Some serial drivers for lab stuff

[mooseo]

Hi Sébastien,
I don't have any idea if this will help, but I just spent a bunch of time figuring out how to talk to my pH meter, and was making the silly mistake of using the wrong serial cable... because the meter is more commonly used to drive a printer, it has the same pin settings as the computer. Rather than a normal serial cable, I had to build a crossover cable, then everything worked.

hope this is of some use,
mike

[gmpony]

Sebastien, I think mike is right you probably need a cross-over cable.
Gianmarco

[tinnitus]

hello every one,

Thank you for your messages, I just come back to office ( bad flu)  and  i  going to look
 at this cable more precisely.

I keep you informed of discoveries

Sébastien




Message Edité par tinnitus le 01-18-2008 03:26 AM

[tinnitus]

Hi everyone,

I finaly found the cause of dysfunction

I succeed to reach a real mettler technicien (after three attempts) who gave me more information

For me : the cable must be  straight (original cable) but command sound like that " K_nb"

i.e: K for keyboard and nb the number associated with the key ex Read = K 4

He promissed me to send me the complete book

I'm waiting for  

Tank you for all

See you soon

Sébastien

[tinnitus]

I just received the " command set reference manual" in pdf format for sevenmulti, for those who would be interested :

[tinnitus]

What a *ù$^$^ù*

If someone simply succeed to send a command and recover a response  he can give me a sign  because

i'm a little bit exasperate trying without results.

The commands work perfectly using hyperterminal but no way via labview, however that look extremely simple !!!!!!!!!

i use a serial configure box, a write, a read , a close ........ nothing

Sincerely

Sébastien

[Dennis_Knutson]

Instead of just complaining that you can't get something to work, why don't you post an example of what you've tried? The actual VI with data (not empty front panel controls) is the best thing to post. My guess is that you've used the wrong format for the data or termination character but reeally need to see your code.

[tinnitus]

you have funny manner of seeing, I can understand that my English irritates the ears , for the remainder...

So, here a capture of diag and front panel and the vi file:

The command i tried is "IS" , command are only in caps, IS is a simple command that return instrument state (doc page 😎

aucun=none.

Best regards

Sébastien

[Dennis_Knutson]

Section 1.1 of the  manual says that each command has to be terminated with CR/LF. You are not doing this as I suspected. The characters are on the string pallete and you can add them with the concantanate with string funciton or right click on your string constant and select '\' Codes Display. The '\' Codes for CR and LF are \r and \n.

[tinnitus]

I read second time my message 16, my aim was not to grumble against forumers but I have not a great control of english, so may be french expressions take a bad way with translation. I was angry after myself, the documentation which I put 1 month to obtain and the material of which I can dispose only 2* 2h per week and a heap of other things that I have to do. It was in no case to insult the forumers, so if some understood this way, I beg your pardon.

Thank you for the easy way “\”, I think that indeed that comes from the crlf. I could assure you only Wednesday when I will have the device

Best regards

Sébastien




Message Edité par tinnitus le 01-28-2008 08:27 AM