Eurotherm rs232

Bonjour,
J' aimerais acquérir la température de l' eurotherm 2704 avec une communication rs232 en utilisant des vi visa .
Sous MAX j' ai l' erreur 0xBFFF0072.*** la ressource est valide mais VISA ne peut pas actuellement y accéder**
Si quelqu'un a déjà utilisé l' eurotherm 2704 , je sollicite son aide.
Merci
Solved!
Go to Solution.

The communications protocol that Eurotherm uses is modbus so all you need are modbus drivers. The model of the controller is essentially immaterial -- for this aspect at least. You can download modbus drivers from several places.
The other thing to remember is that the protocol is the same regardless of how you communicate with the controller. For example, some controllers have Ethernet interfaces, but use the same modbus protocol.
Mike...
Certified Professional Instructor
Certified LabVIEW Architect
LabVIEW Champion
"... after all, He's not a tame lion..."
Be thinking ahead and mark your dance card for NI Week 2015 now: TS 6139 - Object Oriented First Steps

Similar Messages

CONFIGURATION EUROTHERM 2404 ET FTM7 VIA RS232

Bonjour,
je communique avec des eurotherm 2404 (configuration:9600
bauds,data bits:8,parity:none,stop bits:1,flow control:none)
avec une carte multiport RS232 de chez brainboxes
Lorsque j'ouvre le MAX et que je lance une session visa,
avec un port serie, je dois lui envoyer une commande avec
basic I/O
je lui envoie donc vu que je travaille en modbus un nombre
décimal 8836 qui correspond à une commande (type de segment)cependant il me
renvoie toujours la meme erreur:BFFF0015 (délai de timeout expiré) et peut
importe la commande c'est toujours la meme erreur.
Donc mes questions sont:
ma configuration est elle bonne?
y-a-t il une terminaison de caractère à mettre au bout?
quels commandes puis je lui envoyer pour que je puisse
communiquer avec lui malgré que j'ai toute la documentation nécessaire?
de plus, j'utilise des film monitor thickness (FTM7) de chez boc
edwards pour vérifier l'épaisseur déposée des sources qeu j'ai porté à
évaporation grâce aux eurotherm:
dans le max, j'utilise la configuration qui m'est indiqué
dans la documentation de chez boc edwards c'est a dire
(configuration:4800bauds,data bits:7,parity:even,stop bits:2,flow
control:none), je la sauvegarde avec le bouton save , je lance une session cepedant
lorsque je lui indique une commande indiquée dans la documentation , par
exmeple :RESET<cr>, j'ai toujours la meme erreur BFFF0015.
mes questions sont:
est ce la bonne configuration?
le caractère de terminaison est-il bon?
de plus lorsque j'ouvre le max de nouveau après avoir éteind
mon ordinateur, il m'indique un probleme de conflit entre une configuration
visa de base 9600,8,none,1,none et la configuration windows que je lui ai
indiqué.
pourquoi?

Bonjour,
Lorsque vous programmez un périphérique en VISA à traves
une couche RS 232 l'utilisation de commandes SCPI (Standard Commands for
Programmable Instrumentation) est nécessaire. Cependant il ya d'autre caractères
additionnels à rajouté lorsqu'il ne s'agit pas d'une communication GPIB : Vous
devez rajouter un "line feed" (LF) ou un "carriage return"
(CR).
Pour réaliser cela il ya deux approches différentes :
ajouter explicitement le caractère de terminaison a la fin de chaque commande
que vous enverrez, ou configurer un attribut global a la session VISA afin de
rajouter automatiquement ce caractère.
J'espère vous avoir correctement aiguillé.
Cordialement,
Richard Keromen
National Instruments France
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>> Découvrez, en vidéo, les innovations technologiques réalisées en éco-conception

Eurotherm controller 2604 modbus rs232

Has anyone drivers for a modbus rs232 communication with the 2604 controller?

