Industrial Communications

cancel
Showing results for 
Search instead for 
Did you mean: 

how can I connect LabView with a PLC S7-300?

I want to use LabView with a PLC S7-300. I think I can use a PC card or RS 232 with a HMI interface.What is the difference? I think I need an OPC server (I don´t know who sell it, National Instruments or Siemens) and I don´t know if I need anything else than LabView6i.
Thank you.
0 Kudos
Message 1 of 42
(30,924 Views)
Hi Alicia,

What I believe you need is a Profibus interface with its associated OPC server.
It will let you map the registers in the PLC and access them directly from LabVIEW. NI sells and supports both of these.

Ben
Retired Senior Automation Systems Architect with Data Science Automation LabVIEW Champion Knight of NI and Prepper LinkedIn Profile YouTube Channel
0 Kudos
Message 2 of 42
(30,907 Views)
Alicia,

Ben's answer is absolutely correct. "Profibus" is the key word here, and a search of "profibus" from ni.com will provide quite a bit of information. I went ahead and pulled out the main items below. Follow the link below for product catalog info on the plug-in cards and interface software (the OPC Server) required.

http://sine.ni.com/apps/we/nioc.vp?lang=US&pc=bymn&cid=1315

For a step-by-step configuration tutorial, please follow this link:

http://zone.ni.com/devzone/devzoneweb.nsf/opendoc?openagent&BA7CB7B0FFBEA12286256A32005B2BEA&cat=103057DD6D5AE678862568630016C98C

And finally, for examples on how to communicate with this OPC Server, or any other OPC Server for that matter, LabVIEW has some shipping examples. From LabVIEW, goto "Help >
> Communication >> Datasocket OPC". A good one here is the "Demo OPC Client" program, which uses a software OPC Demo Server that installs with LabVIEW. You could pull that open and work with the LabVIEW programming now before you even have the hardware.

Regards,
Greg Caesar
National Instruments,
Applications Engineer
0 Kudos
Message 3 of 42
(30,909 Views)
Alicia do you speaks spanish ?

i have informations about, conecting of labview and PLC's Siemens.
0 Kudos
Message 4 of 42
(30,912 Views)
Hi,
OPC is a quite powerful solution or not?
I am trying to install a " low cost" system at the moment with Siemens "PRODAVE" software and a serial connector cable.
You can read and write the PLC registers by use of a DLL. It is the first time I do this, so please comment it.

Rgds,
Bernhard
0 Kudos
Message 5 of 42
(30,911 Views)
Rodolfo:

Cordial saludo,
En realidad estoy muy interesado en conectar varios S7-200 para interactuar
con mi aplicación desarrollada en Labview 7. Agradecería a Rodolfo cualquier
información al respecto.

A la fecha he encontrado alternativas con tarjetas de APPLICOM, o mediante
interfaces HMI, pero mi intención es utilizar la menor cantidad de cosas
para lograr una solución bien económica.

Cordial saludo

Mauricio

"rodolfo" escribió en el mensaje
news:5065000000050000005A3E0000-1027480788000@exchange.ni.com...
> Alicia do you speaks spanish ?
>
> i have informations about, conecting of labview and PLC's Siemens.
Mauricio Vidal
VIDAL & ASTUDILLO Ltda.
http://www.vidalastudillo.com
0 Kudos
Message 6 of 42
(30,909 Views)
Hola

Tengo la misma inquietud y me gustaria saber donde puedo encontrar informacion al respecto

Gracias.
0 Kudos
Message 7 of 42
(30,030 Views)
Lo que se necesita es una interface Profibus con su respectivo servidor de OPC, esto le permitira "mapear" los registros de su PLC para poderlos accesar directamente desde LabVIEW, En la siguiente direccion podra encontrar un tutorial que habla de como configurar su sistema paso a paso:

http://zone.ni.com/devzone/devzoneweb.nsf/opendoc?openagent&BA7CB7B0FFBEA12286256A32005B2BEA&cat=103057DD6D5AE678862568630016C98C

Para ver como se programa la comunicacion con un OPC server en LabVIEW, puede ver los ejemplos que vienen con LabVIEW (Como el de "NI Demo OPC Client.vi")
0 Kudos
Message 8 of 42
(29,996 Views)
hola:


tengo casi la misma duda quiesiera saber que software y hardware necesito para poder conectar un PLC CPU314C-2DP con el sistema scada LabVIEW y los pasos a seguir. En lo posible quisiera saber algun tipo de solucion en la que no necesite adquirir nuevo hardware.

gracias

att: migue
0 Kudos
Message 9 of 42
(29,893 Views)
La respuesta seria la misma que dio Javier Olea, ya que el CPU314C-2DP es un PLC S7-3000. Los siguientes enlaces pudieran ser útiles.


http://zone.ni.com/devzone/conceptd.nsf/webmain/cc021cd15890283286256a33006eba74
http://digital.ni.com/public.nsf/3efedde4322fef19862567740067f3cc/e1e8217c676e56e4862569fb00734615?OpenDocument


Tania Lozoya
National Instruments
0 Kudos
Message 10 of 42
(28,860 Views)