Customer Notice Regarding Crimson 3.0 Software
Rev. March 26, 2024 [12:15]

On Tuesday, March 26th, Red Lion released a new build of Crimson® 3.0 to its website. This update resolved the incorrect timestamps on data, alarm, and event logs, as well as the remote cloud connectivity issues.

Download Crimson 3.0.714.0

Some Red Lion devices can support more than one version of our Crimson® software. If you are planning to move your devices to a different version of Crimson®, PLEASE verify your specific application before deploying in a production environment.

If you need any further assistance, please contact Red Lion support via the methods listed below:
+1 (877) 432-9908
Red Lion Support


Crimson® 3.0 is Red Lion's powerful programming software for G3, G3 Kadet and Graphite® HMI operator panels, Graphite Edge and Core Controllers, Modular Controllers and Data Station Plus .

Crimson 3.0

Crimson 3.0 software features support for over 300 protocol drivers, including Modbus RTU and TCP/IP, EtherNet/IP and Emerson ROC. Crimson 3.0 also supports DNP3 serial and Ethernet communications for our rugged Graphite controllers and Graphite HMIs. With an intuitive, drag-and-drop graphical user interface and a variety of hardware offerings each supporting multiple simultaneous conversions, customers can easily integrate new functionality into virtually any PLC, PC or SCADA system.

Crimson 3.0 also includes Crimson Control, enabling organizations to use IEC 61131 programming languages – such as ladder logic, function block, structured text and instruction list – to solve specific application needs by developing logic control much like a Programmable Logic Controller (PLC) or Remote Telemetry Unit (RTU) without the added expense. Complete with online debugging capabilities, Crimson Control is supported natively on our Graphite Edge and Core Controller products, and is easily added with a Graphite Crimson Control module to our Graphite HMIs.

Many of Red Lion's automation products are programmed using Crimson 3.0 software. Please see our Hardware Support page for those products that require Crimson 2.0 software.


Crimson 3.0, Gold Build 714.000

Note: This build requires a PC running Windows 7 or later. Tablet PCs are not supported at this time.

Installing Crimson 3.0 software is as easy as 1-2-3:
1. Right-click on the Download link below and select Save As
2. Select a suitable directory on your PC to save the file
3. When the download is complete, run the file to install

Click here to Download (174 MB)

Problems downloading may be due to heavy internet traffic. If you experience problems, please try downloading at a later time.

Crimson End User License Agreement

Previous Builds

Please refer to the Revision History for older versions of this software.
Note: Windows XP users should download version 662.006 as this was the last version to support the XP platform.


Crimson 3.1 Migration Guide (Revision 1) 530KB
Crimson 3.0 Quick Start Guide (512KB)
Crimson 3.0 Introduction to Crimson Control (191KB)
Crimson 3.0 Manual English (Revision 3.4) (5612KB)
Crimson 3.0 Manual Chinese (Revision 2.1) (5588KB)
Crimson 3.0 Manual French (Revision 2.1) (5849KB)
Crimson 3.0 Manual German (Revision 2.1) (5667KB)
Crimson 3.0 Manual Spanish (Revision 2.1) (6413KB)
Crimson 3.0 Reference Manual (Revision 2.6) (1140KB)
Crimson 3.0 Reviewers' Guide (47KB)
Crimson 3.0 Tutorials English (4132KB)
Crimson 3.0 Tutorials French (4420KB)