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About dunc

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  1. Conveyor belt help (Ladder diagram)

    if it is not a "real life" project you can physically see, then i find it easier to visualize if i draw it out. so draw your tank and conveyor, a temperature sensor etc. once you have drawn it, you can label the inputs/outputs and then work your way from there to achieve the outcome.   as others have said, we are more than welcome to help if you have a go first
  2. TIA PORTAL connect with Mitsubishi FX3U

    probably better off posting that one in the Siemens specific forum section.   if you search google, there are some youtube videos that may be of help.
  3. First time with QS PLC, Starts up in stop

    we had a similar issue with an omron safety plc. when installed they had an issue with a safety input so it would always power up with a fault and not allow the outputs to run the system until reset.. once the safety fault was corrected, it was ok. it could be that something is starting up in a fault condition when you put the power on which is putting the safety plc into stop?  it is hard to suggest a suitable way around this without knowing a bit more about the system. unfortunately, i havnt done much with safety PLCs myself either.
  4. GT Simulator

    what options do you have if you click the drop down menu under option-> connection?
  5. GT Simulator

    on the drop down list where you select GX simulator 2, there should be some other options. i generally just try those and one tends to work.   its probably due to how you install the software or something!?
  6. GT Simulator

    i have had issues with the simulators. they seem to pick and chose what works and what doesnt on each install. have you tried selecting any of the other simulators?
  7. GSM Module using with Mitsubishi Q PLC

    the attached may help. this was using a QJ71C24-R2 module. i am not 100% sure of the radio modem type.   text message.zip
  8. subnetting question?

    I Havnt managed to get back onto it to be honest. thanks for the suggestion. i wanted to keep things simple as IT are not interested in helping (plus they work 9-5 and that is it). i am also the only person on site other than IT that has any networking knowledge. we dont have the resource to manage anything too complicated. like you said, adding extra items onto the network isnt always a simple case of setting the IP address and plugging it in using your above suggestion. if in the middle of the night we had a network issue, i would like everything to be physical unmanaged switches so a like for like replacement is easier for an engineer. in simple terms, if the lights arent working, they can get a new switch out of the stores, plug it in and it works.   i do plan to give it a go at some point, just need to free up some time to allow me to sit down and try it in theory and then in practice without disrupting production. i will let you know how i get on.
  9. GT Designer 3

    i have had it warn me about this, but it then lets me open it and then i can save it as the newer version after making the changes required?
  10. Data Passing Between Q PLCs over Enet

    To make reliable, i found fixed buffer programming fiddly to get right. once it is done, and done right, it is really reliable and robust. sorry, i wasn't too clear in my previous message
  11. Data Passing Between Q PLCs over Enet

    i found fixed buffer communication over ethernet to be a bit fiddly to make reliable. we tend to use our SCADA system to handle communications as it is easier to setup and manage, however the fixed buffer stuff we do have is much more robust and reliable.  
  12. FX3u-enet-adp issues?

    its version 2.7 :( there isnt enough room in the panel, which is why i opted for the enet-adp rather than the unit you fit to the right hand side. need to have another think about it now and see if i can move some stuff about in the panel to free up space.
  13. FX3u-enet-adp issues?

    we have an fx3u. i have purchased an fx3u-enet-adp. plugged it all in, fired it up and when i come to put the parameters in i get the attached error.   i am at a loss as to what to do next? please help :(
  14. Mitsubishi Q02CPU supported Software

    i am using GX developer 8.114U, this has the Q02(H) listed? that covers the standard Q02 and the Q02H i would be surprised if your version doesn't have it listed, but i dont know how old version 8.03 actually is!?
  15. be gentle with me as i am not sure if i am going about this the wrong way, or explaining it particularly well, but here goes.... in simple terms, we have 2 networks on site. one is managed by IT, and the other is managed by myself within the engineering team. all SCADA PC,s are connected to both networks with separate network adapters. all the automation gear is then connected via switches to the relevant SCADA system. the switches are also linked together for the most part, creating a network which is completely transparent from any point. we call this the control network.   due to the ever increasing size of the control network, i want to look at sub dividing it down into areas, but still keep the transparency of devices across the whole network. would i be right in thinking that i could substitute the 3rd number in the IP address with a number which would define the area, this would then give me 255 addresses available per area. would i also be correct in thinking that to achieve this, i would need to change the subnet mask on all machines to be to allow everything to connect to each other, but to still maintain a "marker" to denote the area the device is in?   hopefully i am right, but if not, please let me know the best way to achieve this without making it too complicated or onerous to maintain.