Updating the firmware (embedded software) of a 6270A pressure controller is very easy and only requires a USB cable, a computer with a USB port and the firmware files.
Updating the PCM (Pressure Control Module) firmware is a separate (but similar) process to updating the main firmware. Do not attempt to update the main controller firmware and PCM firmware at the same time because the PCM will not be updated.
Note that if you operate more than one 6270A controller in stacked mode, they must be updated independently and directly (not while in stacked mode).
View the remaining steps and download the firmware file(s) from the following web page. Note that you must have a login to the flukecal.com website to download the firmware. A "Login" link is on this same web page if you need to register. http://us.flukecal.com/literature/software-downloads/firmware/6270a-embedded-software
You can also view the changes, fixes and additions for each revision on the above page.
The 6270A Operators Manual and Programmers Manual were updated with new features and commands of the new firmware (as of May 2016). Manuals can be downloaded from this page,
If you have questions, contact Fluke Calibration Pressure Technical Support at the below link or by calling 1-877-355-3225