Connecting a PLC Siemens S7-300 NI OPC Server

Similar Questions

• OPC Server Connect slow, L32E

  6.7.1 using lookout, NOR for CompactLogix 5300, (AB L32E) OPC server, I noticed that after 300 labels, after a cold computer starts, it will take about 10-15 minutes for Lookout display data of up to 14 PLC (L32E), in real time.

  Now that I'm at 1 400 tags, read-only, it will take about 45 minutes after a boot cold for Lookout start playback of all the tags in real-time. I noticed a sharp increase in traffic network also after 45 min. With only a few writing tags that I use, I will enter a new value, the new value entered displays about 5-10 minutes later. If I'm waiting for 45 minutes, then I get written and the instant play sometimes.

  Any thoughts?

  This correction has done the job. AB L32E 15, 1025 + tags. Everything works very well.

  «Open the property of the unit and check the Mode of Protocol on the tab Options of Logix.» If ' Non-Blocking logic ' or 'Blocking of logic', replace 'Symbolic' and see if there is better performance. »

• connect a controller without opc Server

  Hi, I can connect a controller for labview 7.1 (to send and read the data) without an opc server, using only one cable rs232 of the plc to the pc.

  Hi syd_b,

  Yes, VISA read and write operations are essentially functions, you need to use. Please refer to the shipping of serial communication examples. Again I have not the slightest idea how complex the DF-1 protocol is to implement. It could be a much better deal to buy an OPC server or a ready to use the library instead of reinventing the wheel, but of course it depends on your personal situation.

  Kind regards

  Jochen

• cRIO communication as a PLC with NOR-OPC-Server

  Hello

  I have the task to implement communication between multiple cRIO and NOR-OPC-server. The OPC OR server should act as a data manager for a complex interface.

  I tried the NO-OPC Server and I managed to communicate with the server OPC-NOR as OPC-Client in Windows using a server IO and shared Variables. But the task is to do it on a cRIO. I tried to open a data from a cRIO socket connection to the NOR-OPC-server using a specific URL by using "DataSocket select URL.vi." But as long I do not activate the simulation in the OPC Server - OR-I get errors on the data socket connection opening. If I activate the simulation, which is not the solution, I can write data without error, but the quick OR-OPC-Server Client sees no change for the data label.

  I have the feeling that I am not a good way to get this working. Is there anyone with experience with this? Is data taken one possible at all? It is possible at all? I have to put in place a cRIO-OPC-driver?

  Thank you.

  Hello

  I found the solution in this article:

  http://www.NI.com/white-paper/7451/de#H36

  Thx for your help.

• DSC: Connection to the 3rd party OPC Server

  I had this work with LabVIEW 2011 and Win XP...  After update I can't make it work...   Now with LabVIEW 2012 and Win 7, the server is now upgraded to Win 7 system.

  I'm reading a commercial server OPC of Yokogawa variables.  I can connect to the server.  I can see the variables and create a related shared variable.  But when I access the variable fails.

  Dave,

  My problem is very basic.  Go to the administrator in the 'control panel' the instructions say.  It does not exist in Windows 7.  I'm stuck.  Here is the complete procedure as given by the very useful Dylan Caswell.

  Here are the instructions for Windows 7 (I'll put this on the forum so that others can see or change the KB if it works)

  1. press on the Start button and Type: Component Services
  2. click on "Component Services" under programs
  3. in the left Section of "Component Services" expand: ' Component Services > computers > my computer > DCOM Config.

  
  4. search for the name of your OPC Server (in your case should be in the sense of: "Yokogawa Exaopc Data Access Server")
  4A (not sure if this is necessary, but I also repeated for the other server "Yokogawa Exaopc data access server OPC Link1")
  5. right click and select properties of your OPC Server

  6. click on the identity of the Properties window tab
  7. Select "interactive user."
  8. click OK, and then restart the computer

  This does not solve the problem, so I went to the second stage.

  If this does not work, let's try the other method, as described in the KB but for Windows 7:

  1. press on the Start button and Type: Services
  2. Select 'Services' under programs
  3. in the right part of the window, sort by name by clicking on the 'Name' column, and then select: NEITHER engine Variable
  4. right click NI Variable engine and go to properties
  5. Select the log tab, click this account:
  6. Select an account that is an administrator
  7. Select OK and restart the computer.

  There is a 'right click' option to stop and start the service.  I don't reboot but simply stopped the service, numbered 5 and restarted the service.

  Immediately my VI running began to show valid numbers!

• How to install the OPC Server with the Application Setup

  Hi all,

  I make the datalogging progam in the PLC via modbus communication using the OPC server.

