We currently have a slow and sluggish L71 with watchdog faults and are considering upgrading to an L8 series model. Due to a limited budget, we are exploring options on eBay for an L8x series, specifically aiming for an L84 or L85 model known for their faster performance. I have noticed variations like the L85E - what sets this apart from the standard L85 model? Additionally, some versions have the designation L85EK, which I believe indicates conformal coating. Shouldn't conformal coating be a standard feature for all models, eliminating the need for separate part numbers?
I would exercise caution when purchasing Rockwell parts on eBay as there have been instances of counterfeit products being sold. One example includes a powerflex drive that turned out to be fake, causing a lengthy resolution process. Rockwell's practices have been criticized for their frequency of epoxy-coating circuit boards, making DIY repairs difficult. However, this method may not be enough to prevent potential issues like short circuits, especially when external components like mechanical buzzers are installed near a PLC.
When it comes to purchasing control system hardware, it is highly advisable to avoid buying from unauthorized sources like eBay. Be cautious of listings for the 1756-L8x controller, as the correct model is actually the 1756-L8xE, with the 'x' denoting the controller's memory size and not its performance capabilities. It is crucial to only procure hardware from approved vendors authorized by the manufacturer to ensure authenticity and reliability. While opting for cheaper alternatives on eBay may seem tempting, the risk of receiving counterfeit or defective products is high. The cost of using such unreliable hardware can far exceed the initial savings, especially if it leads to system malfunctions or downtime. It is recommended to only purchase from trusted vendors to avoid such risks. In certain cases, such as personal use at home or testing purposes, buying control system hardware on eBay may be acceptable. However, vigilance is essential, particularly due to the proliferation of counterfeit products from China in the market. Prioritize purchasing from approved vendors to safeguard the efficiency and reliability of your control systems.
If all other sources fail and our production line is down, eBay becomes our final option. When the lead time from the approved vendor is too lengthy, we turn to suppliers like Radwell or EU Automation.
From my understanding, the 'E' in the L85E model typically indicates the inclusion of Ethernet/IP capability, which might be beneficial based on the specific needs of your operation. As for the L85EK model, you are correct that the 'K' denotes the presence of the conformal coating. This extra layer is meant to protect the equipment from hazardous or harsh conditions. However, since not all operational environments require this added protection, it isn't included as standard in order to save costs for those who don't need it. When shopping on eBay, I'd recommend a thorough cost/benefit analysis considering your specific operational needs and the environment your system will be functioning in.
It sounds like you're on the right track with your upgrade plans! The L85E differs from the standard L85 mainly in its enhanced ruggedness, as the "E" typically indicates it has been designed for extended environmental conditions, which is great for reliability in tougher situations. As for the L85EK with conformal coating, you're correct that this kind of protection should be more standard, especially for devices used in varying environments. However, different part numbers can help clarify specific applications and warranty terms, making it easier for customers to choose based on their precise needs. It’s definitely worth checking the details before making a purchase to ensure you get the best fit for your usage!
It's great that you're looking to upgrade to the L8 series! The L85E typically offers extended features like enhanced energy efficiency or specific output capabilities compared to the standard L85, so keep an eye on the specs to ensure it fits your needs. As for the L85EK, you're right that conformal coating provides extra protection, particularly in environments with humidity or dust. It would be ideal if all models came with it by default, but manufacturers often provide different designs to cater to various applications and cost considerations. If you're working within a budget, definitely weigh the benefits of the coated versions against your specific environment!
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Answer: Answer: Upgrading to an L8 series model such as the L84 or L85 offers faster performance compared to the older L71 model, potentially resolving issues like watchdog faults and improving overall system efficiency.
Answer: Answer: The L85E variation of the ControlLogix L85 model may offer specific enhancements or additional features tailored for certain applications. It's advisable to check with the manufacturer or seller for detailed specifications.
Answer: Answer: The 'EK' designation typically indicates that the model has conformal coating, which provides protection against environmental factors such as moisture, dust, and chemicals. While conformal coating may be a standard feature for some models, it is often specified in the part number to ensure clarity and compatibility for buyers.
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