Hello everyone, I am in need of guidance on selecting the right cable for a 50-foot DeviceNet run in teck. Although the baud rate is uncertain, I anticipate it to be around 125. It is crucial to consider both the length and baud rate when choosing the cable. Any recommendations on what to look for would be greatly appreciated. Additionally, for daisy chaining the devices once the teck is connected to the panels, I assume a shielded cable would be the most suitable option. Thank you for any assistance provided.
Looking for DeviceNet-rated cable? Your local Rockwell supplier should be able to provide it, or you can also check with Belden for options. DeviceNet cables are essential for smooth industrial automation processes.
DeviceNet cables are specifically designed with characteristic impedance, wire gauge, and color codes to ensure compatibility with DeviceNet systems. Leading vendors such as Commscope, Belden, and Rockwell offer cables tailored for this purpose. The DeviceNet media planning guide has been a valuable resource for years. It is crucial to use the correct cables and follow installation guidelines, including properly installing terminating resistors, to optimize system performance. Avoid using generic cables like 16 gauge teck cable, as it may not deliver the intended results. For more information, refer to the DeviceNet media planning guide available at https://literature.rockwellautomation.com/idc/groups/literature/documents/um/dnet-um072_-en-p.pdf.
For valuable assistance, refer to this resource provided by ODVA. Access the ODVA Cable Guide for important information at https://www.odva.org/wp-content/uploads/2023/05/PUB00027R1_Cable_Guide.pdf.
Hello there! A 50-foot run should operate perfectly under a baud rate of 125. The critical caveat here is that the total cable length and number of nodes can restrict the maximum baud rate. It seems you've kept this in mind already! Regarding your daisy-chaining question, ideally, you'd want to select a cable type that combines superior EMI shielding with flexibility for this setup; something like Belden 3084A cable would work pretty well. It's always recommended that a Belden-certified installer does the termination to keep the warranty intact. Make sure to observe color coding for DeviceNet as specified by ODVA: Blue for CAN-H, White for CAN-L, Drain wire shield to the coupling device, and Red for V+. Also, stay within the cable impedance value between 100 and 120 Ohms to avoid reflection issues. Happy wiring!
Hey, for a DeviceNet system running at 125 Kbps, a 50 feet cable shouldn't pose any problems. The standard thick or thin DeviceNet cabling should work without issues. Thick cable can handle up to 500 meters at that baud rate, and thin cable could handle about 100 meters. For daisy chaining, yes, you're on the right track. Shielded twisted pair cables are the standard due to the EMI/RFI protection they offer, minimizing signal interference. Just ensure it's 24 AWG for longer runs.
Hello! The ideal cable for a DeviceNet run would typically be a thick, shielded twisted pair -- ideally 18 or 20 AWG, in order to handle both the length and the probable baud rate. For the run you've specified, you might want to give Belden 3084A or 3085A a shot. They've served me well for similar jobs. As for daisy chaining the devices, yes, shielded cables are almost always your best bet, as they significantly reduce the risk of signal interference. Remember to keep your termination resistors at both ends of the trunk line too! Hope that helps.
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Answer: When choosing a cable for a DeviceNet run, it is important to consider factors such as the length of the run and the anticipated baud rate, which in this case is around 125.
Answer: It is crucial to consider both the length of the run and the baud rate when choosing a cable for a DeviceNet installation.
Answer: Yes, using a shielded cable is generally recommended for daisy chaining devices in a DeviceNet setup to help minimize interference and ensure reliable communication.
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