What are the differences between PLC and PAC

PLC vs PAC (Differences between Programmable Logic controller and Programmable Automation Controller)


Proprietary network and need programming.

Programming and function modeled after relay circuits.

Continuous scanning.

Needs duplication of data tags for interoperability.


Standard open architecture device.

Diverse protocols-CAN,Serial,Ethernet etc.

Distributed processing.

Common Tag database.