Hi Tom,
Hopefully this forum post will answer your question and provide you with all the necessary things.
http://forums.ni.com/ni/board/message?board.id=170&message.id=7967&requireLogin=False
Good Luck with it!
Kind Regards,
Joris Donders
National Instruments
Applications Engineering
www.ni.com/support

Eurotherm 2404 RS232

Hello all,
Another day, another problem with my serial connections!
I am trying to log the reading from a Eurotherm 2404 using the driver linked through the NI website (NI Driver). The baud rate, data bits, parity, and stop bits are set at 9600, 7, even, 1, as specified by the instrument I am using. However I cannot get the VIs to work properly, and have traced the error to the VISA read serial. When I try to query the device through MAX, I just get a time out error again.
I have tried both null modem and straight through cables. Does anyone have any other suggesitons for things to try?

Hello,
My name is Ed at National Instruments Technical Support. I understand that you would like the driver that Charlie has used in the original thread to resolve his issues, in the meantime until he replies with this you can alternatively try two sources of drivers and see whether these solve your issues, there is:
1. The NI provided drivers available at http://sine.ni.com/apps/utf8/niid_web_display.model_page?p_model_id=2529;
2. The manufacturer provided drivers, available under downloads->software at http://www.eurotherm.com/products/controllers/single-loop/2400/2404/.
I suggest that you try each of these drivers as these are the most likely to have been used.
I hope that this helps and that one of these drivers resolves your issue, in the mean time i'll research into any other possible drivers and try to find out the compatibility of the drivers with LabVIEW versions. If you have any questions don't hesitate to ask.
Kind Regards,
Ed

Eurotherm 3216 labview error

Hello,
I recently downloaded the euotherm labview driver from ni.com and I am using this USB to RS485 converter http://www.kksystems.com/english/html_files/product_pages/usb485.htm for communication, unfortunately I keep getting this error when using both example VI's.
1. When I use the process value monitoring example vi
Error -1073807339 occurred at VISA Read in Eurotherm 32xx Series.lvlib:Utility MODBUS RTU Receive Message.vi->Eurotherm 32xx Series.lvlib:Utility Read From Register - Floating Point.vi->Eurotherm 32xx Series.lvlib:Utility Read From Register - Float or Int.vi->Eurotherm 32xx Series.lvlib:Read Process Variables.vi->Eurotherm 32xx Series Process Value Monitoring.vi
2. When I use the temperature control monitoring example vi
Error -1073807339 occurred at VISA Read in Eurotherm 32xx Series.lvlib:Utility MODBUS RTU Receive Message.vi->Eurotherm 32xx Series.lvlib:Utility Read From Register - Integers.vi->Eurotherm 32xx Series.lvlib:Utility Read From Register - Float or Int.vi->Eurotherm 32xx Series.lvlib:Configure Instrument Mode.vi->Eurotherm 32xx Series Temperature Control Monitoring.vi
Can someone please help with this?

And did you check that you have the right cable?
rs485 is not equal to rs232 !
you need two wires for sending and receiving and they should be terminated when the distance is long.
Furthermore your rs485 card should switch from send to receive in time.
greetings from the Netherlands

RS232 Output Module - Checksum on part of String

I am running DASYLab 11 and am trying to write a setpoint to a Eurotherm temperature controller via the EI-BISYNCH protocol over RS-232. This requires that I send some control characters and the address of the unit I am commanding, then the some control characters and the new setpoint value, and then an XOR checksum of the second part of the string (control characters + new setpoint). I can't seem to figure out a way to do this, as the /cx format command gives the checksum of the entire string. I tried placing the first part of the string in channel one, the second part and the checksum formatter in channel two, and then selecting sequential output, but that didn't work. Does anyone have any other ideas?
Thanks for your time!!!
Solved!
Go to Solution.

You will need two different strings... what are your strings?
I do have a very happy customer using Eurotherm controllers... but he uses OPC, not RS232.
the help says this:
Checksum
Control Characters
Description
Cross sum
\cq
Adds all bytes before the checksum character including the contained measurement values and sends the cross sum with the string.
If the format definition contains a \c control character, DASYLab makes the cross sum from the beginning of the string to the position of the control character. If the format definition contains several \c characters, DASYLab makes the subsequent cross sums from one checksum character to the next.
CRC test
\cc
Calculates all bytes of the string to be sent with the CRC16 method. DASYLab sends the binary sequence of the CRC test and the binary sequence of the CRC test including the CRC value as the result. The sent binary sequence are not numbers but polynomials.
XOR sum
\cx
Connects all bytes before the checksum character including the contained measurement values with the exclusive-or operator and sends the binary sequence with the character string.
XOR sum with control character suppression
\cy
Executes the same operation as the XOR sum and adds 32 to the result byte if the result byte is smaller than 32.
- cj
Measurement Computing (MCC) has free technical support. Visit www.mccdaq.com and click on the "Support" tab for all support options, including DASYLab.

