RSLinx Gateway

Introduction to RSLinx Gateway RSLinx Gateway is a version of RSLinx which allows you to access other types of networks. For exmple, you will have one computer that has a 1784-KTx or 1784-PKTx. This computer is connected to a Data Highway Plus network. This computer is also on the Ethernet Read More »

RSLinx RSWho

Yellow Question Mark in RSLinx

How to Resolve the yellow question mark in RSLinx In this post, we’ll discuss a method to resolve the yellow question mark in RSLinx. This is a common issue if you have an older version of RSLinx with newer hardware. You might also see this if you have a third Read More »

Question Mark

ControlLogix over the Internet

Introduction to ControlLogix over the Internet In this section, I’ll show you how easy it is to connect to a ControlLogix system over the Internet without proper security. Undoubtedly, using this procedure will cause a severe security threat. The purpose of this to show how easy a simple change in Read More »

RS232 to DH+ Passthru

Introduction to RS232 to DH+ Passthru on the SLC 5/04 With RS232 to DH+ Passthru, we will connect through the serial port on a processor, and access the DH+ network. With this in mind, another option would be the 1784-U2DHP. However this device might cost around $2,000 to purchase. In Read More »

Serial Server over Ethernet

Introduction to Serial Server over Ethernet There are many applications in which you need a Serial Server over Ethernet solution. You might have a serial device out on the plant floor, that you need to access remotely. One solution to this problem is a Serial over Ethernet server. Basically, you Read More »

Serial Server

RSLinx OPC Server

Introduction to RSLinx OPC Server OPC (OLE (Object Linking and Embedding) for Process Control) and DDE (Dynamic Data Exchange) are a way for applications to interact with each other to share data.     The RSLinx OPC Server can share data with other applications, such as an Excel Spreadsheet or OpenOffice Read More »

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Assigning IP Address with RSLinx 1

Introduction to Assigning IP Address with RSLinx (Static IP) There are two common ways to assign an IP address to an Ethernet module in the ControlLogix chassis:  BootP, or RSWho.  A third way of assigning an IP address only works if you are using the subnet of 192.168.1.x.   On newer modules, Read More »

Port Configuration