valerio81

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Posts posted by valerio81

  1. Posted

    Hey all,

     

    long time without posting, I don't know if i'm writing in the right place.

     

    I have some old PLCs S7-300 ( and a couple of S7-200) that I would connect to the same general network in order to see all data from a general SCADA (I'm thinking about Ignition but could be WinCC etc).

     

    First problem is that few of them don't have an Ethernet Card (still old MPI) and I'm searching for a converter.

    I've found something on internet that I could install, probably no big issues on this side.

     

    Main problem is that others have an Ethernet connection but they are programmed to work on their own network (indipendent machine) and I couldn't change all IP addresses.

    I need probably a Gateway (eWon??) but I would understand better how it works.

    Any suggestion?

     

    Thank you in advance for your help!!

  2. Posted

    Thank you everybody for helpful suggestions. We are probably going to try it nex months, so I let you know by myself too! Anyway I already installed Demo mode on my linux OS and it works good!

  3. Posted

    Hi there, I heard about "Ignition" as new kind of modern multiplatform SCADA. It is web based, it looks interesting, easy to use and strictly connected with DB/MES world. But I had since now a feedback of people using it. Anybody has any kind of experience on it? What do you think about it? Thanks in advance.

  4. Posted · Edited by valerio81

    Hello everybody, I'm not sure about the correct section but I try to ask you something. I'm using a system with a GPRS router ( with a SIM, VPN, dynDNS, etc.) Actually this modem is not working well, sometimes it disconnects and it's not able to disconnect. Moreover sometimes services like VPN, after 2-3 weeks of uptime fails and they doesn't work. So actually I'm searching for another product, better industrial one. I would like something not too expensive ( i paid the actual one about 150-200 dollars). Any suggestion? I need the ethernet port because my PLC is communicating with a server with a TCP protocol. Thank you in advance!! Regards Valerio

  5. Posted

    i found this on the net http://www.myomron.com/index.php?action=kb&article=1396 seems interesting except that i have some errors compiling and the fact that i just need to read, not write anyone used this example? thanks

  6. Posted

    Hi there, Actually I'm using an Omron V500 reader in serial to a SCU board. I would like to use it in Ethernet. I have a ETN21 and a Moxa NPORT 5110 Serial-TCP Server. Actually I have a trigger, I enable the reading and I wait in the SCU serial port the message from reader. I want to do the same, but waiting the answer in a ETN21 socket . I would like to understand how it works , if you have suggestions and it there are FB just for reading, keeping opened the socket. Another question is how to simulate from a PC the traffic of Reader ( send TCP packet ) because I have not the reader here and I would like to test program ( i just have the ETN21) Thank you in advance! Regards

  8. Posted

    Hi there, upgrading version from 5.2 there is a new system to use "Variable Tags". Now you have to declare first a cluster and then relatives tags. It's not just load 5.2 to 7.2 version. I hope this helps! Bye

  9. Posted

    Hi there, I try to explain my strange problem. In a machine we have a CJ1M PLC + ETN21 + SCU21 + many Digital I/O. 2 Omron Barcode Readers ( V500 ) are connected to SCU21. The first with standard RS232 ( less the 10 meters), the second using 2 RS232-485 converter ( galvanic separation included). We have other 2 barcode readers connected to a serialToEthernet server (Moxa) and the 2 serial ports of CPU connected to other 2 serialToEthernet server (Moxa). The plant was working good for 2 years but in the last 3 months we burnt 4 SCU21 input ( sometimes from first scanner, sometimes from the second one). We tried to put a input filter on PLC power supplier ( PA202), we tried to disconnect ground in the connector from cable coming from readers. The strange thing is that only the SCU21 have problem. We bought other 2 SCU21, we tried to keep one reader in one and the second in the other one. Actually we are thinking that the problem can be on ground coming to PLC power supplier ( and thinking that SCU21 is more sensible to net problems...) But we have last input avaiable on the SCU, we will try in this way, keeping floating tension on PLC power supplier. But we have also to think to a solution for the future if also this try goes wrong. I'm thinking to connect the 2 readers to other 2 serialToEthernet server (Moxa) and eliminate the SCU21. We actually have an ETN21 and we know that we can use sockets connection but...how can we do?? We still keep the hardware triggering to start barcode reading. But we never tried that before, is just a Send-Receive connection?? Any advide/suggestion/example? Thank you very much!! Valerio

  10. Posted

    Hi there, is there any way to program the scanner and use it without to send a string? Probably is better to work like V500, always waiting string, not sending, just triggering reader with hardware input. If you have to send a trigger string you need of course the command list from motorola.

