Way to communicate between PC and tracer and edger

[tamagotchi]

Hi,

I would like to communicate with a tracer (Essilor Phi 3D for example) and a edger (Nidek 9090 for example) with a PC, and I'd like to get the more information possible to do this. :hammer:

Does anybody know where to get information and specifications about this ?

Thanks.

[shanbaum]

Contact your friendly Gerber Coburn sales representative, who will be happy to help you.

[Chris Ryser]

Contact your friendly Gerber Coburn sales representative, who will be happy to help you.

Name, address, e-mail, website ???????????????????????

[shanbaum]

Sorry, I thought it was general knowledge.


http://www.gerbercoburn.com/00-wwloc.htm

[tamagotchi]

Hello,

I'm back, and I've found some very useful information about what I wanted to do. I can now communicate with my tracer (making the stylus up and down, rotate, ...), the problem is to get back the trace data, I need to talk with it, as a dialog (me, it, me, it, me, it and so on). The problem is that I cannot generate the CRC used in the dialog, so the machine always answer me <NAK>, because my CRC is not the good one for it.

I found a C example in the ISO specs for this machine, but I can't even understand C language, and I'd like to have the step by step explanation about it.

Someone has it ?

Thanks.:hammer:

[shanbaum]

Hello,

I'm back, and I've found some very useful information about what I wanted to do. I can now communicate with my tracer (making the stylus up and down, rotate, ...), the problem is to get back the trace data, I need to talk with it, as a dialog (me, it, me, it, me, it and so on). The problem is that I cannot generate the CRC used in the dialog, so the machine always answer me <NAK>, because my CRC is not the good one for it.

I found a C example in the ISO specs for this machine, but I can't even understand C language, and I'd like to have the step by step explanation about it.

Someone has it ?

Thanks.:hammer:

If the machine's interface is ISO 16284, and actually complies with it, you should be able to simply not send the CRC record at all, just send the <RS> followed immediately by the <GS>.

If that doesn't work - in what language are you writing your interface?

[tamagotchi]

If the machine's interface is ISO 16284, and actually complies with it, you should be able to simply not send the CRC record at all, just send the <RS> followed immediately by the <GS>.

If that doesn't work - in what language are you writing your interface?

is the <RS> followed very immediatly by <GS> ? because when there is a CRC, the syntax is

<RS>CRC=mycrc<CR><LF><GS>...

will it be <RS><GS> or <RS><CR><LF><GS> ??

Thanks.

[shanbaum]

is the <RS> followed very immediatly by <GS> ? because when there is a CRC, the syntax is

<RS>CRC=mycrc<CR><LF><GS>...

will it be <RS><GS> or <RS><CR><LF><GS> ??

Thanks.

It is <RS><GS>.

[tamagotchi]

OK. And is there a <CR><LF> after <RS><GS> ?

[shanbaum]

OK. And is there a <CR><LF> after <RS><GS> ?

No, the <CR><LF> is a record separator. <GS> is not a record, it marks the end of the packet.

[allstar]

How did you get on with this?

I work with Phi tracers a lot and I know finding information about them can be hard.

[JERRY HUANG]

Wow! Where can I learn this portion of optical??

[allstar]

what do you want to know?

[JERRY HUANG]

<RS>CRC=mycrc<CR><LF><GS>...

will it be <RS><GS> or <RS><CR><LF><GS>

-----------------------------------------------

What do they mean??

[shanbaum]

<RS>CRC=mycrc<CR><LF><GS>...

will it be <RS><GS> or <RS><CR><LF><GS>

-----------------------------------------------

What do they mean??

These are representations of data exchanges under the "OMA" (a/k/a "VCA", "ISO 16284") protocol. The bracketed mnemonics (e.g., "<RS>") are ASCII characters that are used to indicate the beginnings and ends of packets, among other things.

[JERRY HUANG]

Hi shanbaum,

What is the difference between VCA and OMA?? What is the difference between Braud rate 9600 and 19200?? Why they must be matched in order to hook up the communication??

Another question---what is the difference between Innovation and DVI??

Thanks

Jerry

[shanbaum]

Hi shanbaum,

What is the difference between Braud rate 9600 and 19200?? Why they must be matched in order to hook up the communication??

Another question---what is the difference between Innovation and DVI??

Thanks

Jerry

What is the difference between VCA and OMA??

Time. The Optical Manufacturer's Association ("OMA") became the Optical Industry Association (strangely, still "OMA") which became the Vision Council of America ("VCA").

http://www.visionsite.org/s_vision/s...ID=555&DID=710

The data communications standard used by most lab equipment (all new lab equipment) was developed by a group working under the auspices of the OMA. The ISO version of the standard is intended to be identical, but because the highly-formalized ISO process is slower than the more ad hoc VCA process, the ISO version is usually one version behind the VCA's. We encourage everyone to work from the current VCA version.


What is the difference between Braud rate 9600 and 19200?? Why they must be matched in order to hook up the communication??

Here's a tutorial on the standard PC serial interface (which is an "RS-232" or "EIA-232" interface). See the section on "Signal Timing" (it's there, but the link to it in the Table of Contents doesn't work; just scroll down).

http://www.camiresearch.com/Data_Com..._standard.html

Another question---what is the difference between Innovation and DVI??

Well, for one thing, Innovations is newer.