Re: [CAD_CAM_EDM_DRO] Re: hydrapath 3 data transmission ???

Tom, Dave,

Thanks, Yeah we messed with it about an hour or two and we could get the cam prog/PC to happily send but the CNC machine was none the wiser. I figured it was probably pin-outs. As the machine has a DB 25 and the PC of course has a DB9 for com 1. We had to use an adapter to even connect the cable. The manual talks about a casette reader and receiving from a punch tape :-) We've came a long way since 85...

It's not my machine, if it was I know what I'd do to fix it. haha

Ron


caudlet <thom@...> wrote:
--- In CAD_CAM_EDM_DRO@yahoogroups.com, "rogersmach" <rogersmach@...>
wrote:

>
> Sorry for the OT, does anyone have experience with transmitting data
> from a PC through an RS232 serial port and a hydrapath 3 cnc
> controller.
>
> Have one and can't get it to receive from the PC. Tried every setting
> we could. Confused about how to set the controller to accept data. Is
> the cable used standard or special. Any help with this will be greatly
> appreciated.
>
> Thanks, Ron
>

Buy yourself one of the cheap serial port breakouts with the LED's and
wires you jumper. Most serial communications between devices needs a
crossover between Receive and Transmit signals and some also need the
DTR and DSR or CTS pins swapped. If you can get pinout on the
HydroPath and match the signal names with the PC port you have a start.

THEN the fun begins. You have to have the right signaling on the
right pins. Even a baud rate mismatch will result in the unit just
sitting there.

Trying to do it by changing settings without having the right pins
hooked up should keep you busy until late Summer (:-o






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