How-To

HTTP Sender - Why does Publisher split the publishing data in two?

Beko — Tue, 06 May 2025 14:18:00 GMT

I use Mango version 4.5

Copying/recreating a Meta Data source from project to project

SGAF — Mon, 24 Feb 2025 17:14:13 GMT

@joeamiraglia Is there a procedure or guidance on how to do this? I tried and it gave me an error when trying to upload the exported meta data source.

Send publisher when datasource modbus fail

MattFox — Thu, 13 Jun 2024 14:55:51 GMT

@jcaballeroa given that the changes implemented appear to be mainly ui focused, I do not think you'll find a better way at this stage. Fox

BACnet publisher issues on RD121C unit

Lad — Tue, 24 Oct 2023 14:01:39 GMT

@Ruan-0 Good to hear the issue was solved!

How to create and save Json Data in the JSON Store via a global script

Sun, 15 Oct 2023 07:55:05 GMT

Modbus Sniffing Support

Turbo — Wed, 03 May 2023 10:31:03 GMT

@MattFox The wires we are sniffing carry modbus/RTU- The format within mango doesn't really matter. I was considering knocking another thing up using that SOCAT -> TCP device to just get an idea of what the points are being moved back and forth, then develop that into a Modbus read store/forward type of affair. We basically have a need to eavesdrop on other systems for whom the documentation is a bit minimal- It's a way to "get around" some legacy systems that have controllers that we can't just swap out for Mango, but still need to gather the data for display. So long as we can get the data into Mango, that'd be swell. I like @terrypacker 's idea of bypassing Modbus4J's waiting room.. I think I can get something working using the serial data source. I'm doing this for the first time next week, so we'll see how complex this is. I don't even have a full understanding (yet) of exactly how dense / fast / complicated the Modbus/RTU data implementation here actually is- It could only be a handful of points. I was just going to sniff first, using SOCAT to listen on the wire, and try and work out a solution based on what I see. I can't think I'm the only one trying to do Modbus Sniffing-type stuff with legacy systems, but then again, I see a lot of stuff that I do seems to be"I've never seen this type of thing before".. Cheers, -Greg

Serial Data Source Question (again)

Turbo — Sun, 30 Apr 2023 11:48:51 GMT

@MattFox Yeah- I tried that, too: I just can't get the the thing to receive anything over the serial port. It would be really nice to have a thread / template file available somewhere that says "Here's how you just get Raw Serial into Mango" to overcome the initial confusion over REGEX, which is absolutely common in these threads. People do what I did: They turn it on, try and get a "wildcard" RegEx to make sure mango is receiving something then go develop the interface from there. I have lots of serial customization coming in for our projects, and although the SOCAT <-> Serial TCP thing works okay, it would all be much simpler if I knew that the Mango Serial Device had a good easy starting point.

Getting total kWh from W readings

Turbo — Fri, 24 Feb 2023 12:12:48 GMT

@MattFox Fair enough- @nino-kurtalj said "Let's assume I have values in the W.".. Which I understood to mean he was using "watts" and it looks like he was trying to integrate watts over seconds in the metapoint he posted, using the now-last values as a sort of way to integrate watts into kwh. Also; @nino-kurtalj if you are integrating watts over time to get kwh, realize that you're accumulating errors as you go. It's much much better to use the raw kwh (or wh, or energy point) out of your metering device. This is because even integrated watts to kwh in mango, you're still limited by polling rate of your device. I run 1000's of points of energy and power in my system, and we can see the errors building up over time: Particularly when the power signal changes rapidly. The internal power meter kwh points (the "kwh" register you read out of your electrical meter) integrates at "electrical speed", so they catch those wiggles in real time: They basically sum every update of some high-speed V*A calculation. If you're reading watts and integrating that into wh youself, you can only get those values every time you ask the meter for it, so you'll miss the little wiggles that happen in between polls. If you're polling every second, this will probably be a fairly small error, but it grows over time, so if you go true up your integrated watt -> kwh point by comparing it to like the power company's billing meter, you'll always be off by a few percent. The slower the watt polling interval, the larger that energy error is at the end of the month. I run into this (and deal with this) all the time in the business I'm in, since some people insist on taking (for example) 15-minute average kilowatt, summing them up, calling it kwh, and then complaining to me that my energy points are wrong- They aren't. They're just integrating a low-frequency discrete time signal and comparing it with an integral at real time as the signal changes: They will not be the same. That error can cause lots of confusion, if you're (for example) trying to calculate your AC line losses over time- The error in going from 15-minute average power into kwh is generally larger than the actual losses in the cable you're trying to measure. We do use "integrated watts" from Mango for certain applications, but it's in places where that error is easy to deal with (such as by hourly comparisons, where you don't have time for that error to accumulate over months before comparing).

