ChrisKozanecki

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Posts posted by ChrisKozanecki

  2. Posted

    I am trying to connect an NS8 touchscreen to a PLC with Ethernet. I cant get it to do anything but sit there connecting and I have spent 4 hours messing with it. Can someone please help me with what the settings would be for the PLC (ETN21 or ETN11 I can use either module) and also help me with the settings for the NS screen? I have them both set to similar addresses (PLC is 192.168.1.1, touchscreen is 192.168.1.2) I have them both on network 1. In the NS I selected it to be node 2. If I go into the NS touchscreen settings and I select Comm test from the special screen, it will let me get the info of the PLC with command 0501 to N.n.u= 1.1.0. One thing that is very strance to me is that I also in the NS-Designer cannot select the memory addresses to be ETN:#### only PT or SerialA. I am pulling my hair out!

  5. Posted

    I found what you are talking about in W393, but unfortunately that wasn't much help. I am going to continue looking for the actual meanings of each bit in these 10 words from S to S+9. I know that if I put 0000 in S it will reset to default settings, and right now I am wishing we didn't need the special settings.

  6. Posted · Edited by ChrisKozanecki

    I looked at the STUP command, and it seems that it might be for a Comm unit. Does it work for the built in Rs-232 port, and if so how do I specify the onboard port in the N operand? EDIT: I found a book that had a little more detail. It seems it will work for the onboard RS232, but I am now stumped on the settings words. I cant seem to find where it tells me what S0-S9 equate to, and I have a custom setting I need to retain.

  7. Posted

    I have a strange (to me at least) situation with some CJ PLC's that I have, and I am hoping someone can help me eliminate the problems. Specs: They are CJ1G-CPU42H PLCs. They have an ID231 and an OD231. The Comm port is connected to a PC Comm port, and the cable is always connected. Using TXD and RXD to communicate due to small ammount of traffic. Troubleshooting: I find that when the PC is already powered up, the PLC will have a perfectly functioning RS-232 port when it powers up. I have no issues when the device powers up and I try to use the program on the PC to communicate. I find that when the PLC is already powered up, the PLC will not have a functioning RS-232 port when the PC powers up. No form of communication through this port is possible, not even connecting to another computer or another program. Power cycling just the PLC at this point will fix the problem I find that if the Cable is not connected to the PLC comm port it doesn't matter which powers up first. They port will always function. Conclusion: So based on my above findings, I am assuming that the PLC does some sort of 'protected' state on the comm port? Is there a way to reset this state within the ladder logic so that the PC and the PLC dont have to be started in a specific order? This has been causing confusion for all the operators of the machine. I appreciate any advice that can be given.

  10. Posted

    Do you have to use that particular PLC? If you can get ome with the CJ instruction set it has a compare string function built in. I believe the shoebox style for the CJ instruction set is the CP1H? (please correct me if I am wrong experts!)

  12. Posted

    One word of caution, with this command, if you are putting the data into say D1500, the first 4 digits will be in 1501. So if you are outputting them somewhere you will want to send 1501 then 1500 to have the number in the correct order.

  15. Posted

    I would have to agree, if you dont want to use the formula then historical data or a light sensor would be best. THe reason the formula is so complex is because the path that the sun travels at noon is actually a figure 8, and the shape of that figure8 is dependant on how far from the equator you are. /shrug Lousy science always getting in the way

  16. Posted

    If you google sunrise formula you find that its actually a very complex formula that changes based on your location, and the path the sun takes. It also is not a linear curve, but parabolic. A good approximation would be shown as: Unfortunately you will have to calculate the actual values based on where you are ( lattitude/longitude) but NOAA is a good place to start.

  18. Posted

    Oh yeah! I remember hearing about that a while ago. Is it already available?? That would be great assuming the price is right. I might have to call my omron rep and see what the american price is. The fact that I can put a couple different modules into it makes it even better.

  22. Posted

    are the inputs going to go sequentially on, to an all on state, or are they going to be one at a time? i.e.: 0000 0001 0011 0111 1111 or 0001 0010 0100 1000

  23. Posted

    Are you trying to send commands to the device? If the information you are sending is something that is mostly constant you could just format the section of memory to be ascii text instead of hex... I store text strings all the time in memory. I have been looking, but I cant find a part number ( if there is one) for an ascii unit. That may also be another option. anonymous has a good option also.