EUROTHERM 2604

DEAR SIR, I M TRYING TO COMMUNICATE WITH EUROTHERM 2640 CONTROLLER THROUGH NI PCI 8431/8 PORT RS 485 INTERFACE BUT NOT ABLE TO ESTABLISH THE COMMUINACTION . THE PROTOCOL IS MODBUS AND INTERFACE IS EIA RS 485 ( 2 WIRE) ,NULL MODEM CABLE( CROSS CABLE). FOR COMMUNICATING I HAVE SORTED THE TX + AND RX + AND TX- RX- . I HAVE TRIED NI MODBUS LIBRARY FOR COMMUNICATING BUT NOT ABLE TO DO THE SAME. ON SEARCHING THIS FORUM I CAME TO KNOW ABOUT THE OPC CONNECTIVTY IS POSSIBLE. I M TOTALLY CONFUSED DONT KNOW HOW TO PROCEED.

Hi Rahul,The 2604 controller is a vey versatile instrument and you should not have any problems communicating using Serial Modbus or OPC. I am using both on a daily basis to communicate with the controller, the DataSocket Vis together with iTools (iTools OPC server) and our own Serial Modbus vis for Serial Modbus RS232 and EIA485.I have also used the NI Modbus library to communicate a 2604 controller without any problems.Before I assist you any further we need to identify if the problem is in the hardware, (i.e. incorrect wiring) or is in the software,( i.e. incorrect configuration, settings, etc). Therefore can you please give me a detailed diagram of your wiring from the PCI card to the controller including 9 way connector pin numbers and controller comms terminals (i.e. HD, HE, HF.)In addition can you please confirm the following?1) You have a 458 Communcation module plugged in the controller?2) The module appears on the controller comms page?3) You have identical Communication parameters for both the 2604 controller and the PCI card (Baud Rate, Parity, Flow Control)4) You have the same Slave address in the NI Modbus vi as is set on the 2604?RegardsDimitris

Communication avec un eurotherm 2216e

Bonjour,
Je souhaite communiquer avec un eurotherm 2216e (équiper de capteur de pression d'air) par liaison serie RS232.
J'ai utiliser MAX en le configurant avec les bon paramétres (vitesse, bits de données, etc ..), ici en piéce jointe, avec le viSetAttribute mais lorsque que j'envoie la commande " *IDN? " avec le viWrite et que j'essaye lire la réponse avec le viRead, j'obtient toujours l'erreur " BFFF0015 " (erreur d'espiration du timeout, qui est pourtant de 2000ms ....).
Mais j'arrive à communiquer avec l'eurotherm avec Itools...
Labview 2010 (version d'essai) sur PC portable (j'utilise également un transformateur USB/RS232)
Cordialement,
Vincent.
Pièces jointes :
viSetAttribute.txt ‏1 KB

Bonjour,
pouvez-vous détailler votre problématique.
Avez-vous réussi à communiquer avec MAX.
Pouvez-vous poster votre VI.
Avez-vous vérifié les commandes à envoyer à votre appareil ?
Cordialement
Samuel G. | Application Engineer Team Leader
Certified LabVIEW Developer
National Instruments France
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Été de LabVIEW 2014
12 présentations en ligne, du 30 juin au 18 juillet

Eurotherm temperature controler 900EPC

hi,
I am looking for a vi to communicate to a eurotherm
temperature-controler 900EPC.
The VI is to communicate with the controler via RS232 port.
do you have amy suggestions
thanks
martin