  1. I got configer the opc via the Project Explorer client some time it works perfectly, but when I run it by the next day, he cannot communicate with an OPC server but the OPC server is to communicate with the PLC. When I right click on the properties of the customer e/s in the exploer project opc and make any change and still run the application it works where is the problem.

  2. the second problem is by building the installer that will be installered to my PC targate OPC server. Bacuse I had installed the application on the computer target just for testing but OPC Server havn't installed even if there is no option for adding the OPC while bulding server.

  Serdar, SALVATION

  Thanks for the reply I saw your example, your idea is ok, but if I have more then 100 and with different types of data tag then where is the problem to manage all these tags.

  Now, what I had done I took the express to create vi or configer server I/O and give the name of the process even as file name as opcdemomo and same server name reference in the Project Explorer and restart and scream in low tow and three times it works I havn't get any problem.but which is not the right method. 

• Problems using Modbus TCP accessible by NI OPC Server

  Hello

  I use OPC OR server to access a module of measure. The accumulation is pretty easy, my system with NI OPC, modbus door and the module connected with RS485.

  There is a thermocouple to provide me with some examples of data.

  But there is the point. I know, my data is in the records to be kept and I can access, but each type of data, I'm train does not bring my outgoing, any other (sometimes huge with e34, sometimes very small as e - 13...) my data sort, I do not understand.

  The type provided by the module must be single precision.

  The address used to be lookout is 41000 Labview in is just 999 and in the 'target' - OPC Server I get some values to 401000 but not useful.

  I also get the same results to access the 301000 into different types.

  Read/write or read-only is equal.

  I tried to tell my mutual FUND values are strings, floats, words, BCD, and all other possible means what mutual FUNDS offered to me, but nothing results in a usable temperature.

  I hope that I missed something and it might suggest.

  Cateros

  Finally, the issue is resolved.

  We tried a few others setting for the device in NI OPC modbus Modbus function 06 use simple written record. Using the Modbus 05 functions for single coil written and use default Modbus byte order.

  These parameters were not default and I tried some combinations but bad not these.

  As the tag data type, we tried anyway and got the content of the Register Holding data [0].

  Now it works, and the value is the casting of Holding register [0] and [1] Holding and I got the temperature.

  Already you are quite right, thanks again.

  Cateros

• Running the Citadel on HMI and OPC Server OR

  Hello!

  I want to use computers to screen HMI NI TPC 2215 and it interface with a GE Fanuc PLC using OPC Server and save the data in a database of the Citadel.

  I would like to know if the HMI OR supports a full edge of the blown OPC Server and a database of the Citadel. I read that OPC Server and Citadel require a Windows operating system, but since the HMI runs a WinCE (or a WES7) so I'm not sure.

  OK... got my answer here

  http://www.NI.com/white-paper/13047/en

  http://sine.NI.com/DS/app/doc/p/ID/DS-408/lang/en

• OPC Server run only a few Variables - DSC

  Hello

  System: Win7, LabView2010 SP1, DSC

  I have a (Bachmann M1) SPS connected to the PC via an OPC server. I have a draft LabView 100 Variables. These Variables a figure on a HyperTrend a saved in an ASCII file. It works very well, most of the time

  But after a restart of the SPS it gives reading tower, about 25% of the Variables. In the control of the OPC tool, I can see that the OPC server is running and all Variables are very well. I also see in the NOR-DSM. Here, I can see that the value of the Variables is "NAN". After a restart of the process library, it works fine until the next reboot of the SPS.

  I have this combination of Hard - and Software component (SPS - OPC - PC) which works well on 10 other Test applications. Also after a reboot of the SPS. I also run the same software. I only change the address of the OPC Server and must import the reactive power. But the rest is the same.

  If anbody else have the same problem and maybe a solution for this problem?

  THX Martin

  Hi Martin,

  The LabVIEW Datalogging and Supervisory Control (DSC) Module offers servers OPC Client IO can communicate with any server that implements the OPC Foundation OPC server interface, which is a standard based on Microsoft COM.

  You should check the DCOM configuration for a local OPC server before connect you to a server OPC Client IO on the OPC server. National Instruments recommends configuring the server OPC runs with an identity of the interactive user.

• 2011 OPC Server V5.5 in Lookout 6.6

  Hello

  I use Lookout 6.6 with the OPC 2011 V5.5 server.

  The OR - the server is accessible via Lookout and the integrated OPC Quick Client. But if I use another Client such as the OPC data-spy or PROFILAB,

  the server is not accessible, the name of the server appears in the list, but is not accessible. Other OPC servers installed on my PC are accessible by each customer. Do I need to have a special license for the OPC Server OR provided with the software of Lookout 6.6? I am using Windows 7 32-bit edition.

  Thank you for all the advice

  Greetings

  Claude

  Mike's right. We don't allow connection to the OPC Server OR the other OPC clients.

