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 -...
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...
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
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...
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...
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...
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...
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...
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...