Ok, so I have a 5200m. I downloaded the ER-52xx Series PC Utility (v3.00e) from the goodson website. I've scanned the forums for the same issue and I have found multiple inquires with somewhat of the same problem but not exactly mine. I purchased a USB to DB9 Serial cable with RS232 support. Using that I was unable to connect receiving the REGISTER NOT READY error. I read somewhere online that a null modem adapter will do the trick, so I purchased one, but it still doesn't seem to solve my issue. I have an EPROM Version: 7.5 Checksum: 4631 Boot/App: 2E33/17FE Jan. 05 2009. I am wondering if the AU Utility will work with my register. I have set my register to device function to PC with all the other correct serial settings. Thanks for the help, I hope to hear back soon from someone.

Thank you,
Pat

most similar posts get stuck on port initialise fail - you have got past this stage - so your software has found and negotiated data transfer with the port on your pc and the usb-serial converter

now, the data it is sending is either not handshaking with the register ie. wrong port set up for pc comms or incorrect cable pin out configuration. or the register is in the middle of a transaction.

don't change anything on the pc end, it sounds like you have got that bit sussed - i would start with the cable from the db9 to the till - check that it has the correct pinouts and that the port that you programmed on the register is actually the port that you plugged the cable into [i have been caught out with that before

let us all know how you get on

I am on the correct port (COM3), and I have a DB9 cable. My settings for Port 1 are all correct on PC and the rest set to 0. Could it be because of how new my EPROM is?

nope the incorrect eprom version just corrupts the plu data, everything else should be fine
i know that the pc end is correct or the error would be "PORT INITIALISE FAIL"

ARE YOU ABSOLUTELY SURE THAT THE DB9 MALE TO FEMALE CABLE IS WIRED CORRECTLY?

I am not entirely sure it is spot on with the cable. I'll run to the store to pick one up if its not the correct kind. If you could provide me with the correct specs that would be awesome.

yup
2 > 3
3 > 2
4 > 6
5 > 5
6 > 4
7 > 8
8 > 7

good luck keep us posted

Would a null modem adapter handle this pin out if I go from
Till to null modem adapter to db9 to usb to laptop?

i never pretend to have more knowledge than i have - i have no idea WHAT THE PINOUTS ARE FOR A NUL MODEM CABLE - THOUGH I DO KEEP SEEING THE TERM POSTED

from a cash register background, i make all my cables myself, if you take the pinouts i have described to your local pc shop [not one of the nationals!!!!] i'm sure one of their guys will either confirm that a nullmodem cable will do - or for a small fee be able to build one for you
the left hand numbers are to a male plug the right to a female.

[im not ignoring you but as of tomorrow, will be unavailable for a week - good luck]
Andy