Raydragon

Got an Answer back from Rockwell Support:   So nothing functional, It's just as you suggested Ken, a component change brought about due to component obsolescence.    edit: they have also added it as a technote now: https://rockwellautomation.custhelp.com/app/answers/detail/a_id/864946

Thanks Ken. You are right, I'm confusing my terminology. It's definitely a Series D however, as printed on the box and side of the processor itself. The only place i have been able to find that references them is in the release notes for Rslogix 500 Version 10 which "supports" these new versions however Version 9 of Logix 500 happily (mis)detects them as the a "Series C, Firmware 10 or later" and works perfectly well.   From the release notes: The automation team is hesitant to install the update to Version 10 at this time , owing to the requirements to update Linx, FT activation etc that comes with it and the potential for breakage associated with updating those. Without doing that it's hard to determine what Series D brings to the table myself, and as you suggest i might just get in contact with Rockwell to find out, as much for my own interest as anything else. In the end I have gone for "suck it and see" and so far so good .. wasn't really expecting any issues but it can't hurt to find out whats changed because as you pointed out there is likely a reason it's jumped to a new series.

Does anyone know what the differences are between a 552 Revision C and a revision D?  ( SLC 5/05) The revision D seems to be quite new and i haven't been able to find any information on the Rockwell website or even google in general what the differences are.  There are significant differences between Revision B and C the relevant ones, for my purposes, mainly around the Ethernet abilities with the C being vastly improved over the B. I'm looking at replacing 2 x B series 552's in a large Factory installation that are really struggling under the messaging load of the environment. I replaced one other one recently with a revision C that has been sitting on a shelf for a (long) while and the improvement was immediate and dramatic and am looking at doing the others now but would like a bit more information on what has changed beforehand as a "suck it and see" approach to replacing it may not go down well with the people that pay my wages if it all goes belly up   In the end it's still a bit like that regardless of any information you may provide in a complex network environment but perhaps someone on here has already located this information and can assist me in finding it?

Now i'm wondering why that didn't occur to me. Thanks, that will be a much easier method for that part of it. Anyone got any suggestions or examples for the other part of my problem? I found a couple of references to FIFO's to do with averaging but didn't really understand how it worked.

Been a while since i have posted here but hoping someone will take pity on me a knock up what are sure to be simple bits of code for the experienced among you. Quite new to Logix 5000, much more familar with Logix 500 but i spent a fair bit of time today trying to knock up what should be some fairly simple calculations and the further I went the uglier it became... Typically i have left my ugly logic at work but i was hoping someone might be able to point me in the right direction without it. There is probably a few simple Controllogix instructions that can do the work of the rubbish i have so far that i don't even know exist Basically i am trying to do a bit of downtime displaying of a machine as well as a couple of rolling average cutting rates calculations. What I want is to be able to get "time since stopped" Hrs, Mins and Secs as 3 integers for starters, and while the machine is running ( cutting at about 8000 parts per Hour) i want to be able to get a couple of Average cutting rates , one covering say a rolling "last hour" and then the same for a longer period, probably between 8 and 12 hours. The Value that gives me the current cutting rate from the actual machine unfortunately doesn't update or zero out when the machine stops, which would obviously stuff up the actual averages so when the machine is off the logic would need to basically "add 0" to the total while the machine remains off i spose? Any help would be a greatly appreciated, Ladder Logic only please ( V18, 19 or 20) as I don't have a Logix 5000 Version capable of anything else on the work machines.

I have been able to track down some more information on the datalink units. The 7000 seems to be genuine bridge and doesn't use any virtual serial ports or anything special unlike the 4500DH+ and the Rep assures me that it should do what i want. 30 Day moneyback guarantee so if it doesn't then can always return it. That unit looks like it might be the way to go, now just got to get someone to pay for it......

Thanks Paul. I am not really all that familiar with the ins and out's of the various RSlinx versions. You saying that by going to a higher level such as OEM of Rslinx that i will be able to get rid of Enterprise altogether. Won't that bugger up Factory Talk View's ability to create paths to devices etc when creating runtime files for PV+ terminals etc? I had an issue with this a while back before i realised i NEEDED Enterprise installed to be able to set the paths. How would having OEM Rslinx change that?. The rest of the features you mention with the Higher versions of Linx are probably things i won't need, or probably can't even use as they are probably control logix specific ( and we have none of that unfortunately ). Also using the serial solution's you mentioned will help in a couple of cases ( I already knew this as we are using a couple of Net-ENI's already and those ones i can set up the trends perfectly.) but some of the processors i want to log data from don't have a free serial port, generally they have been used for connection to PV or PV+ as RS485.

