Point IO

Can multiple Logix PLC's control the same Ethernet I/O?

A client recently asked me if multiple CompactLogix (or ControlLogix) processors could control the same Ethernet I/O. Since RSLogix5000 has supported Ethernet I/O, its been possible to setup two processors to control, or "own," the same remote rack of Ethernet I/O....
Large Rack Of Point I/O

Large Point I/O rack communication issue

I was recently called into a “consumer goods” plant to look at a communication problem with Point I/O. The night before I was told all the Point I/O, which had been successfully tested overseas, was no longer working. However, when I arrived on-site the problem was...
Failed to flash 1734-OE4C step featured image

How to avoid "bricking" Point I/O modules when you attempt to flash firmware

I was recently contacted about some very experienced controls engineers who had ran into a strange issue. They had come across a firmware problem with one of Rockwell's 1734 Point I/O modules, but weren't having any luck successfully upgrading the firmware. Actually, it was worse than that...

Point I/O vs Flex I/O

A reader recently asked what the difference was between Point I/O and Flex I/O, and in today's article I'll share my thoughts on the subject. Note: Those not familiar with Rockwell's I/O products may also want to consider 1756 I/O,...
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Point I/O and Flex I/O Compared (video)

In this week's episode of The Automation Show we compare and contrast Point I/O with Flex I/O: For more information, check out the "Show Notes" located below the video. The Automation Show, Episode 14 Show Notes: Previous article mentioned in video: Point...

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