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FireNeck

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FireNeck last won the day on January 29 2014

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  1. Hi JoS0, I don't know if I understand correctly what you mean, but I assume that you set up the the PID only with help of the PID FB "RUN Auto Tune". So the PLC tries to find out the values for P, I and D itself and stores them. I do it differently: I set a Positive Transaction of SB2 (Power Up) and as second possible condition a positive transaction of a MB (Manual Config, e.g. MB10) to trigger the PID FB "Configuration". That way the power up bit or the Manual Config Bit can run the Configuration of the PID with my entered values for Setpoint, Upper/Lower Input/Output Level, P-Val
  2. Hi AZ1975, please don't shout, we'll hear you... I found that there are two ways of using HMI built for bigger screens on a smaller screen without crashing: 1. Don't call them - works fine, but I think is not what you used 2. Re-Edit the screens. Means, if there are buttons or frames or anything else that would not be visible on a V570 when using a screen made for V1210, the PLC will definetely crash. You have to rearrange the screen so that everything is visible on a V570 screen. No workaround on that, I'm sorry. Hope that helps FireNeck
  3. Hello Jo, I don't know exactly if I can help, but at least I can share my experiences with Unitronics PID. First thing first: I saw that your Output Limits are set to 820 to 4000. You wrote that you want to go with 0 to 10 V, that would be 0 to 4095 in Units for the AO, but that was just something that came to my attention. But be warned, by limiting the output to 820, you will never fully close the valve (just to say). But going to the PID itself: I found it easier to limit the action to P and I only, so mostly I set the D value to "0". Next thing is: as described in help file:
  4. Hi Mike, thanks for your quick response. Seems that I should stop guessing and start reading help file more intensely.... My fault, answer received, topic closed. Thanks again FireNeck
  5. Hello Simon, yes, you're right as far as that there are older versions of OS in the folders of the older VisiLogic versions. But there is always just one older OS, or let's say "the latest OS for the compatible VisiLogic Version". Just an example: in the folder for VisiLogic 6.01, the OS therefor V570 is 1.02(08). But I need for some old PLCs in use OS 1.02(01). Another Example: VisiLogic 9.3.1, V1040. OS installed on the PLC is 3.03(00), latest OS in folder is 3.03(16). For troubleshooting it would be nice to have the old OS files so that it's possible to see if the change from
  6. Hi at all, just a quick question: As I have to upgrade to VisiLogic 9.5.0 due to access our newest software, I am missing the 9.3.1 swapper version. It's just not listed at the website. Could Unitronics load it up, so that I can securely acces my "older" versions installed at other sites with 9.3.1?? Thanks FireNeck
  7. Hello to everyone, just a short but in my opinion important question: Is there a compatability table out there, which VisiLogic version is working with which OS on which PLC?? It's just a thing (to me) as often Unitronics recommends on having the latest OS installed and having the latest VisiLogic installed.... I mean, for sure, it's (mostly) the best to have everything up to date, but seriously, having about 60 PLCs out with remote access to only 30% of them, and just going to "let's update them today" just to find that something's not working the way it did before is not a fa
  8. Simon, as for your questions what I can say so far: - the read operations have never been a problem in the old installation, only sometimes the write operations - in the ladder software, there is used before every operation a negative contact of "Function in progress"-Bit, after the "Read Holding Register" function for example, we jump to another step, where a counter is incremented if the Function in progress bit is negative and with the positive contact of SB15 (100 ms coil), until counter reaches 20, then we go to next function (read or write), so the time delay to wait for an answer sho
  9. Joe, Simon, thanks for your advices so far. When I'm able to go to the site one more, I will try this out (even though I already tried with one terminator off without success), but we'll see. Concerning the part of having A und B signals inverted somewhere: As stated in first post, the exactly same cabling was used to communicate ModBus to the slaves with the V260 before, but with a RS485 card installed at COM3, which now has been removed for Ethernet-card on COM3. As it was working back then(at least 70% of the time, as long as the ModBus function was processing the read operations, but w
  10. Hello Simon, once more it's me. So I tried with a RS232/RS485 converter. It's a device from third party, which allows powering from RS232 and optional powering from another source (it's USB as it's built to connect a PC to e.g. a ModBus-net). So after about 2 hours of trying with no results, I changed the complete setting from COM2 to COM1 on the PLC and after the PowerUp, it was running .... at least for 10 seconds (the read acknowledgement counted till 26) and it was gone again.... What was very confusing to me: when watching the slaves (3 in this case) I could see that the slaves receiv
  11. OK, thanks for the info, Simon. Let's assume i put an external converter RS232/RS485 (bidirectional) inbetween. Do I have to change my code concerning modbus RHR and PHR and so on? Or is it just changing the port setting from RS485 to RS232?? Could I use the programming cable to connect to that external converter? Any suggestions on that? Reason is: at this V260 there was a V200-19-RS4X installed for the RS485. We replaced it with a V200-19-ET1 to have better remote access to the PLC. Now we face the problem of having no ModBus Communication to the 3 external devices we want to gather data
  12. Ok, thanks for the info, so no jumpers around. But can I use the port for ModBus RS485 communication or is COM2 RS232 only? Thanks for your help so far! regards FireNeck
  13. Hi @ all, I have just a short question about the hardware of a V260-16-B20B. When reading the installation guide, there is stated, that the COM2 Port could be used either as RS232 or RS485 port. One should be able to choose if it's 232 or 485 by changing jumpers on the inside of the OPLC, right next to the COM-Ports. As I opened the OPLC to install an Ethernet-Card on Port3, I wanted to change the COM2 Port to RS485 by jumper selection, but there is none .... So, is it not necessary to have jumpers switched on V260-16-B20B or is it not possible to use it for RS485 Modbus Communication on
  14. Hi Emil, thanks for the suggestions. I was also in contact with support and when they tried to duplicate the problem, they hadn't any, so I was guessing and testing around. Support also told me to check the OS version (mine is rather old it seems). I tried increasing SI59, but the programm didn't accepted my entry, always stayed at 0 ... interesting though. But now to what I found out: I was connected to the PLC through VPN-Tunnel, cause the site is some distance away. I always tried to send the eMail, while still connected. I found out that this circumstance messed everything up. So I
  15. Hi again, no ideas from your side? I now played a little with all this stuff (eMailing) and something suspicous showed up: While sending the file from SD-Card, the SI66 changed from 0 to 1 (indicating "SD Card Read:End of File"). Also the file I received was only 10kb, another try only 2kb in size, but when confirming by looking at the SD-Card directly with SD-Card-Explorer, it shows me that the file size is 101kb?? I checked SI58 (email file attachment size) and adjusted from "1024" to "500" for testing purposes, but the result was the same. Interesting thing also, aside from changing t
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