• Application built with an OPC Server

  Hello everyone
  I build the application on the development using wich S7 computer - connected to the OPC Server 1200
  and I want to build the application to run the VI on another PC without installing labview, however when I finished to build the application with the installer and install the application on another PC it cannot connect to shared variables so I installed an opc Server ON this machine and add the server to the software mutual FUND that contains tags and variables
  but it is not also connect to the opc Server
  So how do you run the application on another PC with an opc Server!
  How the VI to use a specific opc server on this PC with no labview?

  Hello

  What do you call the OPC Server? You are creating a mutual FUND of LabVIEW client and linking to the shared variable? If this is the case while you use the LabVIEW DSC module and it works very well in the development environment.

  However, every time that you deploy (creation of executable or installer) a VI using DSC module, you must have a license to run on each computer that runs the executable file. http://sine.NI.com/NIPs/CDs/view/p/lang/en/NID/210561

  the alternative would be to use the socket api in LabVIEW to call the server.the attached VI OR OPC illustrates how.

  I hope this helps!

• Is there a maximum number of clients to one opc Server opc

  I created a server using this tutorial:

  http://digital.NI.com/public.nsf/allkb/CC9CDD577F041786862572120061EB5A

  I am noto using NI OPC Server (I think) and I'm using DSC noto (obviously)

  Is there a maximum number of customers mutual funds for an opc server created in this way?

  I have LabVIEW 2009 now but the main code was written in LabVIEW 8.6.

  Thank you

  OLA.

  Neste caso, a limitacao para a Criação customers also estara watch a ability of sua rede e MATERIAL, or seja, na o maximo para um indefinido e OPC Server clients number theory.

  E claro what puder use OPC server o senhor NOR e o DSC module, a confibilidade e estabilidade of sua aumentarao, POI software esses size adicionam tools ao LabVIEW as facilitam a programcao of codes para este projeto tipo.

  Atenciosamente.

  Hello

  In this case, the maximum number of clients t connect to an OPC server is limited by the configuration of the network and equipment, in other words, in theory, this maximum number is undefined.

  It is also true that if you can use the OPC server of NOR and the DSC Module, your application reliability and stability increases, because this two software add tools in LabVIEW that facilitate deploying code for this kind of project.

  Sincerely.

• OPC Server OR

  Can I create an OPC Server OR with simulated signals (digital 0 or 1)? I'm looking on the internet for the tutorial, but just found how to do with a real device such as PLC...

  Thank you

  Create your "simulating" VI with boolean, then the Wizard (Tools-> DSC Module-> VI Server Assistant)

  The use of custom servers based on the VI/o (DSC Module)

  Andrey.

• On the screen that it says "the proxy server refuses connections" Firefox is configured to use a proxy server refusing connections. The result is no internet.

  the proxy server refuses connections"Firefox is configured to use a proxy server refusing connections. The result is no internet

  You are welcome

• Can not find driver for CompactLogix L32E in OPC Server OR

  Anyone know how to contact the CompactLogix L32E Lookout 6.5.

  It doesn't seem to be a driver for it in the OPC server from OR.  Can someone point me in the right direction.

  I thought that the 5300 ENI:CompactLogix would work, but it does not work.

  Thanks to the folks at Kepware. I was able to get this working for CompactLogix L32E.

  Step 1: In the OPC Server OR create a new channel. The channel name can be anything you want.

  Step 2: Device driver will be ControlLogix Ethernet.  You can also enable diagnostics if you want.

  Step 3: Network adapter. I used default.

  Step 4: Write only the latest values.  Service at 10. (These are the default settings and are recommended.)

  Step 5: Finish new channels configuration

  Step 6: Click the icon to create the new device

  Step 7: The name of the device can be selected.

  Step 8: Select model of device in this case CompactLogix 5300

  Step 9: Device for me ID been XXX.XXX.XXX.XXX, 1, 0 IP address (note the 1 redirects the path at the bottom of basket.) 0 to the location where the processor is)

  Step 9: Device synchronization.  Leave the default values.

  Step 10: Automatic demotion leave unchecked.

  Step 11: Leave default values do not generate start remove create and enable the subgroups

  Step 12: Port and watchdogs with default settings

  Step 13: Options of the project leave default. (In my case, I've changed to short because that's what most of my tags was)

  Step 14: Create tagname of the device.

  Step 14: Finishing Device setup.

  You now have two options.

  Option 1: Start creating labels according to your needs. (This is what I did)

  Option 2: Newly created device right click and select property.  Then select the database creation and click auto create.

  Go to the belvedere and create the new driver.

  Select Client OPC

  The server name will be on the menu drop down. National Instruments: NIOPCServers

  Click OK

  You must be done and smiling.