Fanuc 6m rs232 problem

[rjw]

I have a problem with an Amada Pega w/ Fanuc 6m control.

It can send a program to a pc, but it will not receive from the pc.

amada had us change out all the cables, and one of the daughter boards (punch). They told us that if that didn't work, then the problem was with the motherboard.

Does anyone have a schematic of the motherboard ? or any idea which Ic's may be faulty? or any other ideas?

the board is A16B-1000-0030 060

Thanks

[3d GEORGE]

This sounds like a parameter setting problem. If you don't get something from other members, I have all the settings, but they're buried away.

[dcoupar]

RJW,

What happens when you try to send from the PC to the NC?

Do you get an alarm? Does it appear the control is trying to receive? What software are you using to send/receive?

[rjw]

A tech from amada looked at it, and tried to send a file from his laptop (proven to be good and with other cables), with no success. It was he that told us to order the board and when that didn't work, his conclusion was that there is a problem with the motherboard.

Our com software is from Metalsoft...it receives from the control fine.

We've gone through the books and the parameters all seem to be correct.

The control just sits, flashing the word edit, but nothing ever appears on screen. No alarms, nothing.

PC com port settings are at 9600, 8, 1 stop bit, no parity. we've tried changing this to all different baud rates, 7, 1 and 2 stop bits, even parity (as per something we found on the net, but nothing works.

My question is ...why does it send and not receive...must be different IC's controlling the send and recive...or something?

thanks

[Al_The_Man]

There are two separate IC's, one for transmit one for Receive, I doubt it being the MB if it transmits OK.
With the 6 you may have to limit the baud rate to 4800 max or 2400.
I would also use a three wire cable with the hardware handshake jumpered out, but first make sure you have the s/w handshake set for XON/XOFF.
You also have to set the matching RS232 parameters in the CNC.
Al.

[rjw]

It was working at 9600 baud rate for many years??

Parameters 311, 340 and 341 all match, but punch code is set to 0

Does it send and receive on the same hardwire?

I'll re-check all the cables tomorrow, but they were all supposedly already checked.

Would you hapen to have a schematic of the m board?

Is there some other dnc software available that I could try (preferably free...lol)

thanks

[tmbruno28]

just one thing... on fanuc system 6 model B, the I/O is not located on the mother board, but on a crt/puncher pcb witch is called A20B-0008_0430,you have 2 ic on this pcb called 75189 and 75188, please exchange and it will works again

[rjw]

just one thing... on fanuc system 6 model B, the I/O is not located on the mother board, but on a crt/puncher pcb witch is called A20B-0008_0430,you have 2 ic on this pcb called 75189 and 75188, please exchange and it will works again

We changed out that card and still no luck.

this is a model 6m...is it the same?

Which ic is for receive?

Does anyone know where I can get schematics for these boards?

Thanks

[tmbruno28]

bad thing ...
i can give two ways, but same thing.
The UART unit (located on mother board, is deffective)
the clock of the pcb is,not exact, the pcb works normally, so you can send but no receive, but normally, you should get somme alarm, 86 or 87 ;
just one thing, did you try with a jumper between 4 and 5 (rts and cts) on nc side

[rjw]

bad thing ...
i can give two ways, but same thing.
The UART unit (located on mother board, is deffective)
the clock of the pcb is,not exact, the pcb works normally, so you can send but no receive, but normally, you should get somme alarm, 86 or 87 ;
just one thing, did you try with a jumper between 4 and 5 (rts and cts) on nc side

did not try a jumper between 4 and 5..what will that do?

If it is the mother board, what are the options?

thanks

[tmbruno28]

first please try with the jump in your plug, only use pin 2,3, and seven, 6, 8 and 20 must be also already jumped


tell me after

[rjw]

first please try with the jump in your plug, only use pin 2,3, and seven, 6, 8 and 20 must be also already jumped


tell me after

Let me see if I got this right

at the control, 6.8 and 20 are jumped. 4 and 5 are also jumped.

2 connects to 2 on db9 at computer
3 connects to 3 "
7 connects to 5 "

at db9 end

1,2 and 6 are jumped
7 and 8 are jumped

Is this correct...as in null modem??