6/14/2011 2:01 PM | |
Joined: 3/25/2008 Last visit: 1/28/2022 Posts: 232 Rating: (20) |
Hello dear RandomCoder. If the lower cost is what you are loking for, and you do not need to put your PLC inside a cabinet, may be you can consider to choose decentral periferie CPU's. Some of them, have the same performance than a S7-315 CPU; have a lock to: IM-154-8 Also with lower performance: IM151-8 I hope this helps some how, my best regards. |
Last edited by: TEBANCH at: 6/14/2011 2:03 PMTypos Keep working! |
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6/14/2011 2:25 PM | |
Joined: 3/18/2008 Last visit: 12/8/2023 Posts: 1750 Rating: (272) |
Dear Umencho, I agree with you. According to me,S7300 PLC seems ok. |
VANDE MATARAM..... |
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6/14/2011 3:41 PM | |
Joined: 10/7/2005 Last visit: 9/23/2024 Posts: 3022 Rating: (1054)
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Hello RandomCoder to start with, S7-1200's dosadly NOT support STL (and never will from what I gather). SCL will be available for them soon, but it still requires a rewrite of your logic As such I'd personally go for the IM151-8 as TEBANCHsuggested which will give you all that you need for your application at possibly the lowest price for a 300 solution. As you need to add an HMI to it though, I am going to play the Devil's advocate here and suggest a few PC based automation alternatives. WinAC MP277 package Panel PC 477B-HMI/RTX In that case you'd have to add only ET200 I/O's to complete your system and it may be overall more cost effective than the IM151-8 based system. Note that I would normally not consider any of the above "Soft PLC" packages asI have yet to be convinced that PC based automation is the way of the future. Nonetheless, it may fit your bill. I hope this helps |
Last edited by: fritz at: 6/15/2011 3:37 PMupdated links to point to latest release notes Cheers |
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6/14/2011 4:56 PM | |
Joined: 3/21/2006 Last visit: 9/10/2024 Posts: 10228 Rating: (1181) |
What do you mean with Integrated panels? For the panel you will need a WinCC Flex. Take a look at How do you configure a connection between WinCC flexible Runtime (PC or Panel) and a SIMATIC S7-300 / S7-400 via Industrial Ethernet? Sorry, if I "went" in wrong direction. Best regards, Hristo Mihalev |
6/14/2011 9:14 PM | |
Posts: 947 Rating: (45) |
Hi RandomCoder I see as alternative s7-400- s7 -mec with WinAC rtx 2010. But not workmultiprocessor. But now, when the distributed processing is not very important. As nearest perspective - s7-1500 |
Last edited by: gre_m at: 6/14/2011 9:16 PMLast edited by: gre_m at: 6/14/2011 9:15 PM |
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6/15/2011 12:54 AM | |
Joined: 8/16/2010 Last visit: 7/8/2024 Posts: 50 Rating: (8) |
It's been a very long day, and I've confused myself with WinCC and WinAC but after lots of reading I think I've got it sussed now. My understanding is that WinCC is used to program the HMI (Buttons/Numeric Feilds/Alarms/Recipies etc) and WinAC is thesoftware used to control the process via I/O on ProfiNet for example. However I'm still unclear about WinCC and it's licensing based on the number of Tags. HaveI completely misunderstood something I'm new to Siemens, having only used Pro-tool until now, and I expected WinCC to be a newer version of this. I've ordered an M3 Field PG which is due to arrive very soon and so hopefully I'll get to play with WinCC and all may become clearer. But I expected to be able to program a touch panel on the Field PG and just download it into the panel with the only restriction on tags being set by the panel that I choose to use. Does the number of 'Power Tags' only apply if wanting to utilise SCADA? A very useful resource that I've found listing all of the SIMATIC controllers in one condensed brochure can be found here... https://www.automation.siemens.com/salesmaterial-as/brochure/en/brochure_simatic-controller_en.pdf?HTTPS=REDIR As for the S7-1500 suggested by gre_m, I've not heard of this before and a quick search gave very limited results. Is this a new product line that is still being developed? At the moment I'm quite excited at the prospect of using an integrated panel (by that I mean a Panel with WinAC installed) as the processing speed and abillity to install the required I/O using ET200 modules seems ideal for my application. It might even be more suitable than the S7-400 I've previously used on the 40 bank machine! Thanks, RandomCoder |
6/15/2011 1:15 AM | |
Joined: 10/7/2005 Last visit: 9/23/2024 Posts: 3022 Rating: (1054)
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Hello RandomCoder The WinAC(Windows Automation Controller) that is partMP as well the Panel PCis a so called "Soft PLC" that does offer all the functionality that an S7-400 has. You use Step 7 to program it just like you woudl program a "real" PLC. The latest WinAC RTX F version can even be used for Distributed Safety. Note that the term WINLC (Windows Logic Controller) is sometimes also used and means the same thing. WinACdoes come in two flavours, the "normal" one(also bundled withthe MP as it runs under WinCE) and anRTX version (bundled with the Panel PC as it runs under Windows XP incl. XP embeeded). The RTX (Real Time Extension) is more deterministic as it runs under its own Real Time Kernel anddoes not rely on the grace of Windows thread handlingfor execution time allocation. The advantage of the mentioned bundles is that they also come with WinCC flexible so you get everything (i.e. Panel, WinAC, WinCC flex RT) at a typical quite attractive price and all that lefts to do is to add the ET200 I/O's. The technical spec and more info that shoud help you to do your "homework" to find out if this the "right fit" for your applicationcan be found in themanuals and below are a few links to them: SIMATIC WinAC MP 2008 SIMATIC Windows Automation Center RTX WinAC RTX 2009 SIMATIC Windows Automation Center RTX WinAC RTX (F) 2010 I hope this helps |
Cheers |
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