Questions & Answers

We have a transfer pump that moves product between process stages.Historically the transfer operation takes approximately 8–10 minutes. Over the last few months operators have reported that some transfers appear to be taking longer, although the issue is not consistent enough to trigger alarms.Available historian data includes: Pump running status Motor current Flow rate Product level Discharge pressure I would like to investigate whether the pump performance is gradually degrading over time and identify which process variables would be most useful for monitoring this.What TrendMiner workflow would you recommend to: Detect gradual performance deterioration. Compare current pump performance against historical operation. Build an early warning system before transfer times become unacceptable.

I am using a Value Based Search on a recipe step tag with the condition StepNo >= 3000 AND StepNo <= 5000 to identify cooking periods. Step 7000 is the transfer phase and should not be included. However, the search results appear to extend beyond the cooking phase and display step-change markers for Step 7000. Is there a way to force the result boundaries to stop when the tag leaves the 3000–5000 range, or should I create a formula tag such as CookingPhase = 1 when StepNo is between 3000 and 5000 and search on that instead?

A heat exchanger is used to heat product before entering production. Over time: Product outlet temperature decreases. Steam consumption increases. Production throughput drops. Questions: How can I use TrendMiner to quantify heat exchanger efficiency over time? How can I determine when cleaning is required? Can I automatically detect fouling before it impacts production?

Hello Community,We are experiencing a strange issue on one of our trend charts and are hoping someone can point us in the right directionWe are trending a PLC tag for a pump/valve that strictly has two operating states: 1 (Idle)and 2 (Running). The data flows from the PLC to our historian, and we are visualizing it inside TrendMiner.The Issue:Instead of seeing a clean block or step chart alternating between 1 and 2, the trend line is occasionally jumping or spiking to values like 5 or 6. None of these values exist in the PLC logic for this device

I am trying to set up a critical control point (CCP) real-time monitor for a sterilization process on a fermenter line.My goal is simple: I want an alarm to trigger on our operator dashboard if the tank temperature stays above 120 outside of a strict 19-minute to 25-minute window. (i.e., if it is under-sterilized or over-sterilized).There are no fields, dropdowns, or advanced criteria boxes on this screen that allow me to specify the 19-minute or 25-minute duration limits. It only allows me to select the Type (Information/Alarm) and type a text description. i want to check if it the time window exceeded and also didnt got up to the time window frame 

Hi,I have a question regarding the monitor and the context items being created.I created a monitor based on a saved search for the fermenter CCP sterilization process. The monitor is configured to create context items when the search conditions are met.My concern is about how the context items are updated over time.For example, if I initially create and save the ContextHub view using a time range from June 4 to June 9, and later new sterilization events occur on June 10, June 11, and beyond: Will the monitor automatically create new context items for these future events? Will the ContextHub dashboard automatically display these newly created context items? Or is the ContextHub view limited to the original time range that was selected when it was created? If I want operators to continuously see new CCP violations (e.g., sterilization periods that are too short or too long), do I need to configure the ContextHub view in a specific way? I just want to make sure the monitor continues

One of our continuous processes has a “lift” step with a flow that follows a typical pattern with a spike and a ramp down. The lifts are a relatively short duration ~20 minutes and therefore happen several times a dayI created a fingerprint from several of the most representative lifts using layers resulting from a similarity search .Question: because lifts happen at irregular time intervals, how can I properly align the fingerprint to coincide with the beginning of a given lift on a TrendHub view? Do I need to have some kind of trigger?

I want to create a graph which represents a typical day for my process, as there is a pattern in the values during each day. So I would like to average the values at a specific time during the day, for the last 30 days or the last year, and create this average value for each timepoint during the day. How would I go about this? The only way I could find to average values is over a single continuous time window, which is not what I want unless I could average several of these time windows and make each window small enough to result in a clear typical day graph (1 minute or 10 minutes for example). 

