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Recent content by knowledgeconsumer

  1. knowledgeconsumer

    bar code readers - DS41

    Does anyone use datalogic barcode readers, in particular the DS41 type. These are becoming obsolete at the moment and were are looking to upgrade ours. We have trialed the later revisions of this model but have encountered similar problems to the older ones. the issues are not label quality...
  2. knowledgeconsumer

    ControlNet, adding new nodes !!

    here's what happened when making the changes.... i connected the extra nodes onto the network, disconneting the endof line resister didnt cause any problems. I placed the PLC 5 that the IO was exclusive to in program mode, left the rest in run. Went online to controlnet with version 7...
  3. knowledgeconsumer

    ControlNet, adding new nodes !!

    tanx for the feedback, im aware of the networx nessesity for configuring.im not going to reschedule the whole network because changes only affect one plc so ill only place that one plc in program mode, leave the rest in run and merge the controlnet changes when im finished. what i need to know...
  4. knowledgeconsumer

    ControlNet, adding new nodes !!

    Hi Guys, im adding four extra nodes to my controlnet network. theres currently 25 nodes and 5 PLC 580's on it at present. my question is this, is it ok to just disconnect the last point in the link(node 25) and add these extra four nodes on the link and then reconnectup and replace the endof...
  5. knowledgeconsumer

    Data from PLC to SQL tables

    Tanx for the feedbak, i need to know specifically how to set up the sql side of it. Whats needed to communicate between both ? do they route through rslinx protocol. Has anyone got a simple example i could see, this would be extremely helpful.
  6. knowledgeconsumer

    Data from PLC to SQL tables

    Im looking to get data from a PLC and send it to a database in sql. I'll be using an allen bradley PLC5 80C type controller. Is all the work for this on the sql side or does the PLC have much to do other than present the information ?
  7. knowledgeconsumer

    ControlLogix download issue

    Thanks for the info, Please explain clearing the keepers.We have multiple controlnet links(5 in all). This has happened on link 2 and 5. Both times defaulting another PLC5/80 on the link for no reason. I will try saving all PLC5/80 processors on same link before downloading to controllogix and...
  8. knowledgeconsumer

    ControlLogix download issue

    Hi, We are currently upgrading our PLC 5/80C 1.5 processors to ControlLogix L63. The problem is that when we download to the Controllogix, it kills a PLC5/80 on the same controlnet link. In no particular order either ! It clears the memory of a PLC 5 and faults it. Pretty odd, but we thought it...
  9. knowledgeconsumer

    Devicenet SDN modules

    The SDN will rotate around the node that has faulted with an error code of 78 and the node number(22 in this case).
  10. knowledgeconsumer

    Devicenet SDN modules

    yes ! any information appreciated.
  11. knowledgeconsumer

    Devicenet SDN modules

    Hey, Is there a valid status bit that can be used in the SDN card to detect an ADN adapter faults. Basically we have a system here that causes us trouble when a certain node fails, causing major line backups etc ... but if we were able to detect when this node faults we could disable the line...
  12. knowledgeconsumer

    1794-ADN Devicenet adapter status

    Hey, Im trying to locate a plc bit/file status from an Allen Bradley 1794-ADN module that will tell me when the module has faulted. Do devicenet ADN modules have this capability ? thanx in advance D
  13. knowledgeconsumer

    Rockwell software info please

    We are migrating two of our PLC5/80C processors to control logix ... we have a lot of complex indirect addressing goin on. AB have convinced us they have the mother of all conversion tools(havnt seen it yet) that will do the job painlessly. A couple of things a) i didnt know AB had an indirect...
  14. knowledgeconsumer

    Open com port through vb

    Thanks for that, Im going through the string data to make sure all the variables are covered. Then i will try the Chr$() function to send the non character codes and see what happens. Hopefully success !!
  15. knowledgeconsumer

    Open com port through vb

    Further to the initial post, i now need to send data to this ink jet printer in a recognisable fashion. I have captured the data(portmon) but dont know how to interpret it! heres a sample of the text i captured if anyone can help me out. All the data i need is in the text below. Im not sure...

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