Casper,
I think the Info-LabVIEW infrastructure was transplanted last year to http://www.info-labview.org, and the folder archive you are looking for is here on its new filesystem. It appears that there are some Eurotherm driver files are there, as promised.
However, I have the feeling that what is posted there was designed for older models like the 808 and might need substantial modification to work with your model. Here are a few suggestions:
- Compare those files with the driver available on the ni.com/idnet Instrument Driver Library. The NI driver isn't designed for your model either, and is presumably based on the same code as above, but it may represent a more recent evolution.
- Maybe best of all, try to contact known LabVIEW users who have your model. Posting here is good, and will hopefully generate some additional responses. But if you search the Info-LabVIEW discussion archives, you can find some e-mail addresses of specific individuals who have actually modified the drivers above. Examples are here and here.
Regards,
John

Eurotherm 2416 Configuration

Hello,
I try to get a Eurotherm 2416 via RS232 running. I can get the temperature without any problems, but when I like to enter the configuration menu, I recieve an error message, that he can't access the registers.
I am not sure, but where do I enter the passwords? I set the user an the config password to "0" (disable). But it doesn't work.
On the otherhand, no I can change the password with the included VI, but only once. Then I have to set it manually to "0" again.
Up to now, it seems that he run in trouble with the passwords?
any ideas?
Axel
P.S: I used the second example included in the driver package, but I doesn't work.

Thank you for your quick respons.
I am not sure where to select this parameters. The VI's I got from the NI accept only some "magic number" which will be written in some registers. Up to now I didn't find any way to pass a command.
In the example shipped with the driver the init and the selection of the config mode are working. But as soon as some values should be written it failed.
After switching to the config mode the Eurotherm displays
conf
0
and expect to enter the password. Maybe you can explain how I can pass the configuration password. "ET24XX Configuration Password.vi" changes my password only, but the rest produces still errors.
Thanks
Axel

Eurotherm 2216e communication

I plan to purchase a eurotherm 2216e controller. I am not very familar with labview but I want to communicate with this unit. I am not sure if I should get the controller with Modbus or Bisync format. Which is easier to configure? I am using RS232 communication. I need to be able to update a setpoint, update a high and low alarm setpoint as well as the ramp rate.
I am not sure if this is something I should ask the seller (eurotherm).

You have more options if you use Modbus.
1) You can use iTools a configuration and communication software package from Eurotherm. Download available here: http://www.eurotherm.co.uk/products/controllers/itools/ This package will detect the instrument and display all its parameters and their modbus addresses and allow you to change settings and values.
2) If you prefer to use Labview then you can use the Eurotherm 2400 range Labview driver. This can be found in the NI Instrument Driver Library, search for Eurotherm and select 2404.
Alternatively here is the link: http://sine.ni.com/apps/utf8/niid_web_display.model_page?p_model_id=2529
Although this driver is designed for the 24xx range it also supports the 22xx range. The et24xxReadme.html file (Included in the driver) gives more details.
Once you install the vis you can use them to read and write pre configured parameters and create your own application.
If you need other parameters that are not available in the existing vis, you can use the Read and Write vis and enter the modbus addresses for the parameters you want to use.
The “2000 Series MODBUS and EI-BISYNCH Digital Communications Handbook” has all the information you need (modbus addresses, wiring, diagrams, etc). Available for download form: http://www.eurotherm.co.uk/document-library/?ignoreeveryonegroup=0&assetdetesctl1357234=1833&search=...
Dimitris

Eurotherm 2408

Helloall, I want to build a temperature control system using Eurotherm 2408 and Labview 2011. I have downloaded the respective Labview drivers from the following site
http://sine.ni.com/apps/utf8/niid_web_display.download_page?p_id_guid=E3B19B3E971F659CE034080020E748...
I know that by using OPC server i can communicate with Eurotherm 2408 from labview . My doubt is do i need to download any Modbus drivers to establish the communication. It would be of great help if some one provides me with some information on it.Thank you

