What are programmable relays?

Programmable relays are also known in the market as:

Compact PLC, Small PLC, mini-PLC, micro PLC, Compact-PLC, industrial controller, Ethernet or RS-485 controller, automation controller.

Programmable relays are programmable logic controllers designed for small industrial automation applications with limited I/O needs. Their small size and simple design make them ideal for space-constrained applications.