Ok guys, looking to find out what my options are to be able to display some trends on a Workshop PC running Factory talk view/station. We have a Bridging chassis in the workshop beside this PC with an ENBT, DH+/RIO and DH485 card in it. That is all working well and any of the Processors connected to it via Dh+ or Ethernet are browsable with RSlogix 500. I have recently been using FTV ME station to run some extremely basic trends to help in the location of intermittent faults and it has been extremely successful. All the devices i have had to work with so far have been Ethernet connected...until now... Large sections of our plant are connected via DH+ and while i can browse any of the DH+ devices while connected to the Comms rack i cannot set them up for use within FTV studio ( ie as an RSlinx Enterprise driver/ path). I gave Techconect a call and they confirmed that what i am attempting to do ( they referred to it as double browsing) is not supported by Rslinx Enterprise.. dead end.. I have been reading a bit about some Datalink protocol converters like these: http://www.datalinkgateways.com/products_d...lus_profile.htm http://www.datalinkgateways.com/products_dl7000.htm If i understand them correctly i should be able to add one of those converters to the end of my DH+ network and use the Ethernet connection that i SHOULD be able to set up in FTV as an RSlinx Enterprise path.... or am i assuming too much... Anyone got any idea if this will work, or even another solution ( that doesn't involved replacing all the processors with 5/05's)

I have also done numerous relay replacements in Micrologix units, I have done a couple of 1000's and a couple of 1500 ( base units) now. Had enough sense to get work to get a desoldeing station for it though, Got a reasonable one for $300 that works well and makes changing the relays effortless and it has payed for itself many times over even having done the small number of PLC's it has been used on. All the relays i have changed so far have been Omron G6D-1A-NP relays. I believe the NP stands for Nickel plated ( contacts). The most commonly available version of these relays seems to be Silver contact version. I doubt this matters all that much though. One Gotcha though is that some of the ones i have found use 21V VDC coil versions of these relays - not that easy to find. Most however use the normal 24 VDC but it's something to be aware of. I suspect that it wouldn't really with only a 3V difference matter but it was something i had never seen before. The only problem i have found overall with changing the relays lies not in actually replacing the relays, it's being able to disassemble the Micrologix without breaking the plastic housing, They go quite brittle with heat and age which means you have to be extra careful dismantling them.

heh, well there you go, would never have thought of using Youtube to look for PLC or HMI information. Funnily enough i have been having some trouble with the exact issue discussed in the video ( i can check it at home) and if i had been able to view it it may have saved my an hour of frustration talking to Rockwell support

A Youtube link? you trying to rickroll us or something? I can't click on it to check though, Youtube is blocked at work

Got a few SLC racks onsite that all the plastic end plates in them are going extremely brittle due to heat and Oil exposure. I just finished replacing one where the end that is supposed to support the power supply via the retaining screws i can just about crumble up in my hand. I had a bit of a search around and i can't see any part numbers specifically for the plastic bits, has anyone else had any sucess in obtaining them without having to replace the whole rack? We use all the different size racks throughout the site but it doesn't really matter as the parts are interchangeable between them anyway.

Ok, guys, hopefully gonna get hold of a 2nd hand laptop that will run Win XP and gonna try and build that up over time with the eventual aim of it replacing the current win 98 based one. From talking to one of the IT guys they have struck issues before with finding laptops for the department, mainly in the area of serial ports being incompatible. I have read a lot about this already and understand the problem with Real Vs Virtual serial ports etc but i imagine the problems they have been having have been more to do with Win 98 and Syswin not handling the non Hardware based serial ports all that gracefully. Does CX-One work with the majority of serial configurations or is it liable to be just as picky, or is it more a problem with the PLC's themselves causing the issues? Unfortunately i have no idea what sort of laptop i am likely to end up with at this stage , not even a brand as i have seen a variety of different ones scattered around the site, i am hoping the issues are largely moot with CX-One.

Ok, managed to check out the units. Of the Omron stuff there is one C60 series unit ( with Hostlink adapter on the front) As far as i know there is no hand held programmer for this device but it will work ok with Syswin surely? I assume it won't work with CX-One though as it seems to be the big brother of the C20 series. Other than that the rest are CPM1 or CPM2 series with some of them being the later revisions of them ( series A i think??) So it looks like Syswin will still be needed for the old relic until it can be upgraded but the rest should be fine?

Thanks guys, hopefully i'll get a chance to take a walk around and have a look at the gear in the next few days ( probably next week) although from talking to one of the other tradesmen today he mentioned one system requiring some obscure dos based software, not sure if it was an Omron unit or not though. Apparently the machine is due to be upgraded anyway, so one way or another it shouldn't matter if that one is Omron (old or otherwise) as it will be replaced anyway i would hope