[Grusse]

You have to make sure you have selected a program on the CNC that you wish to send to the PC.

Constant number N770, if the value= 3 works, then use that, don't change it.

Also you may try to use the V24 program I sent you.

When i have constant number N770 at value=3(V11/V24), then i can´t send the program from Pc to machine anymore? But when i have N770 =0(V24) then it works fine to send the program, but the machine will not start?

Machine constants N782 to N798, what setup should this have?

[thebodger@roger]

After you change constant N770 = 0, are you remembering to return the constant write toggle switch back to the run position??? Or if you use constant N80 to unlock the constants you must return N80 = 0, to be able to start hydraulics. I don't understand how changing a constant for communication causes the machine to not start??

On our Maho mills we don't have N782, but I believe this is for RS 422???

But for :
N796 = 1
N797 = 1
N798 = 0
N799 = 0

[Grusse]

After you change constant N770 = 0, are you remembering to return the constant write toggle switch back to the run position??? Or if you use constant N80 to unlock the constants you must return N80 = 0, to be able to start hydraulics. I don't understand how changing a constant for communication causes the machine to not start??

On our Maho mills we don't have N782, but I believe this is for RS 422???

But for :
N796 = 1
N797 = 1
N798 = 0
N799 = 0

Yes i was remember to return the constant write switch. But like you say, i don´t understand why the machine not start after changing constant N770? It´s correct that constant N782 is for RS 422, do you now what this serial port is for? Maby i have to change some machine constants for RS 422 to make it work?

[thebodger@roger]

RS 422 is not a standard port on most PC's. Also the CNC may not have this port either. The constants for RS 422 are showing, but the hardware in the CNC may not be there. Anyway you can "Google" RS 422 if you wish to learn about it.

Did you try to completely power off machine after changing N770, then restart and see what happens?

[Grusse]

RS 422 is not a standard port on most PC's. Also the CNC may not have this port either. The constants for RS 422 are showing, but the hardware in the CNC may not be there. Anyway you can "Google" RS 422 if you wish to learn about it.

Did you try to completely power off machine after changing N770, then restart and see what happens?

I was turn the power off and restart the machine after changing constant N770.

I have to check one more thing with you. When i am push the "PROG MEM" key, then "ID DIR", then "DATA IN/OUT" and if i now push at the "menu" key then i got two choice "1. DATA IN/OUT" and "2. DNC LOCAL".

When i choose "1 DATA IN/OUT" mode, and hit the "DATA IN/OUT" key, and input, then it looks at the same way as it do when i have set the constant N770 to 0(=V24). An extra line comes up where it stands "DATA, PM, N". But i still can´t send/recieve any programs. And when i try to send program from the machine, it start to count lines in the program. And it looks like you succeed with the transfer, but nothing is coming out fom the machine?

And if i choose "2 DNC Local" and hit the "DATA IN/OUT" key, and choose "Input or output" then it does´nt happen anything and after a while the errorcode D84 comes up?

But when i have set the machine constant N770 to 0 and go to "PROG MEM", then "ID DIR", then "DATA IN/OUT" and if i try to hit the "MENU" key, then i don´t got any choices? If i choose the "DATA INPUT" the extra line comes up with "DATA, PM, N" and i could send the programs from the Pc to machine with no problems.

Do you have this two choices, "1 DATA IN/OUT" and "2 DNC LOCAL" at your machine?

[thebodger@roger]

I never get the option DNC Local on our machines. I wonder if you have a different software version in your control. If you select DNC it is normal to get an error code, because you don't have the DNC software on your PC. The CNC is trying to setup a DNC link with the DNC software on the PC. If it can't find it, it will time-out and give an alarm code.

When you say that you see program lines being read out at the CNC, but you get nothing at the PC sounds strange. Maybe a hyperterminal problem.
Are you setting hyperterminal to recieve before you start to output from the CNC?

[Grusse]

I never get the option DNC Local on our machines. I wonder if you have a different software version in your control. If you select DNC it is normal to get an error code, because you don't have the DNC software on your PC. The CNC is trying to setup a DNC link with the DNC software on the PC. If it can't find it, it will time-out and give an alarm code.

When you say that you see program lines being read out at the CNC, but you get nothing at the PC sounds strange. Maybe a hyperterminal problem.
Are you setting hyperterminal to recieve before you start to output from the CNC?

Today i was try with a stationary pc(I have a laptop before), and now i could send and recieve programs in V24 mode(MC N770 =0). Still the same problem to start the machinein V24 mode, and when i turn the constant back to V11/V24 then i could run the machine but not send/recieve any programs......

I guess that when i set the V11/V24 mode to machine, then the 25-pol com-port will be a RS 422 com-port, and with V24 mode the 25-pol com-port will be a RS 232 port? And it seems like the DNC run through RS 422 internal? That´s why i can´t run the machine when i change to V24 mode?

I don´t know anything about that, but somebody maby know how it work?