I can't look at the drivers you mention because the link is broken, but in general all the Eurotherm controllers I have seen did use Modbus as a communications protocol - as well as several others. You also need to verify what type of serial interface your unit has - they have several of those as well. If it has an RS232 port you are good to go and can (if you wish) use LV directly to communicate with the controller. If it has the RS485 interface, you will at the very least need an adapter, or perhaps a serial IO card for the PC.
The thing to remember is the 2408 is an intelligent device so your interactions with it will probably be short and very high-level -- like setting a setpoint or seeing what the current temperature is.
Mike...
Certified Professional Instructor
Certified LabVIEW Architect
LabVIEW Champion
"... after all, He's not a tame lion..."
Be thinking ahead and mark your dance card for NI Week 2015 now: TS 6139 - Object Oriented First Steps

I am receiving the data through the rs232 in labview and i have to store the data in to the word file only if there is a change in the data and we have to scan the data continuasly how can i do that.

i am receiving the data through the rs232 in labview and i have to store the data in to the word or text file only if there is a change in the data. I have to scan the data continuasly. how can i do that. I was able to store the data into the text or word file but could not be able to do it. I am gettting the data from rs232 interms of 0 or 1. and i have to print it only if thereis a change in data from 0 to 1. if i use if-loop , each as much time there is 0 or 1 is there that much time the data gets printed. i dont know how to do this program please help me if anybody knows the answer

I have attatched the vi. Here in this it receives the data from rs232 as string and converted into binery. and indicated in led also normally if the data 1 comes then the led's will be off. suppose if 0 comes the corresponding data status is wrtten into the text file. But here the problem is the same data will be printed many number of times. so i have to make it like if there is a transition from 1 to o then only print it once. how to do it. I am doing this from few weeks please reply if you know the answer immediatly
thanking you
Attachments:
MOTORTESTJIG.vi ‏729 KB

Design problem: RS232 communication

Hi,
I have a design problem for communication with a device via RS232. Since I'm normally a C++ programmer I might just look at the problem from a wrong angle and hope for some hints how to do it in LabVIEW.
The scenario:
A device is communicating with the PC via RS232. The device permanently sends data packets. At the same time, commands can be sent to the device and it returns replies. Data packets and reply packets are arbitrarily mixed, i.e. after sending a command there could be a couple of date packets before the reply comes back but the packets can be distinguished by an identifier.
At least one, ideally several VIs should communicate with the device. Commands should be sent by pressing buttons and the incoming data should be parsed (the packets contain mutliple data streams) and shown on graphs or saved to files.
My initial idea:
Coming from C++ I wanted to build a class for the communication that permanently reads the incoming data and splits it to reply and data packets. This class would then have a function to send out a command and would return the reply or a timeout and it would be possible to register and unregister listeners (I wanted to use queues for this) for the various data streams.
The problems I ran into:
There were a couple but the two most pressing problems were: how could I communicate with the constantly running sample VI (e.g. to stop sampling) and how could I propagate changes to the class to it (e.g. new listeners). Since it is not returning I don't see a good way to implement it as in instance funcion (i.e. pass it the object). I could probably not let the sample function run continously but call it periodically from outside. However I planned to implement the class as a singleton, so it could be used parallely from different VIs.
Is there a best practice for a case like this?
I'm glad about any hints or ideas.
Thanks,
Tobias

