More DNC problems

[jnc]

Hi Folks,

I have a VF-4 that I'm trying to drip feed(DNC) a very large program that I just can't seem to get to work. I am using Cimco to send the program. The laptop that I'm sending from has 25 pin connection just like the Haas. The cable is about 8 feet long.

The settingson the laptop are 115.2k Baud, even parity, data bits 7, 1 stop bit, XON/XOFF

The settings for the Haas are the same. The memory is 842,443 bytes free.

When I send the program the Haas has on its screen....upper left hand corner

Program (DNC)
waiting for DNC




Lower left hand corner......

DNC RS-232
waiting for DAT


the program is not loading...should I see the program loading as soon as I start the download?

anyway....the program is not loading into the Haas...I'm stumped

I've read in previous posts about checking voltage at the connections but I'm not sure of the numbering of the pins on the connection.

Thanks
John

[WayneHill]

The 25 pin port on the laptop is a parallel port. The 25 pin port on the Haas is a serial port.

Is there a 9 pin port on the laptop?

http://www.cnczone.com/forums/showth...612#post152612

[jnc]

yes there are two 9 pin connections on the laptop male and female...

[WayneHill]

There should be a 9 pin male port that is the serial port. The other port is probably the video port.


The cable connector for Haas Mills

PC DB9 .............Haas Mill DB25
--------------------------------

2---------------------2
3---------------------3
8---------------------4
7---------------------5
5----------|----------7
................|----------1

1-4-6 ................6-8-20


Make a cable up and report back.

[jnc]

sorry for my ignorance but I've never made a custom cable.
I ssuppose you guys cut open the plastic connector and rewire
the connections?

I'll need to find a diagram of the pins and their
locations...never having cut open a cable is there a color coding for each pin number?

[jnc]

o I see the numbers on the connectors for the pins.I happen to have some 9 pin connectors that can be configured for different connections too.

Doesn't Haas sell a cable for this?

[WayneHill]

It's not rocket science. You can do it. Short out the pins on the connectors first, then wire the five remaining wires. Solder across the pin housings to short them together for the ones next to each other, like 1,4 on the DB9 connector and 8,20 on the DB25 connector. Loop a wire out and around pins 1,4 on the DB9 and 6,8 on the DB25.

[Donkey Hotey]

Or go to the electronics store of your choice and buy a standard 9-pin to 25-pin serial cable. They were used for external modems, serial printers and everything else. I've got dozens of them laying around. Quick and easy.

I literally just went through this yesterday. It's much easier than it sounds:
http://www.cnczone.com/vb...d.php?t=148379

[WayneHill]

And pickup a DB9 null modem at the store.

[jnc]

ok here's what I've done so far....I cut one end off of the 25 pin cable and stripped the needed wires 2,3,4,5,7,1

Wayne..on your diagram.....PC(pin5)..........Haas(pin7) you have a vertical line between the two. What does that mean? Should they be connected?

Wayne.....where does pin 1 on the haas side go?

the 1,4,6 and 6,8,20 pins I'm not sure about either

I'm replacing one 25 pin connector with a 9pin connector


Donkey...I found a serial 9 pin to 25 cable and tried loading the program...it did'nt work...I used the standard previous settings as per the Haas manual however.

[WayneHill]

Pin 5 on the DB9 is connected to both pins 1 and 7 of the DB25 connector.

Pins 1,4,6 are connected together on the DB9.

Pins 6,8,20 are connected together on the DB25.


I have wired four HAAS mini mills with this diagram. They work flawlessly.

[Donkey Hotey]

Originally Posted by WayneHill And pickup a DB9 null modem at the store.

Nope, not on mine. It was a straight DB25-DB9, without a Null Modem adapter. It worked fine.

That was the debate we had in the other thread. One guy is running null modem adapters on his machines and yet, mine worked without it. I'm just not sure why.

JNC: have you tried just doing serial file transfer yet? Launch Hyperterminal and see if the Haas can send the current program back to the PC. That's what I did to test things. It was working at 19200 (didn't try any more).