM port on Windows that connects to the WIZ750SR module.

Thanks

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Source: https://maker.wiznet.io/forum/15880