Commercial tools with PLC hardware support
EcoStruxure Automation Expert(https://www.se.com/ww/en/product-range-presentation/23643079-ecostruxure%E2%84%A2-automation-expert/?parent-subcategory-id=45564116&filter=business-1-industrial-automation-and-control)
NxT Technology(https://www.nxtcontrol.com/en/productoverview/)
FBbuilder(www.yueyiautomation.com)
ISaGRAF(https://www.automation.com/en-us/products/product11/isagraf-releases-version-61)
Open source tools
Eclipse 4diac(https://www.eclipse.org/4diac/)
FBench(https://sourceforge.net/projects/oooneida-fbench/)
ICARU_FB(https://sourceforge.net/p/icarufb/wiki/Home/)
GASR-FBE(http://sourceforge.net/projects/gasrfbe/?source=navbar)
Academic and Research Development
Function Block Development Kit(http://www.holobloc.com/)
CORFU Framework(http://seg.ece.upatras.gr/Corfu/dev/index.htm)