How to access multiple distributed RS-485 devices deployed in Serial-to-Serial mode? Users can use a few PDS-700 modules to create pair-connection application to access, control and manage the distributed RS-485 devices via TCP/IP communication.
 

Introduction

PDS-700 series module is a Programmable Device Server that is able to convert serial communication to Ethernet communication so that it allows to adding Internet connectivity to any RS-232 or RS-422/485 devices. By using the VxComm Utility, the built-in COM port of the PDS-700 can be virtualized as a standard PC COM port. With its independent operating system, protocol, compact size and high compatibility, it doesn’t need extra software to implement various network applications.

Nowadays, Ethernet protocol has become a standard protocol for local area network. By using PDS-700 via Ethernet, it is easy to implement applications in office automation, home automation, factory automation and disaster prevention. In addition, it also enables devices to access and share information between each other even the devices are from different vendors. And when VirtualCOM is not available in the local site, the communication still can be achieved by using TCP/IP. For example: assume in a factory, the connections of the devices are based on Serial-to Serial communication, to retrieve data from RS-485 devices distributed in various locations, the user can use a few PDS-700 modules to create pair-connection application, and then the RS-485 devices distributed in various locations can be accessed, controlled, and managed via TCP/IP communication with ease.




 

Many-to-One TCP Client-Mode Settings

The following example shows how to connect multiple Client-Mode PDS-700 to the same Server-Mode PDS via TCP Client. With VxComm Driver/Utility and the easy-to-use interface provided by the built-in Web Server in PDS-700, the host PC can easily remotely access various RS-485 devices by PDS-700.




For PDS-700 series product information, please refer to:
https://www.icpdas.com/en/product/guide+Industrial__Communication+Serial__Communication+Serial-to-Ethernet__Device__Server#815
For more detailed information of PDS and other DS series products, please refer to:
https://www.icpdas.com/en/product/guide+Industrial__Communication+Serial__Communication+Serial-to-Ethernet__Device__Server#814