oPlc 1.2

Description of oPlc program at Mac Shareware: oPlc is a powerful program that turns your Mac into a reliable Programmable Logic Controller.

oPlc is a powerful program that turns your Mac into a reliable Programmable Logic Controller.
There are more than 80 functional objects available.

* thousands of universal Modbus Input and Output devices available to connect via IP...
* use oPlc at home to control electric, heating, ventilation, cooling, access security, etc...
* control your model train track or other hobby equipment...
* use oPlc for education; learn the basic functions of a logic controller...
* contains basic HVAC components...
* use oPlc on a dedicated Mac mini for professional purposes...

There are many different objects divided into the following groups:

* Common - marker, register, timer, counter, time schedule, setpoint
* I/O - ModBus read or write coil, input and holding register
* Logic - digital port (N)AND, (N)OR, EXOR, flipflop, switch, BCD converter
* Compare - greater-, equal-, less, high and low limiter
* Calculate - add, subtract, divide, multiply, data conversion
* Controller - on/off, off/on, segmentation, PWM, P-regulator

For communication with Modbus-RTU devices an ethernet to RS485 converter is needed.



oPlc is a free to try software. You can free download and try it for an evaluation period.