productivity 0.1.0

Python driver for AutomationDirect Productivity Series PLCs.

Productivity

August 2019: This driver is in very early stages of development.

Python ≥3.5 driver and command-line tool for AutomationDirect Productivity Series PLCs.

Installation

pip install productivity

Usage

PLC Configuration

This driver uses Modbus TCP/IP for communication. Unlike the ClickPLC, modbus addresses need to be manually configured in the PLC firmware.

To do this, go to Write Program → Tag Database, scroll down to the values you care about, and click the Mod Start cell of each value. This will assign Modbus addresses (e.g. 300001) to the values.

Command Line

$ productivity the-plc-ip-address

Per the manual, this will print a sample of Modbus registers. You can pipe this as needed. However, you'll likely want the python functionality below.

Python

This uses Python ≥3.5's async/await syntax to asynchronously communicate with a ClickPLC. For example:

import asyncio
from productivity import ProductivityPLC

async def get():
    async with ProductivityPLC('the-plc-ip-address') as plc:
        print(await plc.get())

asyncio.run(get())