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Showing results for tags 'Data Table'.
Found 13 results
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Hello, I need to add two columns to an existing Data Table, in VisiLogic this can be done without losing values, I'm not sure how it works in UniLogic, I remember once editing it and all values went to 0. Can I add a member to Data Table struct and retaining values in old columns? I would back up old table, but problem is that I can't read the values in online mode and back them up, I get this error: Connection to plc was over Ethernet, ladder works normally in online mode so I wouldn't say it's a connection issue. If new columns cannot be added without losing values, my se
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Im looking for some assistance in a program I have set up for a scheduled heat / AC program. The way it is set up, the user has four time setting options to be able to change the temperature four times throughout the day. I am using the digital time wheels with an RTC struct for the way to input the time settings and then converting the RTC to an ASCII string so that the user can see all of the settings in the data table which is displayed on screen. The problem I am having is when I extract the time strings back out of the data table I have no way to compare to the System RTC to trigger th
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I have a question regarding Data Tables and the "retained" option. I have some rather large tables, to big to have them all as retained. But I still want to keep the values in case of Power failure. In your help function it is noted that Data Tables reside the SD card.. Still there is an option if they should be "retained". But is it not retained anyway if it is stored in the SD? Will they always be recovered from the SD card at power up? Or does it have to be done using the "store to file" and "load from file" functions? In my application is acceptable to store the tables periodically
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What is the maximum no of rows that we can assign to in a vision 130. In my case I am getting restricted at 9000
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good morning i need to write a row in a temporary table in the ram memory this table contains one row and 12 columns, the first one is a long integer entred and the second is a string, both are entered with the keybord of the plc and the rest are integer with 100 velues in each cell and those are mesurment of voltage from the analog input one mesurment every 0.1 seconds during 100 seconds and i want those mesurments to be triggered by a button. once finished it has to coppy that row to a bigger table with the same columns but lets say 1000 rows in the sd cardso i can later use that informati -
Hello, I'm having problem with vision V700 PLC. Reading data from multiple slaves kinda understable but I need to display data from data table in HMI. How can I do that? Reading different material didn't help, maybe I missed something. Thank you in advance. -
Has some one worked with Gcode to feed data table, to use in PTO function? -
I have to retrieve and import a CSV file to a DTI. There is no problem about the FTP section, but when I try to convert a CSV file to an UDTF file I have got an error if the CSV file has more than 127 lines. Is there a way to resolve this issue ? My final CSV file to import will maybe have near of 500 lines. Thanks for reading
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Hi, everyone I would like to know if you can give me ideas about how to do the following program. It is a table which I want to see in the oplc screen Samba 7 This table has to be filled as specified in ASTM D1709 (Plastic sheets impact resistance evaluation) 1)So at first point I assume a initial value of weight that could cause the fault of a specific sheet , and the variable weight (to select between 5% and 15% of initial weight, it has to be 5gr multiple) and test the firs sheet. 2) If the first sheet fault, for the following sheet to test i have to decrease the weight (i
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I need a completely automated solution for sending a .csv (or .txt) file to a V350 that can then be imported into a Data Table. This has to happen without human intervention. The .csv file would be in the same format as the Data Table. Ideally the V350 would be able to grab a file from an FTP server and write it to SD Card, then read the file and write it to a Data Table. I'm surprised that there is not a solution like this, as it would be a common requirement to read in a recipe in automated fashion for example. Any ideas? Many thanks .... Kurt -
Hi all, I have been trying to use the "Find value in DTI column" to find a value in a column, then return a row full of values from the row that the value is found in. The data table has loaded fine (I checked it using the Online mode) and it contains values of temperature and pressure. I can get a row of data out of it (and display it) using the "Read row from DTI" function. I can’t, however, use the "Find value in DTI column" function as I imagine it was intended. I was expecting to give it a value, say a temperature I was measuring (all three columns of data are of the Real d
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Is there any automated way to get data from a database such as SQL into a V350 in an automated way? It would be nice to go from an external database into a Data Table. Anyone with experience in this area?
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I have successfully pulled data from a data table to Excel with DataXport. I have pushed one line of Excel data to a group of Mi's in the V350 with UniDDE. I cannot seem to push an entire data table's worth of data from Excel to a data table. Is it really simple and I am just missing it? I have also successfully pushed Excel files onto a Micro SD card but I can't get them from the card to a data table. I really need my V350 to be able to receive data downloads. Any help would be greatly appreciated. Jim