Is there to a way to see the unique identifier of a context item in a context field ?

Hello our PI tags have different names in the database & searching for them is not that conveniet. For example if a tagname: 1111/Pump1 would exist, I would like te alias it to a certain name & then be able to search for that name at any point. Is this option possible?

Hello,I am currently using Trend Miner and would like to check if a Japanese language version is available (either UI or documentation). if that is not available, then I would like to ask, if there are any plans to support a Japanese version of Trend Miner.If anyone has information or experience with this, I would greatly appreciate your guidance.It would be very helpful for users who prefer Japanese.Thank you for your consideration.  

Does a plot operation use the same sampling mode as an index operation? 

Hi Guys, Im looking for some help, I have set up my first monitor on a digital tag, the monitor is working and giving me notification within the monitor section but im not receiving a email. I have set up the email alert in the monitor, im looking for some advice on things to check to see if there’s a Trenminer setting stopping it working.  Thanks Jake

I want to create an export of al my indexed tags, similar what the index manger showshow can I do that.This list can help me cleaning up the indexing of our system

I was adding upper/lower control limits to a TrendHub view. The only way we knew how was to go to the 'Formula' tab and create a new tag that is a number (i.e. 45 to indicate the maximum). A couple questions: Is there a better way to do this? Is there a way to modify the Upper/Lower Control limit to be dotted/dashed line to distinguish itself from the other 'real' tags?  

Ich möchte die MTTR (MeanTimetoRepair) in einem Dashboard abbilden. Diese soll gebildet werden wenn ein Grenzwert über oder unterschritten wird und wenn er wieder im Normalbereich ist. Wie mache ich das am besten?   I want to map MTTR (Mean Time to Repair) in a dashboard. It should be calculated when a limit value is exceeded or undercut and when it returns to the normal range.How do I best do this?

I am making a dashboard where I want to show the most critical values of the plant. For every tile I want to make conditions to make it green if good and red if bad. I want to use flexible borders based on a tag. For example the maximum temperature of a vessel depends on the product we make. So I want to make the conditions for making the temperature of the vessel green or red dependent on a separate tag that changes when the product changes. The conditions in the dashboard should therefore be dependent on another tag, not a fixed value. Is this possible?

I have a tank which is emptied regularily ~1 per day. I want to calculate the amount of total material in the tank over a year. No flow meter is available directly.How can I set this up as an output directly in trendMiner? 

Est-ce possible de créer un Tag qui calcule les heures du mois précédent​​​​​​​“Is it possible to create a tag that calculates the hours of the previous month?” translated by AI.

I configured a value-based search and added calculations to the search. I created context items based on the search results and assigned a context type with associated context fields mapping to the value-based search calculations. Question is: if I configure a monitor using that value-based search and get the monitor to create context items with this specific context type , I see the context fields being listed with optional drop-down boxes. What do I do with these? Will the context item automatically fill-in the results of the calculations to the context fields?

I would like to create a tag that tracks the hourly frequency that a block valve activates.  For example, The valve opens 20 time an hour.  How can I trend this performance metric? The valve tag is a digital tag.

I have discrete tags that I would like to plot. Today, they are plotted in the staircase format. Would it be possible to just plot the points when the data comes in? 

We have tags available where we monitor fa oilusage on a shift or Daily basis. After the shift the tags goes back to zero. I like to create a graph or table to monitor the oilusage per shift for the last 5 7 days

We recently upgraded to TrendMiner 2025.R3.0-15 and noticed that users with access to shared content can also delete it.In our previous PI Vision setup, deletion was typically restricted to higher-level accounts. Is it possible in TrendMiner to limit deletion rights to specific roles while still allowing broader create/edit access?Also, are there recommended best practices (permissions, folder structure, etc.) to prevent accidental deletion of shared content?

Hi all Is there a way to use a single cursor across multiple views in DashHub, similar to the functionality available in PI Vision? See below snapshotsThank you in advancePeter