Newbie- Problem with Data flow between Fanuc 6M and DNC software

[Saluce]

I'm having a problem loading a particular program into a Fanuc 6M control. We just recently upgraded to DNC Precision software for communication. The computer and control use 4800/7E1, Xon/Xoff control. For most programs, we have no problems.

That being said, there's obviously a problem =). One particular program has multiple subprograms, some of which are only one line long. Whenever the control tries to read the short subprograms from the file, I get an error 87, RS232C -- which, according to the manual, says that there is not enough time for the control to process the program. A small snippet of the program is below. How can I keep the machine from erroring out whenever it tries to read the bottom lines? Also, is there a way to get the Fanuc control to output multiple programs in sequence so that the DNC software will store them all into one file?

Thanks for your input!

-saluce

(!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!)
...
(!!!!!!!!!!!!!!!!!!!!!!!!!)
N50 G91G28G40G80X0Y0Z0M38
M98P3
G90X3.0Y-8.50S1230T2M3
G0G46Z1.0H1M8
...
G80G0Z1.0M9
G91G28G40G80X0Y0Z0M5
M1
T22M6
M30

:01
N1G90G0G92X17.963Y2.004Z18.370B0
M99

:02
N1G90G0G92X17.963Y2.004Z18.370B90
M99

:04
N1G90G0G92X17.963Y2.004Z18.370B270
M99

:05
N1G90G0G92X17.963Y2.004Z18.370B135
M99

:06
N1G90G0G92X17.963Y2.004Z18.370B225
M99

:07
N1G90G0G92X17.963Y2.004Z18.370B315
M99

:08
N1G90G0G92X17.963Y2.004Z18.370B45
M99

:09
N1G90G0G92X17.963Y2.004Z18.370B304
M99

:03
N1G90G0G92X17.963Y2.004Z18.370B180
M99

[Dan Fritz]

The 6M will punch all the the programs in memory (in no particular order), by putting the CNC into EDIT mode, turning off the memory protect key switch, and pressing the letter "O" followed by the minus sign (-), followed by "9999", then pressing PUNCH.

That will dump all the programs from the Fanuc memory into the DNC system in one shot. If the DNC system is set up to receive until data stops coming in, then all that data should be saved in one file.

If a file has multiple O-numbers (or colon-numbers) in it, you can read them all back into the Fanuc by getting the file ready on the DNC system, then pressing "O-9999" then READ on the CNC.

Are you sure of the stop-bits setting on the Fanuc? Most Fanucs come factory set for 4800 baud and 2 stop-bits (not 1). These are set with parameter 311. Here are the correct settings for 4800 baud and 1 stop bit:

Parameter 340: 2
Parameter 341: 2
Parameter 311: 1 1 0 0 1 0 0 1

On the SETTING screen, you need to have the INPUT DEVICE 1 bit set to "0" and the INPUT DEVICE 2 bit set to "1".

Let us know how it goes ...