A Message instruction can be used to check the Ethernet link status of a 1756-ENBT or other ControlLogix family Ethernet module port to determine if there is a good Ethernet link.

This is a sample ladder logic program that will be used to configure an Explicit Message to read or write any drive parameter using a Get or Set Attribute message. The Explicit Message uses the

Here is the sample code I wrote for an Allen Bradley InView display I recently did. Well a year ago, recently...I just finished up a First Experience article that I will reference this source

LINT (64-bit time) to Date and Time (7 DINTS)

Dual Compressor Exercise 4, when 1 compressor is not enough, using latches.

This program was a fix for a Merrill Filler that lost one half of the screw. So because I could not get information to write from a Control Teqhniques Epsilon EP servo drive. I had the HMI

This is a small compilation of basic multi-vibrators, timers, counters and a couple more digital circuits for very beginners.

Example code to read and write integer and floating point data to and from CompactLogix, ControlLogix, and MicroLogix 1400 using EtherNet/IP.
This works with Omron PLCs using CJ1W-EIP21 or

SFC test file; cant call an STL written add-on from SFC main program

Created in RSLogix 5000 version 13
For EtherNet/IP this example program reads and writes words 5 – 12 with a CIP message block (MSG). This PLC code will program the RETA-01