[ghyman]

Machine: MC 4VA
Control: OSP5000 M-G

The back story is that I can receive programs via RS232, but am unable to send them ('punch not ready' error, or 'device does not exist' when I try CN0: - CN4

I have been reading the forums and the maintenance manuals, and I know that most of the answers are to be found in the 'NC Operational Parameter (Long Word)' screen. (Specifically, parameters 42 and higher.)

However, that screen only lists parameters 1-32. Page up/down does not show any more, nor can I find them by searching for '45' (for example). Searching for a number higher than 32 will simply place the cursor on parameter 32.

If I hit 'page down' a few times in rapid-fire, I can sort of see the numbers 33-40 flicker and then disappear right where they should be when the screen refreshes, which makes me think they are somehow protected. I am really not certain.

Can anyone please tell me if this is normal, and if there is some (probably simple) way to display them for editing?

[dcoupar]

NC Optional Parameter (bit) 16 bit 7 = 1 will display your missing parameters.

[Superman]

Just querying your command line ??
CN0: - CN4

you should have
<PUNCH> CN0; (filename)[.MIN] <WRITE>

if you wish to rename the file while sending
<PUNCH> CN0; (filename)[.MIN],(new_filename)[.MIN] <WRITE>

() = the name of the file
[] = optional if the filename is a .MIN file, as this is the default extension

[ghyman]

NC Optional Parameter (bit) 16 bit 7 = 1 will display your missing parameters.

Thank you, dcoupar!

And superman, I should have given a better description of my input; I was in fact doing it the way you suggested. But thank you for making sure!

However, I am still not able to send from the control to the PC, regardless of the selected device.
All attempts return a 2125 Error (Puncher is not ready.)

The PC is awaiting receipt, and I am (90%) certain that it is configured correctly (since it is able to send programs from the PC to the control.)

Okumas have never been my strong suit; I am a Fanuc / Haas / Meldas sort of guy, so I am fairly sure there is some setting somewhere that I am just not seeing.
I am going to re-read the posts related to sending/receiving from this forum again and see if I am overlooking something.

[dcoupar]

How is your cable wired?

I use the same cable I use for Fanuc:

CNC <--------------> PC-DB9 (DB25)

1 <------- shield -------- no connection to PC side
2 <------------------> 2 (3)
3 <------------------> 3 (2)
7 <------------------> 5 (7)
4 & 5 jumpered on CNC side only
6, 8, 20 jumpered on CNC side only

[ghyman]

How is your cable wired?

I use the same cable I use for Fanuc:

CNC <--------------> PC-DB9 (DB25)

1 <------- shield -------- no connection to PC side
2 <------------------> 2 (3)
3 <------------------> 3 (2)
7 <------------------> 5 (7)
4 & 5 jumpered on CNC side only
6, 8, 20 jumpered on CNC side only

I'm 99% certain that is correct...
We have 2 MC4Vs and 2 Cadet lathes.
All 4 machines are connected to a printer switch box with 25-pin connectors.
The switch box has a 25-pin null modem adapter, then a 25- to 9- pin adapter, then a short cable to the PC.
Both lathes are able to send and receive, but thus far the mill is only able to receive. (The other mill was a recent purchase from an auction and is not under power yet.)

The software has a different config file for each machine, but uses the same settings for sending as receiving (that is, the same baudrate, data, parity, etc.)

The machines have been here since long before I started, and it has always been an assumption that the machines are not able to send anything back to the pc. But by changing the baudrate at the PC, I am able to receive. (I got lucky, the first baudrate change worked!) So it is now just a matter of changing the 'send' parameters on the lates to match the receive.

The mill, however, is starting to frustrate me.

It's acting like it can't see the PC at all; I've even bypassed the switchbox and did a 25-pin to null-modem to 9-pin to PC connection with the same results: 2125 puncher not ready no matter what device I choose (CN0 through 4, PP and TT), yet it can receive from the PC over CN0 with no trouble.

[Green Button]

Check this link, there should be all necessary info.
use D25-D25 full handshake

http://www.cadem.com/dnc-details/okuma-5000.pdf

What DNC program are u using ?
Check stop bits, data bits & parity.
Also check command parameters at start & end of your nc program (in pc)
(try to send same program what did y received)

[ghyman]

Check this link, there should be all necessary info.
use D25-D25 full handshake

http://www.cadem.com/dnc-details/okuma-5000.pdf

What DNC program are u using ?
Check stop bits, data bits & parity.
Also check command parameters at start & end of your nc program (in pc)
(try to send same program what did y received)

Software = "Camax Communicate" as well as win95 hyperterminal.
I've set stop/data/parity/handshaking to match the settings at the control

The PDF you linked to has good information, however I have 2 questions:
1. Are the listed bits in order from 0-7, or from 7-0?
2. It says that bit 12 controls stop bits and parity, but my manual says that parameter 8 is for those items. Can you please clarify?

[brylandry]

I'm trying the same thing is it #16 bit 7 does it read right to left or left to right?

[dcoupar]

I'm trying the same thing is it #16 bit 7 does it read right to left or left to right?

7 6 5 4 3 2 1 0

[underthetire]

Well, i was around when those were new
get one of these
RS232 Tester - Breakout Box - Serial Cables & Accessories at PCLoft.com
make sure your port is still good before you go crazy. Okumas of that vintage were very sensitive to unplugging/plugging in cables on the RS232 when they control was on. I did see a few ports blown from switch box issues as well. This box makes it real handy to verify cable connections before you hard cable.

[Berzunza]

NC Optional Parameter (bit) 16 bit 7 = 1 will display your missing parameters.

Hello... im looking for the optional parameter list for my okuma lathe, im not sure this is for my machine but i was wondering if you can share your parameter list to me...

Thanks...

and if i did somthing wrong tell me its my first post...

[Jarle]

No optional lists on Okuma like ie. Fanuc.
You need options? Then you need new software.