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What’s the Difference Between a PLC and a PAC?
In industrial automation, choosing the right control system is crucial—but the line between PLCs and PACs isn't always clear. Are they the same thing? Is one just a newer version...
Industrial Automation Co Blog
Industrial Automation Co, located in Raleigh, NC, is a global reseller of hard-to-find and obsolete industrial automation parts. We offer comprehensive customer support and a top-tier warranty on all products
What’s the Difference Between a PLC and a PAC?
In industrial automation, choosing the right control system is crucial—but the line between PLCs and PACs isn't always clear. Are they the same thing? Is one just a newer version of the other? The short answer: not quite. While both PLCs (Programmable Logic Controllers) and PACs (Programmable Automation Controllers) are designed...
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How Ladder Logic Works: A Beginner’s Guide to PLC Programming
         Ladder logic is the universal language of PLC programming—and it’s not going anywhere. Whether you're working with an Allen-Bradley MicroLogix or...
Sinking vs. Sourcing Explained: Wiring PLC Inputs the Right Way
If you’ve ever wired a proximity sensor to a PLC input and gotten unexpected results—or worse, damaged a module—you’re not alone. The terms sinking and sourcing are among the most misunderstood...
Smart Motor Controllers vs. Traditional Starters: What’s the Better Choice for Your Motors?
The choice between smart motor controllers and traditional starters isn’t just a matter of technology—it’s a strategic decision that can impact your facility’s uptime, energy use, and long-term operating costs. While...
Top 10 Allen-Bradley PLC Errors (And How to Fix Them)
      Allen-Bradley PLCs are trusted worldwide, but even the best control systems can run into trouble. Whether you’re working with CompactLogix, ControlLogix, or MicroLogix, this...
Migrating from Siemens S7-300 to S7-1500 with Industrial Automation Co.
A Northeast chemical plant risked production delays when their Siemens S7-300 PLC began failing after 20 years of service. They turned to Industrial Automation Co., a veteran-owned distributor in Raleigh, NC,...
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Explore all posts from Industrial Automation Co, a global reseller of obsolete industrial automation parts
What’s the Difference Between a PLC and a PAC?
In industrial automation, choosing the right control system is crucial—but the line between PLCs and PACs isn't always clear. Are they the same thing? Is one just a newer version...
How Ladder Logic Works: A Beginner’s Guide to PLC Programming
         Ladder logic is the universal language of PLC programming—and it’s not going anywhere. Whether you're working with an Allen-Bradley MicroLogix or...
Sinking vs. Sourcing Explained: Wiring PLC Inputs the Right Way
If you’ve ever wired a proximity sensor to a PLC input and gotten unexpected results—or worse, damaged a module—you’re not alone. The terms sinking and sourcing are among the most misunderstood...
Smart Motor Controllers vs. Traditional Starters: What’s the Better Choice for Your Motors?
The choice between smart motor controllers and traditional starters isn’t just a matter of technology—it’s a strategic decision that can impact your facility’s uptime, energy use, and long-term operating costs. While...
Top 10 Allen-Bradley PLC Errors (And How to Fix Them)
      Allen-Bradley PLCs are trusted worldwide, but even the best control systems can run into trouble. Whether you’re working with CompactLogix, ControlLogix, or MicroLogix, this...
Migrating from Siemens S7-300 to S7-1500 with Industrial Automation Co.
A Northeast chemical plant risked production delays when their Siemens S7-300 PLC began failing after 20 years of service. They turned to Industrial Automation Co., a veteran-owned distributor in Raleigh, NC,...
Troubleshooting S7 PLC Communication or I/O Errors with Industrial Automation Co.
A Midwest packaging plant faced a sudden halt when their Siemens S7-1500 PLC lost communication with its I/O modules, costing $15,000 in downtime. They turned to Industrial Automation Co., a veteran-owned...
Common Programming Tips Using TIA Portal with Industrial Automation Co.
An automotive plant in Texas struggled with inefficient PLC programming, causing frequent production halts. They partnered with Industrial Automation Co., a veteran-owned distributor in Raleigh, NC, to optimize their Siemens S7-1500...
Siemens S7-1200 vs. S7-1500 Series: Choose the Right PLC with Industrial Automation Co.
A Midwest manufacturer faced a critical choice: replace a failing PLC to keep their production line running or risk costly downtime. They turned to Industrial Automation Co., a veteran-owned distributor in...
Allen-Bradley PowerFlex 525 AC Drives: The Versatile, Efficient VFD Built for Modern Automation
Modern automation requires more than just power—it demands control, connectivity, and adaptability. The Allen-Bradley PowerFlex 525 AC Drive meets that challenge with a compact footprint, modular hardware, and built-in safety features....
Labor Shortages Meet Automation: Why May 2025 Is the Turning Point for U.S. Factories
May 1st has long been known as International Workers’ Day — a time to honor the industrial workforce that built and powered the modern world. But in 2025, that workforce...
PowerFlex 700 Keeps Restarting? How to Troubleshoot Power Cycling and Startup Failures
You’ve just unpacked a new Allen-Bradley PowerFlex 700 drive. You wire it up, power it on… and suddenly, it starts power cycling. No motor leads connected. Voltage seems fine. The...