tfritz wrote:
Hi,
thanks. Since almost the same thing was suggested to me in a German forum I guess this is really common practice (using one VI with different methods controlled by a queue). It still seems a little "unnatural" for me but my biggest concern (bad interface description) was shattered by the suggestion in the link you sent me to wrap these functions with wrapper VIs, thus caller VIs won't have to deal with the call-by-queue-mechanism. This might also be easier to port to a different implementation later. However I still see the danger that the continously running VI could easily become bloated.
It also requires me to change the way I have looked at VIs until now. In our course they told us that VIs are basically functions. Using this design patterns, the VI becomes more of a module, really (Like a C module implemented in a C-Source file). But I will try it. It sounds as if it could work.
I will still look into the OOP solutions a little more, though. Do I understand you correctly that you wouldn't recommend using LVOOP because it's still buggy? What about dqGOOP for example? This sounds like it could do what I need (however it doesn't seem to implement things like polymorphism, late binding and inheritance so I don't quite see what's so OOP about it. It seems more like programming with structures in C.)
I don't know if LVOOP is buggy or not. I think early on it was buggy and things have improved in recent versions. I have read that it doesn't have all the features that you would have in OOP like C. I wouldn't recommend it only because I'm not familiar with it at all. I can't recommend something that I'm not comfortable with. If you go that route, plan on spending time in these forums and in LAVA to reading up on what others have done. I haven't hard of dqGOOP.
But back to your suggestion. I still have a couple of questions:
- How do you return values from the module? Would you use a queue for that as well?
- Where would the parameter queue be held (created and passed to the VI)
I would store all of these in a functional global variable. This is the VI that stores data in shift registers. Ben's action engine nugget is an advancement on that. This allows for both the calling VI and the parallel running subVI to get and set the data as needed. It runs quickly so neither process should be forced to wait while the other VI is doing its thing.
- My VI has to be constantly sampling and this shouldn't be interrupted too long by other functions as adding a listener. However both functionalities have to access the same kind of data. Is there an easy way to parallelize this? Would the sampling be a case in the case diagram that's always used if no command was sent to the VI or would it somehow run parallely? Yes. There are a couple of ways of doing this. One would be for the dequeue to have a timeout function. In the event the dequeue times out, you run the code that is doing the acquisition. I think a better method is that the code that does the acquisition enqueues its own command again to the end of the queue. Let's say that is command A. So when case A finishes, it enqueues A, which seeds itself to run again. So if nothing else comes into the queue, it just executes A , A, A, A. But let's say another section of code needs to do something such as command B. It will slip B into the queue while A is executing. So you would A, B, then A again, because A would get slipped back into the queue when the first A finishes, but B has already been put in while the first A was running.
- Would it be possible to make the VI reentrant and in this way use it simultaneously on different COM ports (using different parameter queues as well)? I'm not sure if I will need this but it would be neat if it could work.
I think you could do this. It may be a case where the VI is saved as a template (.vit) and you initiate it multiple times. I haven't needed to do this before, so I'm afraid I can't provide any details or useful tips.
Well, I will fool around some more. Thanks so much for your help. This is kind of exciting since the concepts are quite new for me. Btw, is there something like an academic theory (computer science) for LabVIEW? I came across functional languages in university but data flow languages are still a new concept for me.
Tobias
tfritz wrote:
Another question about the "dynamically starting" of the VI:
How is the path handled? Is it guaranteed that it always takes the VI from the project or does it just search for the first VI by that name it finds in the file structure? Does this still work when building an .exe from the project? What happens if the VI is already running? Can you test for this?
While I'm at it: is there a way to stop LabVIEW from searching for subVIs it can't find when openin a VI? This resulted in very unexpected behaviour sometimes where it would find the VI somewhere else (with the same name but maybe an older version).
In my case, I just had the path hardcoded. It is my only instance, I'm not planning on moving the VI's. If you don't have the path, it will take a VI by that name if it's in memory. If it isn't in memory, it starts searching relative to the calling VI's path. One thing I know, if you are dealing with relative paths, a subVI has a different relative path in an .exe as opposed to the development environment. The name of the .exe becomes a folder. So in development, if your sub VI is mySubVI.vi. In an executable, its path is MyExe.exe\MySubVI.vi
For all of this, I recommend searching the forums to get more details.
If it is searching for a VI, you can hit ignore. But of course you'd have to do it before it finds it. When you are dealing with versioning issues, I recommend making a backup copy of the entire directory structure elsewhere. Some location where it shouldn't stumble across it.

AT Commands over Bluetooth RS232 Connection

Hi all and thank you in advance.
I am trying hard to locate security related information about the following. If I establish an RS232 connection with a mobile phone through Bluetooth, is it possible then to utilize that connection to issue AT commands to the mobile phone in order to invoke the cellular modem? I have the impression that under MIDP such functionality is deliberately restricted for security reasons. Is this true?
PS.I know there are similar posts in the forum but non of them has been answered so I’m giving it a try.
Once again... thank you.

seanfisher, welcome to the forum. Please don't post in threads that are long dead. This question was asked 3½ years ago and it's hardly likely that Habib9, who hasn't visited these forums in the last 2½ years, is still waiting for an answer.
I'm locking this thread now and blocking your post.
db

Eurotherm rs232

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