4/22/2016 2:16 PM |
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Posts: 31 Rating: (2) |
This is going to be a really easy fix I know ....................but it's doing my head in !! I have a LOGO8 24VDC with relay output and the supply is fed from a Siemens 24v PSU I have a Temp sensor (see attachment) which needs a 5v feed so I have wired a DC-DC convertor (24>5V) from the O/P of the Siemens PSU to create the 5V When switched on I have voltage at both O/P's of the sensor and connected these to two LOGO inputs (0-10v) My question is - Why I'm I not seeing the inputs on the LOGO software ? Thank you in advance AttachmentHUmidity sensor.pdf (409 Downloads) |
4/22/2016 2:20 PM | |
Joined: 12/18/2014 Last visit: 12/3/2024 Posts: 34334 Rating: (4276) |
Have the 0V of 5VDC the same potential as 0V of the power supply of the logo? If not, both 0V together. |
4/22/2016 3:25 PM | |
Joined: 12/18/2014 Last visit: 12/3/2024 Posts: 34334 Rating: (4276) |
Here is a proposal for the humidity measurement.
AttachmentHumidity.zip (405 Downloads) |
This contribution was helpful to2 thankful Users |
4/25/2016 4:10 PM | |
Posts: 31 Rating: (2) |
Hi, Yes I copied your diagram and connected it to I1 Do I have to change anything on the software side ? |
4/25/2016 4:58 PM | |
Joined: 12/18/2014 Last visit: 12/3/2024 Posts: 34334 Rating: (4276) |
AI1 is not terminal I1 an base module. AI1 is tetminal I7. |
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