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Disclaimer: This document is written in the hope that you can utilize for your own education to gain knowledge of PLC systems (should you decide to utilize this document). Although I believe the information in this document to be accurate, it is YOUR responsibility to verify this information before implementing it in any way, especially when damage to personnel or equipment could result. By continuing to read this document, you agree to hold no one who writes, modifies, or distributes this document liable in any way (even negligence). Due to the wide variety of plant applications, some of the examples in this document may be prohibited at your location, or could cause damage to equipment, or harm personnel.
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Flashing ControlLogix Modules


In order to flash ControlLogix firmware, you need to have the Control Flash utility installed. If it is not installed on your PC, the installation program can probably be found on the same disk as RSLogix 5000.


In this example, we are going to flash a 1756- L1 processor.


  1. Before starting, make sure necessary drivers are configured in RSLinx. If your drivers are not configured in RSLinx, then restore from the appropriate backup file, or consult your documentation on how to configure specific drivers to communicate with your equipment. To open the Control Flash utility click START|PROGRAMS|Flash Programming Tools|Control Flash.




  1. Be sure to read all instructions that are presented to you, and take all necessary precautions while flashing a module. If your flash procedure is interrupted, you could damage the module.



  1. On the first screen, we are going to press the NEXT button.



  1. Choose the device that you wish to flash. For this example, we will use the 1756-L1 option. Then press NEXT. Now the ControlFlash utility will ask for the path of the device you wish to flash. Drill down through RSLinx until you find the device you are wanting to flash. Highlight the device, then press OK.




  1. Next you are asked what firmware version you want to flash the module to. In this case, the module will be flashed to firmware version 10.23. If the processor's firmware was not the same firmware that we needed, we would highlight the revision of firmware we want for this update, and then press NEXT.




  1. Next you will receive a warning. Read the warning carefully. If you still wish to flash the module, press FINISH.















The firmware update will now take place.




There may be more than one stage in updating a module, so be sure not to interrupt the update process until it is completely finished.


When the update is finished, you will see the following message: