7/5/2018 11:55 PM | |
Posts: 10 Rating: (0) |
Hello everyone! I am working on a project where i have a proximity photo sensor connected into the IOT device. The wiring scheme is as follows: Brown - 24VDC Blue - 0VDC White - Unused Black - DI0 When i measure the voltage across DI0 and M0 with the sensor unblocked, I get 0VDC and when I cover the sensor, I get 24VDC which gives me a HIGH on the pin. Now I wish to reverse the polarity i.e. 24VDC with the sensor unblocked and 0VDC with the sensor blocked. I tried the following combinations: 1. M0 to 0VDC with white wire in DI0 - I get 5-7 VDC with sensor unblocked and 0VDC with sensor blocked 2. M0 to 24VDC with white wire in DI0 - I get 0 VDC with sensor unblocked and 24VDC with sensor blocked 3. M0 to 24VDC with black wire in DI0 - I get 5-7 VDC with sensor unblocked and 0VDC with sensor blocked Can I achieve this polarity on this IO module without the use of external components? Forgive me if I have overlooked something basic =) Thank you for your help! AttachmentSIMATIC-IOT2000-User-Manual-Datasheet.pdf (151 Downloads) |
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