/sarcasm
ladderlogicworld and structuredtextworld are battling for market dominance and advertizing in the webworld of PLC programming information.
instructionlistworld is falling behind these two leaders.
sarcasm/
I am not so impressed with the quality of the presented information.
In the list of manufacturers, who is RS Automation and RS Enterprises ?
And in the market share ranking list, B&R are both #8 and #11. Well done.
Dig into the information for each manufacturer, and it is extremely superficial, or plain wrong.
It appears that Beckhoff manufactures these PLCs:
Beckhoff C60 Ultra-compact Industrial PC
Beckhoff X61-69 Control cabinet Industrial PC
Beckhoff C70 Ultra-compact Industrial PC in IP 65/67
What about CX7000, CX8000, CX9000, CX1000, .... ?
Someone has just mindlessly lifted information from the various brands websites without knowing anything about them.
edit:
Finally someone has answered the question, what is the difference between fixed, modular and distributed PLCs:
https://ladderlogicworld.com/plc-architecture/
When this question appears (again) on this forum, I can link to that page.