REXYGEN Community Forum

tazntex

Member

Registered: 2018-04-04

Posts: 3

Max31856 Quad

I am looking to interface a quad MAX31856 connected to a Raspberry Pi 3 to read type K thermocouples. am unsure which function blocks to us to process the SCK, SDO, SDI, and the CS pins to display the temperature on an HMI and for the PV on the PIDU.   

Thank you.

tomáš čechura

Administrator

Registered: 2016-02-22

Posts: 371

Re: Max31856 Quad

Hello tazntex,

thank you for your question. In order to implement SPI communication in REX use REXLANG function block and functions OpenSPI() and SPI() - see REXLANG documentation for more details - https://www.rexygen.com/doc/ENGLISH/MAN … 2-26100015

There are also few examples on SPI communication as part of standard installation of REXYGEN development tools - look for folder "0503 - Generic SPI Communication" or visit our GitHub example repository - https://github.com/rexcontrols/REXexamp … munication

If you require any further information, let me know.

Regards, Tomas

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Raspberry Pi as a miniature industrial PC. Analog and digital I/O, RS-485 and 1-Wire bus.