Industrial Automation, PLC, VFD, and Troubleshooting
Commissioning is the stage where a PLC control system moves from programmed to proven in the real machine.
A program may look correct offline and still fail during startup because commissioning …
Read MoreThroughout this PLC series, we repeatedly used an important programming concept:
Do not build your entire machine logic directly from physical I/O addresses.
Instead, create a clean separation between the real hardware …
Read MoreModern industrial automation depends heavily on communication networks.
Years ago, many devices were connected mostly with hardwired signals.
Example:
PLC output → VFD start inputVFD relay output → PLC input
That still exists today, …
Read MoreModern industrial machines depend on communication.
A PLC may need to communicate with:
HMIVFDsRemote I/OSCADAServo drivesVision camerasBarcode readersOther PLCsIndustrial switchesHistorian servers
When communication fails, the machine may stop, lose control, show faults, or …
Read MoreIn many industrial machines, not all inputs and outputs are wired directly to the main PLC panel.
Instead, many systems use Remote I/O.
Remote I/O allows input and output modules to be …
Read MoreIndustrial Ethernet switches are one of the most important parts of modern automation networks.
A switch connects devices such as:
PLC
HMI
VFD
Remote I/O
SCADA workstation
Vision camera
Robot controller
Servo drive
Barcode scanner
Engineering laptop
Historian server
A simple way to …
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