Jazz, M91 PLCs and U90Ladder
Talk about issues related to Jazz, M91 PLCs, and the U90Ladder software
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I asked about the ability for the PLC to format the card ages ago, when the corruption of DTs issue arose for me. It still happens occasionally and I stil haven't figured it out. Kratmel is correct in saying about bigger sizes, reinforcing what I was saying about "off the shelf card sizes are getting bigger all the time, with smaller ones that used to be big now not even being available". For ages I have used partition manager programs to manipulate big cards to smaller Fat32 formats. At present it is easily done, but perhaps in the future in might become harder as card systems evolve. Alex, we're not insulting you here, just pointing out an issue that is only going to get worse. The suite needs to be changed to accomodate what a user might encounter through buying an easily sourced, current production type card. Like Kratmel, I have 16Mb CF cards that I still use for some things. But try and buy one these days and it is not possible, so my method of doing images needs some size "fiddling" each time I need to do one. In some ways it is the same as modern computers not having onboard serial ports. It seems that makers only consider the "latest and greatest", conveniently forgetting that a lot of the world still needs a facility that was in very common use only a few years ago. The saying "If it ain't broke, don't fix it", seems to have evolved into "Let's constantly change things and create endless problems for some specialised end users, that they never had a while back". Even my terrific USB-serial converters fall over now and then, something the dedicated ports never do. cheers, Aus -
I seem to recall that there is a read socket status command under the COM>TCP/IP menu -
@Cara Bereck Levy, I can find nothing on this in the Help file. Am I missing it? -
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Hi AlexUT, I know about card and controller capacity limitations and format limitations. Especially about Siemens :) There will be a problem with the small capacity card in the future. It's just a matter of time. Last week I was looking for a new CF 128MB card for the machine (2009). It must be formatted only in FAT. It's now impossible to find them smaller than 4GB. The Unitronics controller now meets the requirements for card use, but 1TB cards are already flooding the market. Therefore, the search for solutions for the use of new large memory cards in controllers will become relevant very quickly. Supported FAT32 File system is limited to 1 primary partition - it is not problem - problem is how to make this one partition on large card.
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