Alway start diagnosing communication problems by 1st sending from the machine to PC.
This is because the machine has the file and may add special codes before transmitting
Areas where problems may exist
1- the start of file format may not be correct ie.% etc
2- M/c command format to read the file
3- M/c comm settings
4- PC comm settings
5- cable wiring
If going from PC to the machine, there is too many areas that could be setup wrong.
So we eliminate as much as possible, set the PC and M/c to specs, check cable wiring to specs, which leave #1 and #2, if we start on the M/c side #1 and #2 are not an issue. Then alter 1 variable at a time ( some variables do not need altering (ie Baud rate, data bits, start/end codes on NCfile )
After a "send from M/c" success, we move to "send from PC", ( we know that #3, #4, #5 all work... Just leaves #1 and #2 to figure out ) |