Industrial Automation, PLC, VFD, and Troubleshooting
Industrial instrumentation is one of the most important areas of automation.
Sensors tell the PLC when something is ON or OFF.
Instrumentation tells the PLC how much, how high, how hot, how …
Read MoreIn industrial automation, not every signal is simply ON or OFF.
Some devices need to send a real measurement to the PLC.
Examples:
Pressure = 72.5 PSITank Level = 63%Temperature = 180°FFlow = …
Read MoreIs It the Sensor, Wiring, PLC Card, Scaling, or HMI?
Analog input troubleshooting is one of the most valuable skills for an automation technician.
When an HMI value looks wrong, unstable, frozen, …
Read MoreFrom Raw Counts to Engineering Units
In industrial automation, a PLC does not automatically understand pressure, level, flow, temperature, or weight.
The PLC receives an electrical signal from the field instrument. That …
Read MoreA Practical Guide for Automation Technicians
One of the most important signals in industrial instrumentation is the 4–20 mA current loop.
If you work with pressure transmitters, level transmitters, flowmeters, temperature transmitters, …
Read MoreWhat Automation Technicians Need to Understand
In industrial automation, a process variable is any physical condition that must be measured, monitored, displayed, controlled, or used in logic.
A PLC does not directly …
Read MoreA Practical Guide for Automation Technicians
Industrial instrumentation is one of the most important areas in automation because it connects the real physical process to the control system.
A PLC, HMI, or …
Read MoreTurning Real-World Signals Into Useful Numbers
In PLC troubleshooting and programming, not every signal is simply ON or OFF.
Many devices send a variable signal that represents a real-world measurement, such as:
TemperaturePressureLevelFlowWeightValve …
Read More