wayneplc

Thanks for your help I visited the siemens forum and got further help today I tried connecting the logo but didnt understand how to connect to the analog inputs.Do I7 and I8 have to be configured as AI1 and AI2 so they can be used as analog inputs or do they function as such automatically when an analog signal is connected . I tried reading the manual but the explanation is not clear[

Any help suggestions welcome. Continuation from earlier post regarding logo and application as part of level sensing device. I was told it could'nt be done but it is actually quite easy . Ill give a review of the problem. It is required to connect a level sensing device to a logo . The output of the device is an analog signal (voltage) 0.3-4.5V . From my investigations the logo has analog inputs and in function block diagram programming there are blocks which enable reading in the analog signal amplifying the analog signal and a message block function which can output the configured analog signal . My question does anyone out there know how to parametrize the blocks

I haven't been giving much attention to this lately but over the next few days I will stick with it till I come up with a solution. I have seen in other forums (siemens logo ) where the logo has been used to monitor the output from a thermocouple and output the result in degrees. The built in functions allow for comparing values i.e a value at the input and a stored value how to store the value ? I need to find out. The idea of using counters sounds like something I need to look at more closely .Ill post the results for all to see. Regards Wayne

Just me again not yet used to posting here. Please bear with me I would like to connect the LOGO to a device which produces an output voltage relative to it's angle of tilt. I would like to display the angle on the LOGO's screen. I'm no pro just trying to learn on my own ( with your help of course ). Are there any examples of ladder logic scaling programs which would enable me to convert a reading in volts to a reading in degrees.

would it be possible to control the adxl150 level sensing device by using the siemens PLC based on the leggo .Whta are the potential problems ?

would it be possible to control the adxl150 level sensing device by using the siemens PLC based on the leggo .Whta are the potential problems ?