Hello everyone, I have recently assembled a 1734-AENTR along with 4 IB8s. I have a couple of questions regarding the base backboards (1734-TBS). Question 1: What is the purpose of the dials on the base backboards? Do they need to be adjusted, such as one at the first Input card and so on, or should they be left as is? Question 2: Currently, I am not experiencing any faults and am able to successfully ping/communicate. However, when I physically short +24 to any of the input terminals, the light indicator on the card illuminates but the XXXX:I.Data[#] values in the PLC remain unchanged. Have I misconfigured something in my setup? Your help is greatly appreciated.
PO44O inquired about the purpose of the dials on the base backboards (1734-TBS) and whether they need adjustment, particularly on the Input cards. These dials serve as a primitive hardware keying method, ensuring proper alignment with corresponding notches on the IB8 module. Each module type has a unique notch orientation to prevent incorrect placements. If your IB8 modules are already installed correctly, there is no need for further adjustments. In another query, PO44O reported having no faults and successful communication with the PLC. However, upon shorting +24 to input terminals, the indicator lights up on the card but the XXXX:I.Data[#] values do not update. This issue indicates a need to review the tags for the IB8s, specifically in the format XXXX:Slot#:I.InputPoint#. By focusing on the correct tags, you can ensure accurate data retrieval within the PLC system.
I understand now that it's necessary to manually create IBS in the Tree instead of them being automatically generated onto the AENTR controller tags. Thank you for the clarification! Everything is functioning properly now.
Hello! To answer your first question, the dials on the 1734-TBS backboards are actually necessary for setting DeviceNet node addresses, but if you're using Ethernet/IP (like with your 1734-AENTR), they don't need to be adjusted at all. So, for your use case, just leave them as is. As for your second question, it sounds like your input card may not be properly configured. Although you're receiving an indication with the light, this illumination alone doesn't necessarily translate to the PLC receiving the input, often because the input card and the PLC have mismatched configurations. To solve this, make sure all the settings for your IB8 input card match those in your PLC program for the I/O. You might need to configure or reconfigure this in your PLC. I hope this helps!
Hey there! The dials on the 1734-TBS backboards are typically used for setting specific address or configuration parameters, so it's a good idea to refer to the manual for your specific application to see if adjustments are needed. As for the issue with the input values not updating, it might be related to how the PLC is configured to read those inputs. Ensure that the input data is mapped correctly in your PLC program and check if there’s any logic preventing updates. Also, double-check the wiring and configurations to make sure everything is set properly. Let us know how it goes!
Hey! For your first question, the dials on the 1734-TBS backboards typically adjust the input response time and other settings to tailor the performance of your inputs, but it’s often best to leave them at their factory settings unless you have specific requirements. As for your second question, if the indicator lights up but the data values aren’t updating in the PLC, double-check the configuration of your input module in the PLC software. Sometimes it’s a simple mapping issue or a configuration parameter that needs to be set to read the input changes. Make sure the I/O connections and the tag assignments are correctly configured! Hope that helps!
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Answer: 1. What is the purpose of the dials on the 1734-TBS base backboards for 1734-AENTR setups? - The dials on the base backboards are used for addressing the input cards. They do not need to be adjusted unless specifically required for your setup.
Answer: - If the light indicator on the input card illuminates but the data values in the PLC do not change, it could indicate a misconfiguration in the setup. Double-check the configuration settings and wiring to ensure proper communication and data transfer.
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