Refurbished vs Used Siemens Automation Parts: Which Condition Is Right for You?
A plain explanation of Refurbished and Used options, and how to match them to your risk and budget.
PLC North
Obsolete Siemens Part? How to Find a Replacement Fast Without Redesigning the Machine
When the part you need is discontinued, a tested spare can keep the line running while you plan the next step.
Machine Down? What Information to Send Us to Get a Siemens Replacement Quoted Quickly
A short checklist that speeds up your quote when a PLC, HMI or I/O module fails.
Replacing a Siemens OP, TP or MP Operator Panel: Find the Right Match
How to identify the exact legacy panel you have and find a compatible replacement.
Siemens ET 200SP Spares: Interface Modules and I/O Ready to Ship
Keep your ET 200SP stations running with spare interface modules, I/O modules and base units.
Siemens S5 Spare Parts: Power Supplies, CPUs and I/O You Can Still Buy
Keep a SIMATIC S5 system running with tested power supplies, CPUs and I/O modules.
Siemens Communication Processors: Choosing a CP 343 or CP 443 for Your S7-300 or S7-400
Which communication processor you need depends on the network. Here is how to choose.
Building a Spare Parts Kit for Your Siemens PLC: A Buyer Checklist
Which spares to buy first, how many, and where to store them.
Price on Request: How Our Quote Process Works for Rare Siemens Parts
Some parts do not show a price online. Here is what happens when you ask.
Why Buy Tested Spares From an Independent Supplier? What to Expect from PLC North
What independent supply means, what we are and are not, and how to order with confidence.