Hold the Pony!...
RetiQlum said:
...I keep getting "unable to communicate with device" from Control Flash for firmware version 5.something...
It's possible you may have permanently damaged your EN2T module but we won't know until you attempt the flash again using the correct procedure.
But first, let's clear up what you have and what you need...
RetiQlum said:
You wouldn't happen to know what the latest revision I can use do you?...
To support Open Sockets communication your 1756-EN2T Series A must be using firmware revision 5.x minimum and your Logix processor must be using firmware revision 15.x minimum.
Your 1756-EN2T Series A is currently at firmware revision 1.003 which of course will not work. So you have correctly guessed that this may be the main reason you are here.
Firmware revision 1.003 happens to be the oldest and original revision that these Series A modules support...
1756-EN2T Supported Firmware Revisions:
Rev./Series
1.003 A
1.004 A
2.005 A B C
2.007 A B C
3.004 A B C
3.006 A B C
4.002 A B C
4.003 A B C
5.007 A B C
5.008 A B C
5.028 A B C
10.006 D
10.007 D
10.010 D
Series A support firmware revision 1.x - 5.x, Series B & C support firmware revision 2.x - 5.x whereas Series D support only firmware revision 10.x.
So the latest you can and should flash the Series A module to is revision 5.028 for Open Sockets communication support.
But now the correct procedure...
You cannot flash a Series A at firmware revision 1.x directly to revision 5.x. You must first flash to revision 2.x minimum and then revision 5.x. Attempting to flash from 1.x directly to 5.x may have rendered the module inoperable. You should now attempt a flash to revision 2.x and see if that is successful. If so, then move on to flash to revision 5.x. If it will not successfully flash for you then it is most likely that the module is damaged.
If that all works then you should be good to go. I would also advise you to get the latest Add-On Profile (AOP) and EDS for these modules.
Good luck.
Regards,
George