001 P/S Alarm FANUC OM A

We have rewritten our main computer program to run on a Mac OS 10.10.3 (Yosemite)

Everything is okay except communicating with the Control which is connected to our two head router.

This is a piece of a typical file:

%
O1001
G91G28X0Y0
:
:
:
M30
%
Stepping through the computer program one line at a time, we are okay for the "%" and the" O". When it comes to the "1" following the letter "O" we get the 001 P/S Alarm. These old controls have manuals that refer to "Paper Tape Reading". The "001 P/S Alarm" is one of those. It is telling us the Parity is wrong. We have checked with company who built the machine and control to make sure we have the Parameters correct in the machine. Computer program is set exactly the same. We have had a comment from a programmer that some folks have changed the computer to 8 Data Bits and no Parity. The control stays at 7 Data Bits with Even Parity. We have not tried this yet.

We think our problem might be that the newer computer with the latest OS may be feeding info to control too fast. Ideas for slowing the Computer Program would be appreciated.

Actually any and all ideas would be appreciated very much.