Hello everyone, I have a question about analog I/O that I need some help with. I am working on setting up panels with a PLC and remote nodes for a client, and these panels feature AB 1769 analog input modules. Although the customer has decided to switch to IOLink after the material was ordered, we still want to include traditional I/O modules for potential future use. I have connected the DC positive and negative wires for the digital inputs and outputs, but I am unsure about connecting the negative side of the 24V PSU to the COM terminals on the analog input module. Should I connect a wire from the negative to each COM terminal, or just one since they are internally tied together? Alternatively, should I leave them empty for now and address the wiring if they decide to use them later on?
It is recommended to keep these terminals vacant, as in the case of a 4-wire device utilizing its own power for future signal transmission, the COM terminal should be connected to the device.
Hello! It sounds like you have established an assiduous plan. Indeed, the COM channels are internally tied together on the 1769 series modules. So technically, you only need to connect a wire from the negative side of your PSU to one of the channels. In my personal experience though, for potential future troubleshooting ease and to ensure the best isolation practices, each channel should be grounded separately if feasible. As for whether to leave them empty or not, it's safe to wire them up now, and this could potentially save time later down the road.
It sounds like you've done a good bit of groundwork already! As for your question: since the COM terminals on the analog input module are internally connected, running a single wire from the negative side of the 24V PSU to one COM terminal is typically sufficient. However, it's wise to check the specific wiring diagrams for your AB 1769 module to ensure this holds true. Leaving them empty could potentially cause confusion later on if someone else continues the work. The wire also provides a clear signal path, reducing the possibility of signal noise interfering with the analog inputs. Good luck with your panel!
You'll want to make sure that the COM terminal is connected to the 24V PSU's negative terminal. However, considering the modules are internally tied, you only need one connection. By allowing the negative voltage to be the same reference, you ensure the power circuit is complete and grounded properly. If you plan on just leaving the modules for potential future use, you could leave them disconnected for now, but make sure to label them appropriately to avoid confusion when they are to be used. Also, remember to follow necessary precautions when working with power supplies to ensure safety.
Hey there! It's great that you're thinking ahead with your setup. For the AB 1769 analog input modules, you typically only need to connect the negative side of your 24V PSU to one of the COM terminals, as they are indeed internally tied together. However, if space allows and to avoid any potential issues down the line, you might consider connecting the negative to each COM terminal just to have things tidy and ready in case they decide to use the analog inputs sooner than expected. Leaving them empty for now wouldn't hurt, but ensuring they're properly wired might save you some headache later. Good luck with the project!
It’s great that you’re future-proofing the setup! For the AB 1769 analog input module, you should connect the negative side of the 24V PSU to each COM terminal. They’re typically tied together internally, but connecting to all of them ensures that you’re covered for any potential future use and can help avoid issues if the system ever needs to interpret the signal more accurately. If the analog inputs won't be used right away, it's still a good idea to wire them up now rather than coming back to it later, as it helps maintain consistent grounding throughout the system. Good luck with the installation!
Hey there! It sounds like you've got a pretty interesting setup on your hands. For the analog input modules, you typically only need to connect the negative side of the 24V PSU to one of the COM terminals, as they are usually internally tied together. However, it wouldn’t hurt to double-check the module's documentation to ensure that’s the case for your specific model. If you're not planning to use the analog inputs immediately, you could leave the COM terminals unconnected for now, but just keep in mind to address it later if they decide to utilize those channels. Good luck with your project!
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Answer: Answer: You can connect a wire from the negative side to each COM terminal, or just one since they are internally tied together. Alternatively, you can leave them empty for now and address the wiring if needed in the future.
Answer: Answer: Yes, it's possible to include traditional I/O modules alongside IOLink modules in your setup. Just ensure compatibility and proper wiring practices.
Answer: Answer: When wiring analog input modules, ensure proper connection of DC positive and negative wires, and consider the COM terminals for the 24V PSU negative side based on your specific setup requirements.
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