Has anyone looked at implementing Codesys on the Siemens IOT2040 device?
I would think it would make an ideal target - open, capable, UL approved, 24V powered...
SIMATIC IOT2040 from the SIMATIC IOT2000 product series at a glancehttp://w3.siemens.com/mcms/pc-based-automation/en/industrial-iot/pages/default.aspx
Energy-saving Intel Quark processor and numerous interfaces: Intel Quark x1020 (+Secure Boot), 1 GB RAM, 2 Ethernet ports, 2 x RS232/485 interfaces, battery-backed RTC
Yocto Linux Support
Can be easily expanded with Arduino shields und miniPCIe cards
Various options for programming in high-level languages
Compact design and DIN rail mounting
Proven SIMATIC quality offers great ruggedness, reliability and longevity
You could easily make custom Arduino shields to add functionality as needed.