fanuc OT linking problem

[picks]

I'm not sure is this the right place to ask about linking problem, I'm lost!
Just installed Mastercam5 lathe for my FEMCO Fanuc OT CNC lathe machine and tried to send NC file from PC to machine for the last 6 hours and get s totally nothing.

setup:
computer OS - windows 7 (is windows 7 a problem? tried XP but not successful as well)
using parallel port from motherboard - 25pins female
existing machine RS232 - 25 pins female

connection cable - 25 pins male on both ends.

Procedure:
1)setting are (baud rate-4800,2 stop bits, 7 data length,software flow control, even parity)
2)machine setting (switch to edit - press I/O - press read or press input - LSK blinking)
3)press send with CIMCOedit

Result:
LSK still blinking without any alarm

I'm suspecting the cable is not correctly done, but previously when i used demo mastercam4 version it is still functioning???!!!

my connection cable i'm connecting 2,3,4,5,7 and jumper 6,8,20

where has it gone wrong? hopefully not machine hardware issue and also hope that my explanation is comprehensible.

please please please advice.
thank you

[angelw]

where has it gone wrong?
thank you

In a few places.

The communication with your controller will be via RS232. Accordingly, you need to use the serial port of your PC; you can't go from the parallel port to a serial port as you're trying to do.

Your PC will probably have a 9 pin (male) com port, but following is the cable pin out for both DB9 and DB25 connectors. Use shielded, low capacitance cable. The standard is based on cable of 50 pF/foot capacitance and will give you a max cable length of about 1000 ft at 4800 baud rate without going beyond the limitations of the standard. In practice, you can push this length far beyond this by using lower capacitance cable.

If your PC does not have a Serial Port, but only USB ports as is the case with most Lap Top computers, then you're likely to have problems with Windows 7 if its installed as a 64 bit system and you're using a USB to Serial converter. You won't have a problem with Win XP and the USB/Serial adapter if one is being used.

Regards,

Bill


Machine End------------------------------PC End
DB25 Male Connector-------------DB9 Female----DB25 Female Connector
1 Shield Trace-----------------------Not Connected
2-----------------------------------2-----------------3
3-----------------------------------3-----------------2
4
| Bridged
5

6
|
8 All Bridged
|
20

7------------------------------------5----------------7

The following parameters need to be set at the Machine Control

#0002
Bit 0 = 1 for 2 Stop Bits
Bit 2 = 0 for RS-232 Input
Bit 7 = 1 for no feed output before or after data

#552 = 10 (4800 Baud Rate) Starting Point

Machine Control Set Page Settings
I/O = 0
ISO Format

The Mastercam Comms settings are as follows:

Handshaking Method = Xon Xoff (Software Handshake)
Baud Rate = 4800 (Starting Point)
Data Bits = 7
Stop Bits = 2
Parity Bit = Even

[picks]

Thanks angelw, it is indeed that the parallel port i used was a mistake and done the wiring and switching to serial port as indicated and it's done!