dellae

MrPLC Member
  • Content count

    22
  • Joined

  • Last visited

Community Reputation

0 Neutral

About dellae

  • Rank
    Sparky

Contact Methods

  • Website URL http://www.ceeindustries.com
  • ICQ 0

Profile Information

  • Location Papatoetoe
  • Country New Zealand
  1. abb pm564 eth to wonderware

    You need to use ABB software PS501 to configure the ABB PLC communications port.
  2. VFD Regenerative Braking

    Regen (4 Quadrant control) - Look at ABB, they have being doing it for a number of years. They have an ACS800-17 (WWW.ABB.com/drives) range designed to do exactly what you are talking about, also used on crane/hoist systems. I have done it on a timber carriage (150kW), currently involved in a crane upgrade in a steel mill using 90kW. ABB have inbuilt firmware for all the common applications so setup is relatively straight forward. It is much more efficient than mechanical braking. The brake limit is the power of the motor connected to the load. Whatever power your motor can output (say 100kW) is the same as it can absorb.
  3. DCS vs PLC

    In this day and age - absolutely nothing. DCS is a hangover from the old days (10 years + ago) when PLCs were rather simple limited systems. Limited in the amount of I/O they could attach and the networking capability. Today most mainstream PLCs can do everything a DCS could do. About the only real difference is that a DCS was really a PLC and SCADA supplied as an integrated system. DCS engineers would have you believe otherwise - if you asked them to explain and they were truthful - it would sound just like a modern PLC. DCS = Distributed Control System. PLC = Programmable Logic Controller. A DCS contains PLCs - A PLC can be a DCS (B&R being a good example). PLCs were considered a single controller with local I/O only. A DCS was generally multiple PLCs connected via a network and most often included SCADA. When I refer to PLCs I am talking about modern systems that use the full IEC language set, not those stuck on Ladder Diagram.
  4. Wago PLC

    A good all purpose little PLC, good bang for buck Uses CodeSys for programming - all 6 IEC languages, nice simple programming enviroment - I use ST & CFC. Has a good range of interface modules. My favorite is the 750-871 ethernet with builtin 2 port switch.
  5. ABB DriveWindow 2.30 Communications

    The system must be connected and drive powered on before you start drivewindow - otherwise you need to disconnect then reconnect. Have you tried swapping the fibre optic cable connection at the RUSB-02 - the connection identification is typical ABB. The drivewindow 2.30 software must be installed BEFORE you ever plug the RUSB-02 unit into the PC otherwise it will fail.
  6. Any users of Eplan P8 ?

    Hi Guys, I bought ePlan Pro and the maint support because I was sick of struggling with ACad. Trouble is I am still struggling with ePlan. It is a pitty there is not REAL support site for a product that does appear to be the top of its class. Maybe if enough of us users band together we could prise some better documentation out of Rittal. I have been truing to buy the reference book mentioned but so far no luck.
  7. What version of CodeSys are you using? Looks like your 'Taget Settings' my be incorrect which is very common with new installations of CodeSys. There is a fix for this, PM me for email and I will send you the file which should fix this.
  8. SCADA POLL

    Adroit - my current favorite as it was easy to get setup and has a good price structure for small projects, also has very good PLC driver support. Has nice built in features like Web support and auto graphic publish to JPEG. Documentation is poor. Graphic development is similar to RSView. RSView - Is just way too expensive and has very poor 3rd party driver support, but is a good fit in an all AB environment. iFix, (Fix, Fix Demacs), Citect - old and tired, WinCC - Even more proprietary than RSView - just to dang hard to bother with.
  9. B & R Automation - What's the big secret?

    I have started to use this system. I have the PLC embeded in the HMI and X20 I/O on Ethernet (Powerlink). Good quality product, competitive pricing and the local support is good. Being IEC 61131-6 + C means you can reuse a lot of code from other systems with only minor modifications. I have used every major system on the market and some odd balls and this is way better than most. It is way way better than Siemens & Rockwell (Programming environment) although they don't have the range of systems. However they have the main ones well covered. Their processors are much faster than Control-Logix. Networks are; Ethernet, DeviceNet, Profibus, CAN, X2X (their extendable remote backplane, like ControlNet but only better) They also have a SCADA system (runs on Linux).
  10. CX-ONE - how to use it?

