I need a simple PLC that I can control from a standalone Python application. I would like to do that using Modbus, but am open to other alternatives as well.
The only tasks the PLC need to do is to control a switch, e.g. this DigiKey Part Number:
2170-SI-LS83E-ND
and read back a sensor, e.g. this DigiKey Part Number:
311070006-ND
Can this PLC be used for this purpose?
And can it be used without any additional licenses for configuration etc.?
Hello @halfspring
Welcome to DigiKey’s TechForum,
Siemens LOGO PLC’s are stand alone devices that support Modbus communication. You can view their System Manual (Linked Here)
This does require a software license. Their software is referenced on page 334 and can be found linked here:
There are other options you can consider as well. For instance part number 1050-AFX00001-ND, or others from this family, are also stand alone PLC’s that support Modbus. These were featured in this Maker discussion (Click Here). There is no additional software license utilizing the Arduino IDE reference links on page 21 of the Datasheet Click Here
Thanks a lot for your reply, @Troy_2808!
Your other option suggestion seems to exactly what I’ve been looking for.
