A-B PAC

Do you use Alias Tags? Automation Talk for March 22, 2019

One limitation of legacy programmable controllers like the PLC-5, SLC-500, and MicroLogix, was the inability to save "address names," known as "symbols" in the aforementioned products, directly to the controller. And since these "symbols" could only be saved with the...

Automation Talk: Thoughts, Impressions, and Goings-on for March 6, 2019

I'm very fortunate to be able to catch up with so many connections, blog readers, and forum posters each week. Often our discussions go in some interesting directions, many of which I think our readers here would also enjoy hearing...

The Fourth Generation of CompactLogix Controllers (5370)

The forth generation of CompactLogix controllers began with the release of the L1, L2, and L3 back in 2012. While 2012 might have been a bad year for Myan doomsayers, in was a banner year for the CompactLogix as Rockwell...

The Third Generation of CompactLogix Controllers (L4x)

The third generation of CompactLogix controllers began with the release of the L43 back in 2006. Designed to bring ControlLogix performance and select features to the CompactLogix line, internally the L4x series shares the same architecture as the 1756-L6x controllers. As...

The L23 CompactLogix Controller

The first all-in-one CompactLogix controller, the 1769-L23, released back in 2008. While the new, lower cost packaging was appreciated by those with smaller applications, the fact that L23 had no removable, non-volatile memory meant it wasn't suited for many OEM...

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