Use Nginx with mango as an SSL reverse proxy

MattFox — Wed, 15 Feb 2023 19:40:47 GMT

@tungthanh500 sounds websocket related, can you look at the console and see what errors appear when you try to do the steps you mentioned before? Fox

Uploading an Excel for Reports

tractorprovider — Wed, 21 Dec 2022 23:01:28 GMT

I think you need to install the updated version.

Parsing MQTT Payload for numeric data value

Curtis — Thu, 06 Oct 2022 18:35:27 GMT

@terrypacker Thanks. That worked.

Simulating or faking instrumentation

harrisautomation — Tue, 28 Jun 2022 02:27:42 GMT

@MattFox Thanks for the info. I will now dive into the meta data points!!

Error in sending email

ramhuzaini — Mon, 13 Jun 2022 03:33:28 GMT

Ok thanks for your advice. I will look at your suggestion. Thanks once again

Help request for HTTP Retriever

MattFox — Thu, 09 Jun 2022 15:33:39 GMT

Welcome, @keith-white said in Help request for HTTP Retriever: 1: 26.94°C 2: 27.69°C 3: 26.31°C 4: 27.25°C 5: 27.37°C 6: 26.44°C The best way around this is to provide us with a copy of raw output from the developer's console (ctrl + shift + i) element viewer and store it in code blocks for us to look at. [image: 3WYjZfW.png] Given how you've presented it means there could be different types of formatting that needs to be "filtered" out in order to retrieve the correct variables you are looking for. Assuming that the variables you have are exactly as we see them, here's the regex to get you started: (1:\s(\d+\.\d+)) Just replace 1: with 2: and so on [image: bAOP3p2.png] Let me know how you get on Fox

Remove Permissions from User Profile View

Tue, 31 May 2022 11:23:34 GMT

suggest best resources to learn Angular

Thu, 07 Apr 2022 06:30:58 GMT

ma-watch-list-chart Update with Datebar Disabled

Fri, 01 Apr 2022 08:52:02 GMT

Email send failure

till — Wed, 30 Mar 2022 02:23:44 GMT

Turns out that the SEND TEST EMAIL doesn't send a test email using the values that you just entered but using the values that are saved. So you cannot test before saving.

How to configure a static IP to the second Mango ES Port (enp2s0)

Wed, 23 Mar 2022 16:16:31 GMT

Data point multiplier

Wed, 09 Mar 2022 09:14:53 GMT

Mango connection to Ewon LAN

Mon, 07 Mar 2022 19:22:39 GMT

How to insert data to EndPoint in pass timestamp

Fri, 18 Feb 2022 19:26:17 GMT

How to query and display list of data points with event detectors attached

Sat, 12 Feb 2022 01:05:31 GMT

http builder buffer

DillFunlap — Tue, 25 Jan 2022 14:12:17 GMT

@mattfox Thanks Matt :). Nice to see some familiar faces here!

Accessing SOAP server and connecting it to the Mango's Datasource

aks — Tue, 04 Jan 2022 15:52:21 GMT

@NinoK Hi, I need to fetch data from a SOAP API, and trying to do this with scripts on Mango. I would really appreciate if you share your experiences or any code examples you have. Thanks.