On the market for five years, Galil’s RIO Pocket PLC provides a cost-effective, compact and intelligent solution for programmable I/O control. Standard features of the RIO-47xxx series include 32 digital and 16 analog I/O, program memory with multitasking, PID process control loops, timers, counters, web interface, email alerts, datalogging, Ethernet and RS232 ports.

This article provides a sample project demonstrating a method to record indefinitely from a controller by uploading subsets of data from a free running circular array record using the RC/RD/RA commands.

With this method, only the host PC's hard drive is the limiting factor for the amount of data that can be stored.

This article provides a sample project demonstrating one method for writing desired data record values to disk.

Occasionally, it is beneficial to create a user-defined command set that can be received over the serial port and interpreted at an application program (.dmc) level.  The code below uses the "Communication Interrupt" feature of the Galil controller to accept characters over the serial port, parse

Introduction

This article provides a more advanced introduction to the Galil COM library. Specifically event based execution will be introduced using the three COM library events, onRecord, onMessage, and onInterrupt. The example will guide users, with minimal experience, to build the following application.