PLC HVAC Control: An Air Handler Sequence That Holds
Write an AHU sequence on a CompactLogix: damper minimum position, supply fan VFD, chilled water PID, economizer changeover, compressor staging and BACnet.
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PLC Lean Manufacturing Data: OEE, Downtime Codes and SPC from the Controller
How a PLC state model feeds OEE, downtime reason codes and SPC triggers on a rotary filler: the ST block, the tag structure and the classic mistakes.
How to Create a Project in Studio 5000 (Step by Step, v33)
Create a new Studio 5000 Logix Designer project the right way: pick the controller, match the firmware revision, add I/O, write the first rung, download and go online.
Machine Learning PLC Integration: Where the Model Runs and What the Controller Owns
The PLC does not run the model. What to publish, how the score returns as an advisory tag with a watchdog, and a pump anomaly detector on CompactLogix.
Fuzzy Logic PLC Control: Rule Tables, Inference in ST and a Dryer Example
Where fuzzy control beats PID, how to hand-code memberships, a 3×3 rule table and weighted-average defuzzification in Logix ST, with a dryer example.
PLC Conveyor Control: Zone Logic, Jams and PowerFlex
Zone accumulation, cascade start and stop, jam timers that do not nuisance trip, and driving a PowerFlex 525 over EtherNet/IP from a CompactLogix.
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