Today’s post is a continuation on Jason Lafever’s questions on PLC to PLC communications. PLCs often have a need to send messages to each other, and all have some method of directly sending a message to read or write tags …

Ladder Logic 309: Allen-Bradley Produced-Consumed Tags (Video) Read more »

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Today’s video is in response to a post I put on my Facebook automation forum, Automation Training. Jason Lafever asked if I would cover a bit on Allen-Bradley’s MSG (Message) Instruction, and cover Produced-Consumed Tags. I decided to split these …

Ladder Logic 308: Allen-Bradley’s MSG (Message) Instruction – Video Read more »

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Just an update on my PLC Trainer project. These are two of the Allen-Bradley Micrologix 1400 Trainers along with the Fischertechnik models I mentioned in my last post. The program and documentation for the Color Sorter, shown at left, is completed. …

Fischertechnik and PLC Trainers Read more »

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