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About Fotonic

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  1. Many thanks for interesting, I'll use the provided link for future requests.
  2. Thanks for signaling, honestly I did not know that. I'll use the other channel for reports then. Sure, just look here:
  3. I hope so. There's another bug that I've signaled some days ago but had no attention... and that's pretty bad too. Found a dirty fix to it but an official fix would be great. :/
  4. Hi, Is there a way to set a default zoom level for unilogic editor? It always open at 100% but to have a better view of the ladder section I need to zoom at 80% and every time I must do this by hand, not only one time but on every ladder module I have to set the zoom at the needed level.
  5. I understand that the bit refers to a touch action on the phisical screen, but isn't vnc supposed to be a way to "touch" the screen remotely? Thanks for the feature request. There is that bit and I disable all functions related to screen touched bit when vnc client connects. Honestly it's pretty annoying in my opinion, if you forgot to disable something you mess up the program even when the vnc client disconnects.
  6. Hi, during operation via VNC client it's impossible to go back from screensaver screen since it's functionality is based on General.Touched Bit that is not set via VNC. This is a problem also related to resetting the timer associated to the screensaver screen loading since it's not reset when screen is virtually touched in VNC.
  7. Hi, In my UniLogic project I have some binary text objects associated with digital input bits. I expect that the text inside the text object changes accordingly to the associated bit, in this case the state of the digital input pin then. Going online to debug the program I am forcing the input state of the digital input pins and nothing happens, the text in binary text object does not change. If I apply a voltage to the digital input, so that it reads 1, the binary text changes as expected. If in a rung I insert a contact associated to the digital input bit that drives a coil associated to a memory bit variable, then if in HMI I associate the binary text object to that bit variable, I can see it changing if in online mode I force the state of the digital input. Does anyone know a fix to this annoying bug? If the PLC is not nearby it's a pain to debug and I'd like to avoid to mirror all the digital inputs on bit variables just to fix this. Thanks.
  8. Trust me, it's a pain to understand how those switches need to be set. The serigraphy near the switches reports something like "V/I" on one side and the switches are soldered so near to eachother that it's impossible to see if there are other writings on the other side of them. The VFD I am working on at the moment is relatively small (1.5 kW 1ph). Last month I had to work on 2 VFDs of 15 kW size and accessed the switches just to set RS485 termination on the last one on the bus (I could use modbus on that project and all went ok at first try), I admit I don't remember how the switches were placed but I remember that was not so immediate to locate the correct setting for the RS485 one I needed. I have 2 7,5 kW VFDs around now too, time to have them installed and I'll have a look at the switches... if possible I'll take and post a picture, stay tuned.
  9. Ok, thanks for confirmation then. Was just an idea for some graphic presentations. I know PLC is not the right platform for such things but was just wondering if it would've been possible to do.
  10. I'll discuss with my superior to see if it's ok to go with voltage control, in that case I hope it will be more immediate and the I control will be experimented again in the future, sadly I have no much time left to dedicate to investigate this problem. I don't know what to do with VFD, all settings seems ok to me, followed manual indications where present. PLC is outputting the right mAs, as expected.
  11. Yes, PLC jumpers are documented, the mistery is on unitronics VFD switches. With a torchlight one can see inside VFD and near the switches there are some "V" serigraphed, but it's not clear how to interpret them.
  12. Hi, quick question: is it possible to change X,Y position of an HMI element while the PLC program is running or are graphical elements static once downloaded? Thanks.
  13. So, the P00.* parameters on the VFD are correct, commands are received via the digital inputs on the VFD itself and the frequency is set via the A2 analog input on the VFD, the dip switch for V/I selection is set on I (at least I hope so, unitronics documentation lacks this information... pretty bad... :/ ) and the analog output from PLC is outputting the correct mAmps. Connections are made according to unitronics VFD manual. No success so far, I'll try some more experiments with VFD parameters and in case change to 0-10 V input signal to see if at least that works. :/
  14. I see, so is it correct to assume a range 0 - 4095 corresponding to 4 - 20 mA 12 bit analog output or do I have to use 819 - 4095 range instead? Tomorrow I'll try both cases and measure output current with multimeter. But the problem remains on the VFD, I don't know how to achieve precise frequency control, considering I'd also like to use linearization function to set intermediate frequencies... :/ Edit: Looking at the VFD manual maybe I found the problem. They say that AI2 0-10 V mode corresponds to 0-20 mA mode so that 10 V equals 20 mA. I set the parameter P05.37 (Lower limit of AI2) to 4 but if this is related to 10 V full scale then it should be set to a value of 2. Then all the linearization made by the VFD should be correct too.
  15. I am pretty sure that the output from PLC is correct, measured current with a multimeter. But anyway, since I am learning, how do I set fast or normal mode for the analog output of the snap in module? I cannot find anything related to this and in visilogic there's no setting for fast modes on AO configuration section. Thanks a lot!
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