Posted 13 Nov 2017 On 11/11/2017 at 4:59 PM, IO_Rack said: I get the same error as you did. I'm sorry I don't know the answer. I know of no other programming packages for the NT31. Can you get support from the OEM? If not then I would contact Omron Technical Support to see if they can open/convert the file. Hi regarding the HMI file. The supplier told us that they are using NTST v4.82 and they can open. I have installed the same software version but still, the same error exists. Do you think there's another solution for this? does it need to be converted or there is another procedure for opening the file? Share this post Link to post Share on other sites