im setting up a topper tmv400 fanuc 0-m controller and i keep getting errors on controller 085 087 001 been changing parameters to meet with the same settings as the com 1 port still no luck

anyone with any suggestions would be great

If the settings are correct in you parity, baud rate, etc: Nine times out of ten your cable needs to be worked on. The pins used are different for every machine, and sometimes different for the same controller. If you have a manual search for a diagram of the correct wire/pin relations.

Good luck
Chris