[ozgurm]

Dear Friends!

We have Churchill cnc lathe with Mark Century 200o control.

We want to send G-Code with DNC !

Can you help us? We need the RS232 cbling detail and DNC program.

[Hursty]

I have some old stuff from when I worked for Churchill; not sure if I have the RS232 details, I will have a look. I do have the progamming books.

[bobecm]

Hello Ozgurm
If you find solution, share it wit us , please. Wiring and parameter detail's. Thanks

[andycarter]

If you don't already have DNC software, you can download iWorkshop CNC File Transfer from http://www.iworkshop.co.uk

On the CNC control there are a couple of parameters for baud rate:
LOAD BAUD RATE = 4 (1200)
OUT BAUD RATE = 4 (1200)
PROTOCOL = 0

The controller requires a blank line before the first line "N10 (ID,PROG,1,NAME)"
and #4 (EOT) at the end of each transmission, in practice sending multiple #4#4... is more reliable.

Thes are the settings for the computer:
BaudRate=1200
StopBits=1
DataBits=7
Parity=Even
FlowControl=Hardware
InitString=
TermString=#4#4#4#4#4#4#4#4#4#4

The cable is as follows:
2-3
3-2
4-5
5-4
6-20
7-7
20-6

Hope this helps.

[bobecm]

Thank you Andy
I will try this ASAP and write result to you.

[esm7]

I am trying to get serial communications between a PC with surfcam, and a Mazak mill with a GE mark century 2000 controller. Does anyone know what the settings should be for communications, and perhaps the procedure on the machine side to download a file from the PC to the machine?

I tried the circuit diagram for the serial connections for a tape reader, and built a cable. The pins I used were 2,3 ,7(signal gnd) ,5,20 shorted on the machine side.
unfortunately I think I am missing part of the process / or I have made a mistake.
I keep getting an error on the machine side when I try to load the program:
2966: load/out terminated error opening device
io status returned: file port already opened

Any help would be greatly appreciated.