  11. Posted · Edited by valerio81

    Thank you very much! I already did this kind of connection in the past between two ETN21 but I was thinking that CJ2M onboard ethernet is not equivalent to ETN21. Is it??Any difference?? Thanks again! *** edit *** I've seen that onboard ethernet does not support socket opening, that's the difference I read about in the past

  12. Posted

    Hi there, I have a question for you all. Is it possible to create an ethernet connection between 2 CPU CJ2M through their onboard ethernet card? I would like to share some DM words between the 2 CPUs. Thanks! Valerio

  14. Posted

    What you mean by that? Do I need a special EtherNet/IP card on V1000 in this configuration? And with CIF01 on CJ2M is possible to do something? Actually is the way I would like to work. By now I try to check your file.! thank you! Valerio

  15. Posted

    Hi there, I'm buying a new CJ2M and I have to command 3 V1000 drivers. The cheaper solution is to buy a serial for CJ2M and connect it to V1000 in Modbus. But I know that I have to write lot of software because there are not FB as in the system "CJ1M + SCU+ V1000" Is it true? Anyone has a suggestion? It's better to buy a SCU for this system too or there are any FB already done for this kind of application? Thanks a lot in advance

  17. Posted

    Hi all, I have a new plant where I'll have card access. I have to use 2 kinds of reader. One RFID and one magnetic/chip ( like credit card ). I mean one for one plant and one for another. I don't know very well how they work. I know that I have a SoftPLC with Codesys where I have a USB Device connection, an Ethernet Card and a Modbus net on serial port. Have you any suggestion on which product I can use for that? I would like to use USB if possible, or ethernet! Thank you a lot! Valerio P.S: which difference between USB Host and USB Device?

  18. Posted

    Hi there, anyone of you is experienced with pc104 standard? A customer asks me to program it, but i don't know how to start. I think it works under WinCE or XP Embedded. Is there a typical language for each vendor (like PLC programming) or have I to use only C or VBasic? Thanks Valerio

  19. Posted

    Hello Everybody, I'm new on RFID field and i would like to have a suggestion. In my configuration I use OMRON but it's a general question so i write here. I need to read datas from a RFID tag (I want a tag like credit card i.e, not industrial tags) and trasmit to PLC through Serial. Anyone has experience on that? My system is a kind of parking where people enter using his own tag and where they can charge minutes of parking or only enter (and I calculate how many minutes they can park) I've seen that Omron has his system but is too expensive for no-industrial situation. Thank you all for future answers!!! Regards

  20. Posted

    Hi there, I'm using 2 Omron Dyalox Industrial PC with 2GB CF Card. This memory card has 2 NTFS Partitions, one for OS (WinXP embedded) and one for datas. I installed Citect SCADA(prgram files on C, project fils on D) because I want to use it as supervision for that plant. But here I have a problem. Sometimes I find C or D partitions formatted or damaged. I solved the problem on C using EWF DOS command but I can't do the same on D so sometimes i need to download again all projects/datas. In this plant i have UPS and people that uses it knows very well the procedure of swithing off. I can't understand what can be the problem. Hardware of PC? Memory Card? Software?? I think that industrial PC like Siemens or other i've used in the past never had this kind of problem. I only had a similar problem with another Omron Dyalox but i solved it using only C in EWF mode. But I cant do the same in this case because i have no enough space avaiable. By now my customer asks me to solve it but I have no solution except to change PC... Any suggestion??? Thanks Valerio

  21. Posted

    thanks Chris, it works good! I have another question, i think last one:-) How can I read, for example last 4 rows? You think is ok to read ID column and keep higher value as last one and then make a query reading values from MAXID-4 to MAXID ? Or there is a simpler query? It's very funny to learn this new language:-D Thanks

  22. Posted

    Thanks. I found this function to read actual used tags CitectInfo("General", "", 29) The result of this funcion is the sum of all tags working actually on the plant? In example:when i start working I have zero and step by step, calling and using variables, this increases? Thanks again!

  23. Posted

    Hi all. I have a simple question but i don't find a solution... In the past when I used Citect v6.1, after program compilation I had a screen with used tags. It's possible to have it too on V7? Probably i dont remember the correct setting. Im coming crazy:helpme: thanks!!!!

  25. Posted

    Hi all, i'm using for a new project, a connection to a SQL database. I used in the past the connection to Access DB adding each minute a new line with lot of Citect Tags to do some reports. Now, in this project, i need to read every second (or 5 seconds maybe) last row and save the 3 parameters of the last row in 3 variables on CitectSCADA. the exaple could be like this ID Name Code Value 1 N_1 C_1 V_1 2 N_2 C_2 V_2 3 N_3 C_3 V_3 4 N_4 C_4 V_4 the customer add a row everytime he changes Name, Code and Value (example a new order) and i should read last information until the customer changes it again, adding another new line Have you any advice? I dont know very well how to use MS SQL query. Thank you Valerio