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12/6/2014 12:08 PM | |
Posts: 21 Rating: (0) |
Hello All ! [snip] ... But still it has a problem which they've not notices but i know it :-P i.e They have a backed up systems so there is no power down ever but the problem is i can't store all my recipes in PLC as its retentive memory is so low (2 Kbytes) and my running recipe also looses its STEPS and PARAMETERS when there is power loss. I've checked and i'm able to retain (save) only one recipe data. I've thought about using MC (Memory card) but i don't think it has what i need because it can only be used as a transfer card or program card where as i need both at the same time and also help me that how do i copy a recipe from all the recipes stored in MC to PLC memory and how to save a new recipe into the MC. Thanks in advance.
--------- new subject after splitting from Working with Recipes [S7-1200 (1214) & KTP 600 ] |
Last edited by: Min_Moderator at: 12/8/2014 9:28 AMLast edited by: CS Moderator at: 12/7/2014 7:54 PMsplitting |
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12/8/2014 6:00 PM | |
Posts: 5225 Rating: (1192) |
Hi there. VERY brave of you to go tell the Boss - - Good for you!.. even if you have to sort the problem. 1. How to update this firmware ? Short answer: You can not upgrade. Firmware 4 is all new hardware. For FW4 hardware you have to have TIA version 13 also. [ouch!] (Ask if you want the long answer) 2. Is 10 kb enough for my work ? The attached file shows you how you can see how much retentive memory you have used. You can read the value from your program and multiply it with what you need to make retentive. 3. Is there any way to save my PLC DBs to Hmi Data records ? Good suggestion that you have! Unluckily the amount of data you are currently planning on using may be a problem (opinion). To be more accurate you should tell us which panels you can make use of. Or you can look at the specifications yourself... each HMI has its own unique limit on amount of recipes and parameters. 4. Is it possible to tansfer a recipe from memory card to PLC ? The nice thing about FW4 PLC is that it now has ready made commands to write and read data records to the MMC type memory card. I have not used it myself and doubt on the limitations and doubt on if you can extract it to a computer. I am of the opinion that you can make a backup copy to a PC, but the PC can not process it. 5. Any other way of saving my recipes (DBs) permanently ? It should be possible to save and retrieve data records to.from MMC type memory card using READ_DBL and WRITE_DBL commands. I think your PLC firmare 2.2 should have these commands. I have not used them myself yet. What I can say to you is that the handling of the recipes are going to be different (sorry). You remember what was said earlier about using a DB for each recipe? (answer by eisenpferdreiter in your previous post) This becomes more complicated to get working than what you have now. But if all else fails you can go deeper into this option. Another option would be to link the PLC in some way to a network. A PC or such device can then load the values into the PLC when it is needed. It will take effort for you to get going. In my hmuble opinion it will be less hassle if you can get your hands on software and hardware to have the program run on a FW4 PLC. - provided that the 10kB is enough. @huggy_d1: Please could you help filling in the blanks. Especially points 4 and 5. Thank you. Best regards. w |
12/10/2014 5:29 PM | |
Posts: 5225 Rating: (1192) |
Hi. 1. How to update this firmware ? As the S7-1200 range developped there are 3 version "islands" which can not be crossed over by a updating the firmware. The 3 version "islands" differ in hardware. These "islands" are: a) V1.0 to V2.2 - - you can upgrade up to V2.2 b) V3.0 c) V4.0 As said before the hardware capabilities are different. Plainly also for your case, the built-in memory capacity of the PLC will only change when the hardware version changes.. this has nothing to do with firmware. 3.Is there any way to save my PLC DBs to Hmi Data records ? The KTP600 is not going to work for you. Look at [LINK1] and search for "Number of recipes" You can also look at the other HMIs that is available for your software: [LINK2] There are also the 2nd generation HMI range that works with TIA13 Basic: [LINK3] Dig into these before continuing your thoughts. Greetings. w |
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