Hello everyone, I have been facing difficulties in resetting a totalizer on an E300 flowmeter using HART protocol from my PLC (Studio 5000 version 32 with an L81e processor). I have consulted E&H's technical support twice, and they recommended adding an input board and sending an input to perform this task. However, I am skeptical about this solution. We also have E200 flowmeters, and we can reset their totalizer easily by using a different hex code. Any assistance or suggestions would be greatly appreciated.
If you're struggling to figure out how to do it without purchasing and wiring an input board, simply incorporate a totalizer into your logic. This alternative method can help you achieve your desired outcome without the need for additional equipment.
Do you wonder why you are utilizing and resetting the internal totalizer on the meter instead of simply totalizing within the processor? Gain insight on the best approach for tracking data efficiently.
lmscar12 inquired: Why are you choosing to utilize and reset the meter's built-in totalizer instead of simply using the processor for totalization? How can I address this issue? The totalizer reset functionality allows the customer to have control over when to reset it, whether it is never, once a month, daily, or annually. This variability makes it challenging to find an efficient coding solution instead of directly importing data from the meter.
lmscar12 posed the question: "Why are you utilizing and resetting the meter's built-in totalizer instead of solely totalizing in the processor?" How can I approach this situation? The totalizer reset function allows customers to control their resetting preferences. They may choose to reset it regularly or not at all, making it unpredictable and challenging to create a coding solution instead of retrieving data directly from the meter.
The Totalizer function block in RsLogix allows you to input the Process Variable (PV) readings from a flow meter, enabling you to continuously calculate and store the total flow volume. Implementing this function requires basic ladder logic for resetting the totalizer and transferring the accumulated data to the desired location.
Hi there, I've encountered a similar issue before. For the E300, it's actually not that straightforward as the E200. The input board solution recommended by E&H's technical support might seem drastic, but I've found that it can help bypass certain customizability issues present in the HART protocol. To reset a totalizer, you need a mechanism that can send the correct request - essentially a similar hex code as you do with E200, but a board can help you handle it. It's a bit of a workaround rather than a direct solution, but it has worked for me in the past.
It seems like you're in quite the pickle! Have you considered the possibility of upgrading your HART protocol? Sometimes, certain functionalities can be accessed via updated versions or even different variations of the same protocol. It's interesting that the E200 flowmeters respond to a different hex code, revealing possible discrepancies between the different series. You might want to explore that avenue further. Alternatively, while you might be hesitant about the input board suggestion, it could be worthwhile to test it on a small scale before ruling it entirely out. In any scenario, always remember that troubleshooting such intricate issues often requires a good bit of trial and error, so don't lose heart!
I've had the same kind of issue with the E300 before. If I remember correctly, even though the E300 and E200 models seem similar, there're quite substantial differences in their firmware particularly on the resetting part. The support team suggestion may not be the best cost-effective solution, but probably the most straightforward one. What worked for me was to circumvent the HART protocol altogether and replace it with a Modbus setup instead. It's more flexible and allowed me to reset without having to use an additional input board - albeit with a cost of some additional programming effort. You might want to look into that, if it fits your application.
Hey! I've worked with E300 flowmeters and have seen similar issues. One thing that worked for me was deploying a Fieldgate FXA520 (HART to Ethernet gateway), and then using that to signal the totalizer reset from the PLC. It was a little complex but it did the job. Conversely, if this feels too involved and you want a more tailored solution, you might want to look into custom scripts for the HART command you're trying to implement, except it can be rather labor-intensive. Regardless of my experience, keep in mind that E300 and E200 models may utilize different command sets, so applying the same hex code may not work as you expect.
Hey! I understand your frustration with the E300 totalizer reset. It might be worth checking if there's a specific HART command or a different function code that you can send directly from your PLC, similar to what you do with the E200 flowmeters. Sometimes the documentation can be a bit unclear, so ensuring you have the latest firmware for both the E300 and your PLC could also help. If you’re still having trouble, maybe reaching out to the community forums for similar experiences could shed light on any unique workarounds others have encountered. Good luck!
Have you tried checking if the E300 flowmeter has a specific configuration or command set for resetting the totalizer over HART that might differ from the E200? Sometimes, flowmeters have unique commands or flags that need to be enabled or adjusted in the settings. Also, make sure your coding adheres to the correct HART specification for the E300, as using the right hex code can often be the key to successful communication. If it's not too much trouble, you might consider reaching out to other users in the community who might have faced similar issues – you could discover some practical workarounds!
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Answer: 1. How can I reset the totalizer on an E300 flowmeter using HART protocol from a PLC? - To reset the totalizer on an E300 flowmeter using HART protocol from a PLC, E&H's technical support recommends adding an input board and sending an input to perform this task. However, some users have reported success in resetting the totalizer on E200 flowmeters using a different hex code.
Answer: - An input board is recommended by E&H's technical support to reset the totalizer on an E300 flowmeter using HART protocol as it facilitates sending an input to perform this task. This approach may differ from the method used for E200 flowmeters.
Answer: - While E&H's technical support suggests adding an input board, some users have reported success in resetting the totalizer on E200 flowmeters using a different hex code. It may be worth exploring different approaches or consulting with other users for alternative solutions.
Answer: - Resetting the totalizer on an E300 flowmeter directly from Studio 5000 version 32 with an L81e processor
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