Need Help!- drip feed

[kirby]

i am trying to drip feed from a pc to a fanuc om... i actually have a post from before but it was never fixed. think my best approach is to start over fresh. that said i have bought an in line tester so i can tell if the pc and controller are communicating. i am getting an 087 alarm.

what is the first thing i should check...

and does anyone know what lights on my inline tester would light up if the controller was telling the pc to stop sending.

i know my controller will drip feed because i have done it before...
i have messed with the baud rate...
i have slide the fifo buffer down on the pc..
i am almost positive it is a situation where the pc is ignoring the controller or the controller isnt telling the pc to stop...

[GPena]

Check the cable configuration, maybe there is a bad connection.

Greg.

[kirby]

Originally Posted by GPena Check the cable configuration, maybe there is a bad connection. Greg.

i tested the cable for continuity and everything was fine...

[GPena]

Check the configuration of the shorts in the cables please.

Greg.

[kirby]

Originally Posted by GPena Check the configuration of the shorts in the cables please. Greg.

I will assume you are asking which wires are jumpered together on the 25 pin side...

4 to 5
6 to 8 and 20

right now the machine is sitting with a rs232 in line tester... what would i look for if the machine is telling the pc to stop sending.. the tester has the following lights: RTS, CTS, DSR,DRT,CD,TD,RD

[GPena]

Also in the DB9 must have shorts:

7 to 8
1 to 4 to 6

If you don't have them I am pretty sure that there is the problem.

Greg.

[kirby]

Originally Posted by GPena Also in the DB9 must have shorts: 7 to 8 1 to 4 to 6 If you don't have them I am pretty sure that there is the problem. Greg.

i am checking now but i know we have drip fed with this setup before...and the cables were made by a fanuc tech...

[kirby]

Originally Posted by GPena Also in the DB9 must have shorts: 7 to 8 1 to 4 to 6 If you don't have them I am pretty sure that there is the problem. Greg.

you will have to pardon my technical terms here...

k...what i have is wires 2 ,3,and 5 going out and the rest in a shorted together in a bundle.. I have no way of knowing what wires are what as they originate from the jack end and not the end that connects to the computer..

[kirby]

also i have a chart here for a fanuc om that says this is the right configuation

25 pin 9 pin
2...........2
3...........3
4
]
5
7...........5

6
]
8 and 20

[kirby]

there are no shorts in the cable..just tested again for continuity...

2 matches 2 and only 2 and so forth ..there are no shorts anywhere other than the ones that are supposed to be there.

[kirby]

If i try to output a program..following the manual
1 computer to recieve
2.edit mode
3.program key
4.enter program number
5.out start

the following happens with my inline tester
1. all lights red at the start
2. output start pushed all lights go green except for TD and RD..
3. when output start stops flashing all lights return to red

but i get nothing on the computer end..

[cdmurphy]

Are you using XON/XOFF handshaking for your drip feeding? I went round and round trying get drip feeding to my 10M based mill working. I was trying to use hardware handshaking, thinking that it was superior to XON/OFF, but it turns out that at least the 10M only uses XON/XOFF for incoming files (drip feeding), and hardware handshaking for outgoing (punch) files. Once I enabled XON/XOFF flow control on my DNC software, all of my buffer overflow issues went away.

- Cameron