4/27/2020 12:26 PM | |
Posts: 8 Rating: (0) |
Please advise how to connect correctly the LED tape (WS2812b) to the S7 series controller? Maybe a SPI-Interface? Thanks in advance
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4/27/2020 1:00 PM | |
Joined: 9/27/2006 Last visit: 11/10/2024 Posts: 12293 Rating: (2691) |
Hello SergiK; Possibly this article (from the Arduino forum) will be of help. Note that they imply that you need Arduino board and programming to control the LED Tape, with PLC outputs interfacing with the Arduino board: https://forum.arduino.cc/index.php?topic=437435.0 Most of the articles on the LED tape discuss different Arduino controls. Hope this helps, Daniel Chartier |
4/27/2020 3:35 PM | |
Joined: 9/27/2006 Last visit: 11/10/2024 Posts: 12293 Rating: (2691) |
Hello SergiK`l; If you examine the transmission details in the last page of the datasheet you provided, you will have to generate pulses at 4,5 V max to send control signals to the LED Tape controller. The S7 PLCs are not capable of doing so without either interposing relays or an adapter board of some kind. It could be done, but it will take a bit of sly programming to interface with the lED tape control chip. You mention CAN as supported by the tape controller. The datasheet provides no information on that possibility. Do you have access to further information? The S7 families of PLCs do not use CAN natively, but 3rd party manufacturers provide CAN or CANopen communication modules for the S7-300 (Helmho;tz CAN 300) and S7-1200 (Conrad Ixxat 21620). Or you could search for gateways, Profinet to Canbus, Profibus to CANbus for example (see the screenshot below). https://www.helmholz.de/en/products/fieldbus-applications/can-bus/communication-modules/can-300-pro/ https://www.conrad.com/p/expansion-card-can-bus-s7-1200-ixxat-21620-1386526 Hope this helps, Daniel Chartier |
Last edited by: dchartier at: 04/27/2020 16:04:30 |
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