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Millions of parts are available for same-day shipping and next-day delivery.
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DO Supply is a global leader in replacement parts for industrial automation equipment. Our mission is to elevate the standard of expert support, speed, and reliability for your need-it-now automation replacement and repair needs. Whether it's PLCs, drives, motors, HMIs, or more, you can count on us for the best service and fastest solutions.
Shop with confidence knowing that we offer fast shipping and best-in-class customer service. Explore our large inventory of in-stock automation parts backed by the guarantee of a 2-year DO Supply Warranty.
Save money on getting your automation parts repaired for less, backed by our 2-year DO Supply Warranty. We offer quality repairs at the best prices, carried out by expert technicians.
We want to buy your industrial automation surplus equipment, including PLCs, drives, motors, HMIs, and more.
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Automation equipment gets phased out all the time. We see it with PLCs, drives, and everything in between. However, obsolescence doesn’t mean the equipment is unusable or should be replaced immediately. This is the case for the SMC Dialog Plus soft starter family. Discontinued in 2014 as Rockwell phased out the mature product family, the successor to this soft starter family is the SMC-3 , SMC Flex , or the SMC-50 . The question is now whether the SMC Dialog Plus is still worth using or if its newer replacements are a better buy. There are many reasons why someone would want a legacy product over a newer offering. Sometimes it’s just easier to get the same product you know will be reliable and work for your system. Other times the cost of upgrading might not be worth the potential productivity increase of a newer system. Often, a facility needs a direct replacement as soon as possible when their old one breaks. There is no time to fit, program, and upgrade to newer hardware when every...
The problem that every OEM machine builder faces is what hardware to buy that will help power and control their system. For PLCs, they may face constraints with controller memory size, communication options, motion capabilities, and the size of the PLC. For many compact to moderately complex OEM machines, an Omron CP1 controller may already provide everything the design requires. Designed for machine level automation, the CP1 families capabilities range from basic control tasks to more capable applications involving communications, analog signals, and positioning. Omron has split the CP1 controller family into three different performance levels: The CP1E, CP1L, and CP1H. The CP1E is the most cost effective solution for simpler machines, the CP1L offers a middle ground between the three, and the CP1H is the high end model with additional speed and positioning capabilities. Order Omron CP1 CPU Units Here The Omron CP1E is the entry level controller in the CP1 family. It is designed to...
ControlLogix communication delays are often not the fault of a single component. In most field situations, the culprit is not a broken device but a design misalignment among the controller’s capacity, the choice of communication module, and the network built around it. A ControlLogix system is modular, and delays often trace back to a specific design decision: too many nodes on the I/O bus, the use of an antiquated bridge module, or a backplane routing configuration stretched beyond its performance envelope. Getting a strong grip on these mechanics and moving away from thinking of delay as just a generic “network problem” is what will distinguish a permanent fix from a temporary workaround. Every ControlLogix controller has an upper limit on the number of nodes and connections it can support, and exceeding that limit is one cause of communication lag. A node is any device added to the I/O configuration, and pushing a network beyond that count can cause delays that no amount of...