    Yes, that works if; All rung comments in the old project have place holders in the CPU code. eg; if someone has deleted a rung comment or a rung that has a comment associated, when you try to do your import it will not line up. It's as though the internal pointers are thrown into disarray, as it mixes up the code and comments in some sort of random pattern and this is when you have to do a rung by rung copy & paste of the rung comments. (I say random but there probably is some pattern to it.)
  11. CX-ONE - how to use it?

    Yes I have used this. If rung comments were added, (and there was no allocation for them in the old project) when you do an import the code and comments are not aligned correctly. If there was an allocation for a rung comment (imbedded in program) even it is empty, then the import works ok. I had to do a section by section import at a time.
  12. CX-ONE - how to use it?

    If you upload into a new project yes you get comments & tags, but you do not get section names or rung comments. I see in the online help it makes mention of the fact that you can select what to up/download, but I can not find the selection in the menu (only greyed out) so I presume I must have a setting wrong somewhere. With the new CJ1 projects our better programmers save all documentation on the cpu which is good. Unfortunatly, some programmers feel they can hold you to ransom even when they have been paid on an hourly rate to undertake work. I am slowly getting rid of the older C200 machines so it is becomming less of an issue.
  13. Mechanical Press Two Hand Controls

    On Safety Rated PLCs. (SIL3 / CAT4 applications) For AB CLX you have to use a companion safety processor (1756-LSP) and safety rated I/O modules (devicenet). I believe these were specificlly designed for the USA motor industry (so our AB rep told me). OK if you are already using a CLX on the machine. Very large safety systems (100s of I/O) Other options are: Omron/SICK (NE1A) - my current favourite programmed in FBD and filling in tag fields (no import/export) Compact and big enough for most machine jobs. Use safety Devicenet modules (Omron, SICK, AB) Can communicate to a standard devicenet master on the same network (ie: coexists) EASLAN /NHP Brick type Programmed by filling in boxes in an electronic sheet and typing tag-names. Very German Network by safe profibus The tell me they are working on bringing this into the 21st centruy Slightly higher cost than Omron Schneider (XPSMC32X) Single block - really is just a bunch of configurable safety relays. 16 or 32 I/Ps 6 SSR, 4 Relay O/P Programmed by a mixture of FBD and tag filling Good and low cost for small machine where you would use more than 3 but less than 8 conventional safety relays. PILZ (3000 series etc) Really just an S5 safety rated Programmed in IL, ladder Very German Can import/export the tag database using excel If I really wanted to waste that much money I would put in an AB. Has its own proprietary bus, very very very poor networking capabilities to other systems. (it's as though they don't want you to use it with any other system) There are others, but I don't believe they are really in the race. They seem to be just reincarnations of smart safety relays. Just my personnel opinions and experience from designing/installing safety systems.
  14. REMOTE I/O SLAVES

    Personally I like Beckhoff & Pheonix Contact. (I have used Devicenet but not profibus). All you need is the eds file, open the project with CX-Integrator, import the .EDS, add the module to the network (from the device tree) and assign the module address. Once you do this the device I/O is available at the Omron predetermined CIO addresses.
  15. CX-ONE - how to use it?

    Hi, I was OT with this in another thread and couldn't sort it so have started a new one. Just to recap I have taken over an existing plant with a reasonable number of omron systems. (PLCs servo etc) ( I am not Omron experienced) It has had a number of different programmers working across the site and they have not left backups of what they have done. We have CX-One v6.1 licensed. I have in most cases old copys of systems code, when I go online the compare fails as expected. When the compare fails you are dropped offline and then your only option is to Upload into a new project. What I want to do is mesh the existing old documented project code with the existing CPU running undocumented code so I have at least a reasonable documented project backup of what exists. In the other thread I was told to 'ctrl+shift+T' to download. The trouble is this wipes out the project that you have open and downloads the undocumented code from the cpu. I know there are other systems that this works in so was hoping I could do it with Omron. So far I have been copying and pasting but this is very slow, especially for some of the larger systems on site. Does anyone know if it is possible to do this and if so how?