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RS232 help


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#1
ohheck

ohheck

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I have a CNC Mill that utilizes a 25pin RS232 input to recieve milling instructions from a seperate desktop computer. My problem is that this old computer is shot. I have been unable to find a new computer that has a 25pin RS232 plug-in. I'm not very computer savvy and sure could use some help or suggestions. Thanks in advance.
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#2
Jack123

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01-Ohheck-[25-pin RS232 Adapter]-27th MAR-2007

Ohheck – Welcome to – Geeks to Go

Try using a – [b]USB to Serial DB9 with 25-pin RS-232 Adapter

http://www.mittoni.c...ter-p-2296.html

http://www.microbarn...source=gadwords

photo -01_RS232_USB_Adapter.jpg Connectors -01_Adapter_Plug.jpg

Jack123

Edited by Jack123, 27 March 2007 - 10:01 PM.

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#3
ohheck

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Jack123. The DB9 to USB and the DB25 Adapter looks like it will do the trick. Will there be any loss in data transfer speed?? The mill accepts 1k bytes at one time, performs that portion of the milling program, then asks for the next 1k bytes and so on. Rather a slow process, but it does work. Thanks for your help.
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#4
Jack123

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02-Ohheck-[25-pin RS232 Adapter]-28th MAR-2007

input to recieve milling instructions from a seperate desktop computer. My problem is that this old computer is shot.


Sorry, I did not ask before Need info on old PC - My suggestion may need USB 2.0 PCI Card added if USB Capability is lacking - Needed following info on PC -

1. Desktop Manufacturer
2. Model –
3. Interface capabilities – IEE 1394 – Ethernet
4. OS
5. Was a package with CNC Mill -

Will there be any loss in data transfer speed?? The mill accepts 1k bytes at one time, performs that portion of the milling program, then asks for the next 1k bytes and so on. Rather a slow process, but it does work


Speed ?? 1 Kbyte?? – Need to consider factors - + the above info on old PC and PC new replacement??

1. CNC Manufacturer
2. Model Number
3. Sales Rep / Company
4. Maintenance Program or Contract
5. Age of CNC Mill
6. Production schedule – Quantity of machines
7. Computer used – OS -
8. Type of Interface
9. Need Interface Upgrade
10. Networking a set of CNC Machines
11. CNC Programmers
12. Productivity expectations
13. $$$
14. Machine maintenance
15. Plans of expanding or purchasing new machines

What is your capacity on this issue – Owner – Manager – Production Foreman – Operator – Maintenance – Programmer – Sales – Customer – Consultant – Production Manager –

– Use of Adapter Cable was – The Quick & immediate fix – Here is research material for long term prescription

CNC Machine -
http://en.wikipedia.org/wiki/CNC

CNC Data Rate Transfer
http://www.mikron-ac...1698..html?&L=1

CNC Machine Interface
http://www.roygbiv.c...ucts/xmc_mi.htm

PCI Express RS-232 Serial & Parallel IEEE 1284
http://www.synchrote...llel-io_01.html

Serial RS-232 transfer
http://www.beyondlog...rial/serial.htm

USB Transfer rates
http://docs.info.app...ml?artnum=24531

Extra Reading
http://news.thomasnet.com/news/3284
http://news.thomasne...tory/512001/rss
http://www.exefind.c...-transfer-rate/
http://www.labtronic...CFRtCgQodzFPQRA
http://www.easyadapters.com/

Jack123 -

Edited by Jack123, 28 March 2007 - 07:31 AM.

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#5
ohheck

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Jack123. Some info for you. The mill is a Supermax Crusader built in 1987, with Series M 3 Axis Anilam CNC Control. This machine is in a very small independent shop (1 employee who is the owner) and is not networked to any other equipment. The old computer had Win98 as the OS and was not a package with the mill. However, it was destroyed due to flooding while stored. The need for automated computer input to the mill is very infrequent due to this being a small shop and the type of work done. Most of the milling done is accomplished by simple manual programming directly to the Anilam and works quite well for our purposes. The new computer is as follows....Compaq, OS WinVista, Celeron D 3.3ghz, 160gb 7200rpm HD, 1gb DDR2 SDRAM, 6 USB 2.0. I hope this helps. Thanks for your quick replies.

Edited by ohheck, 28 March 2007 - 11:06 AM.

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#6
Jack123

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03-Ohheck-[25-pin RS232 Adapter]-28th MAR-2007

The old computer had Win98 as the OS and was not a package with the mill.


Well – the USB–RS-232 Adapter – should work. You only appear to be replacing – WIN 98 PC Interface – I thought you might be talking pre 1987 –

Is customer supplying data input media – As long as that was compatible to WIN 98 – Should be fine -

Good Luck –

Jack123 -

Edited by Jack123, 29 March 2007 - 04:28 AM.

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#7
ohheck

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Jack123. The program for the work is being supplied by the person who originally owned and loaded the program into the computer that was destroyed. The owner of the program says no problem with using it on the new computer. Anyway, I appreciate your help and your solution to the RS232 interface. Thanks again. Ohheck.
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