How AMU attribute logging works?

Hi Satishkumar

#1 : Yes, you can use string values in AMU, but you might have some limitations if you try to use it as the status or if you want to use special values for alarming, also I never tried them in Troubleshooter (the trending/graph tool). For logging all the tag values, yes this part works as expected. The way it works in AMU is the values will be in Valuestream for a few moments and then AMU will transfer them to the AttributeValue table of the other database.

#2 : Same as with other tags : go in the Configuration -> Equipment -> Attributes screen, create an attribute, select your tag.

#3 : Like I said in #1 I don't remember how it works in the Troubleshooter/trend. But in the Asset Card (the card with the 9 attributes), it should display the values automatically, without you needing to do anything else. There may be a limit to the number of characters shown in the screen.

Here is an example I made recently (look at StringTag1) : 

To accomplish this, I simply created an equipment in the Configuration -> Equipment screen and created 2 attributes : one for my string tag and one for my integer tag. And then in the Asset Card tab I selected them both and also selected the status.

#4 : I actually was debugging this a few days ago, and it's not working the way it's supposed to because of a limitation (as mentioned in point #1). The problem is it uses the status' tag, but forces to convert it into boolean. So this conversion recognizes the words "true" and "false", but all other texts are converted to False. Similarly, numbers only work with 0 (false) and not-0 (true). So using different words (like "Active" and "Issue") would require a workaround. I haven't tested this, but here is my suggestion :

- In the configuration screen, link your tag as the Status tag.

- In Composer remove its tag binding (on RunningStaus_MCC).

- Create an extra property on the Thing that receives the same tag

- Create a Subscription for this new extra property (input = DataChange) and in the code of the subscription transform it into "true" or "false" based on your rule (Active vs Issue) and in the code save the true/false result into RunningStatus_MCC.

#5 : I see 3 ways of doing this, but nothing easy with AMU : 

- Use the RTPPM software (or DPM). This is a feature that's part of RTPPM. You should be able to find multiple statistics based on this in RTPPM.

- (Using only AMU) use the Troubleshooter trending tool, you can also export its data to Excel. However I don't think it gives you the total. You can also configure an alarm and check the alarms in Troubleshooter, but again I suspect it won't give you the total uptime & downtime. I suggest you set up a test equipment and try the Troubleshooter to see how you can use it best.

- (Using only AMU) you could make a custom service that gets your wanted time range and equipment, and query the data from the SQL tables. You could either query AttributeValue (raw tag values) and do some calculations, or the sum of times in the AlarmEvent table if you configure it as an Alarm. If you want, you can even create a custom Mashup and add it to the main menu.