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Pavel M

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  1. Hello and thank you everyone for answers That is true, im using wrong usb to serial adapter, i saw someone used CH-340 so i decided to buy some random cable with the same driver, but mine was without power on pins 1 and 6. I found old pc with com port and communication works fine Ok, we learned, thank you again Pavel M
  2. Hello, i'm trying to communicate old JZ10-11-T40 with my PC, but can't do it properly. What did i do: 1. Installed driver USB-to-serial 2. Installed USB driver from U90 ladder 3. Turned ON PLC 4. Got connection from PLC to PC through this chain MJ-20PRG > MJ20-CB200 > MJ10-22-CS10 > USB-to-serial adapter When i'm trying to get PLC version - i get nothing This error appears all the time, but the interesting thing is next: When i try to get version - it is trying to synchronize COM ports and then this error above appears When i press Stop - i see PLC in stop mode, but then this error appears anyway When i press Run - i see PLC goes from stop to run mode, but this error appears anyway I was trying this on windows XP, windows 7 and windows 10 and got the same results U90 ladder version is the latest - 6.6.45 [DB 109] Any suggestions about that? I think it sends some commands, but can't receive any data, so is that a problem with MJ20-CB200 cable? Also i have JZ10-11-R10, switched hardware configuration correctly and get same results as JZ10-11-T40 ==================== 02.03.20 09:03:42.32 : < 3,9600,E,7,1> 3, 9600, 7, Even, 1, 3, 1000 > Retransmitting 02.03.20 09:03:43.32 < 3,9600,E,7,1> > Switching Com Port 02.03.20 09:03:43.32 < 3,9600,E,7,1> > Synchronizing Com Ports ==================== 02.03.20 09:04:10.32 : < 3,19200,E,7,1> 3, 19200, 7, Even, 1, 3, 1000 > Retransmitting 02.03.20 09:04:11.32 < 3,19200,E,7,1> > Switching Com Port 02.03.20 09:04:11.32 < 3,19200,E,7,1> > Synchronizing Com Ports 02.03.20 09:04:12.32 < 3,9600,E,7,1> > Retrieving OPLC Default Settings This is information from log file, was also trying to change default settings
  3. Hello, there were a lot of topics here on this forum about PID regulation, but i still got some questions about PID: - i've connected PT100, which i can regulate manually, when i run autotune i have some parameters been written in vector in like 1 second, but then they all overwritten by 0, i do not get "autotune done" bit into 1, my autotune does not turn off and it does nothing when i try to change PV and i do not get any P, I and D parameters; so, do i need like fully completed loop with my actual heater and output CV (PWM) which will control my heater? or there any other way i can test if it works properly? Running PID server shows me, that i am changing PV and getting higher than SP gives me CV low limit, getting lower than SP gives me CV high limit, but also the problem is that sometimes it changes too fast and it can't read value so it gives 32767 and auto-tune goes wrong. I'm using v700 with 18E4XB snap, with the simplest ladder logic from .help file, i guess it might work like i need, just want to be sure If you need - i'll post some screenshots of my PID, but they are not really differ from .help file or examples edit: also, i've got one more question about PID - can i run couple autotunes at once?
  4. Hello everyone I have a question about temperature of plc. I am using V700 and in tech spec i see the working temperature 0 - 50 degrees of celsium and i can check it by turning on SB14 and the value will be shown in SI14. So here is the question - does it have build-in protection from overheat or undercooling or do i have to organize it by myself? Did not find the answer here, so decided to start new topic. I don't think that i need it for my current system, but still getting some extra information about it might be viable. Sorry for bad english, it is not my native language
  5. Thanks for reply. I was not involved in choosing platform, my directors were, but V700 seems fine to handle our task. Probably in future they'll make a decision to change to UniStream. I haven't download UniLogic yet, because i'm not familiar with ladder logic at all and haven't got almost any experience in it, but i'll probably download it later and check this program product also just for myself. Pavel M.
  6. Hello everyone, i found some similar topics about passwords but they did not help me, so i decided to start this one. What i'm trying to do is make multiple access levels. So i need 17 passwords, first i was trying to make legal entries as vector of DW operands, but it seems that it works only for one operand which sits in DW20. Here is screenshot. (Yes, i linked MB13 to legal entry, not on this screenshot, but in project) After that i was trying to link it to data table, but it did not work for me In data tables there are no IDs, just passwords, so there is only one column. So, basically, my goal is to press on Variable: Password button, enter some numbers and i was trying to get 2 results: 1. It will find it in data table, get the row number and i will compare it with one of my constants to get the proper access level or other option, or 2. Input password will compare the vector of password DW20-DW36 with some DW20/21/22... to get proper access level or other option. Sorry, that is my first project and i think that is kinda similar question, but still got some trouble with it. If you need, i can link my project, but the problem is that it's all in russian language, so you probably won't understand anything in it and also i'm almost non-stop changing some stuff trying to figure out passwords logic. And sorry for bad english, it's not my native language. Thank for help Well, somehow i made it work with Variable: Numeric, loading some numeric value, comparing it with data table value, getting row number and then comparing it with some constant But anyway, for my future projects - is that possible to make similar thing with Variable: Password?
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