Tek-Tips is the largest IT community on the Internet today!

Members share and learn making Tek-Tips Forums the best source of peer-reviewed technical information on the Internet!

Register Log in
  • Congratulations MintJulep on being selected by the Eng-Tips community for having the most helpful posts in the forums last week. Way to Go!

Search results for query: *

  1. eugeni

    Green,red lights

    IRstuff Where i can find MIL-HDBK-1472? Eugen?
  2. eugeni

    Siemens S7-300 to OPC Server - Kepware, Mertz

    hi, MPI can go up to 187.5 K with a PC MPI board. Are you using Protool/pro for HMI? - ther is a tag update rate, there. What OS on your PC? From what i know there is a time frame limit on windos. For sure Profibus DP will increase your communication speed - up to 12M instead of 19.2 K -...
  3. eugeni

    Green,red lights

    hi all, Thank you for the suggestions. There is no problem for individual pilot lights (status = red/green (is) stopped/running) or simple push buttons (action = red/green (you can)stop/start ). The problem is when you put them toghether because of their almost opposite meaning- if it is...
  4. eugeni

    Green,red lights

    Thank you dpc. It is my impression too. Just makeing it sure. Eugeni
  5. eugeni

    Green,red lights

    Hi, I do have a question: There is a standard (USA and/or Europe) about the color of the illuminated pushbutton?. e.g.: green light shows the status of the machine (running) or the pushbutton action : start? This applies also at the HMI's buttons. Thank you Eugen
  6. eugeni

    Siemens MasterDrive on ProfiBus

    1. Sorry i did not see that the message was so old :). 2. The previous message was for the profibus connection using PKW. again sorry.( The exemple was from a PLC 315-2DP and MWxxx was just an example). 3.DC Link is not supposed to be connected to a break resistor. DC link is for connection of...
  7. eugeni

    Siemens MasterDrive on ProfiBus

    From what i recall there are some bits in the control word that should be forced. so: if you send the control word from MW116 then: M117.0 is the start (=1) stop (=0) M116.2 has to be 1 in order to start the drive now if the speed setpoint is sent correctly(there is a parameter where you can...
  8. eugeni

    Displacement sensor

    Dear Sirs, It seams that the path gets clearer (I' ve seen the light... :-)). I will have a thermistor on the sensor, a initial calibration (done only once - 3 degree and no local maxims or minims.) It is like "factory setup". And a displacement calibration, done periodically...
  9. eugeni

    Displacement sensor

    Dear sirs, 1. I am not lucky. The relationship is not linear. The temperature is rotating the characteristic somewhere in the midle of it. I could use this point for the calibration but this implies a very fine tunning. I could compensate using some math, but there is no guarantee that the next...
  10. eugeni

    Displacement sensor

    Dear Sirs, Thank you for the answers. 1.I forgot to tell you that the gap i have to measure is filled with some water based substance. The compositin of this gel like substance changes in time. I presume that capacitive sensors are not apprpriate for this application. 2.From the same reason i...
  11. eugeni

    Displacement sensor

    Hi, I do have a project. I need to measure a gap of 100 microns in real time. One surface is metalic and moving the other is plastic. I tried a proximity sensor (inductive) with a analogue output (it is not a displacement sensor), i wrote a program to make it linear and is working fine as long...

Part and Inventory Search

Back
Top