EmonESP does not connect to emonCMS

stephan20 · 2019-02-24T20:49:49.960Z

Robert.Wall:

(I was guessing you have a 4-wire system as you are in Germany.)

@Robert.Wall, yes, as I am in Germany we are using a four wire system. Does this affect the function of the sketch, even if there are just 3 live wires? I always thought the 3-phase sketch is exactly made for the the field of application that I am using in right now?!

Robert.Wall · 2019-02-24T20:56:57.679Z

Yes it is - AND for the 3-phase system where there is no neutral wire.

In your 4-wire system, you measure the voltage from L1 – N, and L2 is 120° later and L3 is 120° later than that.

In a 3-wire system, you can only measure the voltage L – L, so you treat L3 as the neutral and measure voltage L1 – L3, and then L2 lags 60° behind L1.

But because the ‘neutral’ or L3 carries part of the power, the individual power for L1 and L2 has no meaning in reality, and that is why it adds CT1 & CT2 powers and prints CT2 power = 0.

#define WIRES 4-WIRE or #define WIRES 3-WIRE is the switch that changes the timing and the print output.

stephan20 · 2019-02-24T21:11:05.015Z

@Robert.Wall, thank you for your explanation.
Actually I have set the switch to
#define WIRES 4-WIRE
I just looked into the last sketch I have uploaded to my TX. So that shouldn’t be the culprit

Robert.Wall · 2019-02-24T21:21:03.348Z

It defaults to 4-WIRE, and both are the same anyway up to “CT2:” and then 3-wire prints “0.0” and your prints a number.

So I think EmonESP is putting the comma on the front.

borpin · 2019-02-24T21:25:18.722Z

Robert.Wall:

So I think EmonESP is putting the comma on the front.

@Robert.Wall, could @stephan20 monitor what the TX is passing to the EmonESP to check? (I’m sure there is but…)

Robert.Wall · 2019-02-24T21:30:47.903Z

Sorry, I can’t help there. All I did to add the ESP output format was steal it from another sketch. If there’s an FTDI connector free, or a means to tap onto however the ESP connects to the emonTx, it might be possible to use the Arduino monitor to watch what’s going down the wire.

borpin · 2019-02-24T21:32:55.794Z

Could you unplug the EmonESP to view the data as a test?

borpin · 2019-02-24T21:34:13.826Z

It seems there may be a debug function in the EmonESP so you can see what it has received

github.com

openenergymonitor/EmonESP/blob/76813312439576f67cefc00eb70e1e58496e33b1/src/input.cpp#L55-L55

    
      
          DEBUG.printf("Got '%s'\n", data.c_str());

stephan20 · 2019-02-24T21:36:23.734Z

@borpin, you mean logging the serial output of the TX with a FTDI. Sure that shouldn’t be a problem, but I guess I will do this another day because my TX is mounted in the neighbors house. It’s a little too late now for working there

stephan20 · 2019-02-24T21:42:09.879Z

borpin:

github.com

openenergymonitor/EmonESP/blob/76813312439576f67cefc00eb70e1e58496e33b1/src/input.cpp#L55-L55
DEBUG.printf("Got '%s'\n", data.c_str());

How do I get this data? Connect a ftdi to the emonESP while it is connected to the TX and then start the serial monitor? I am a bit confused

borpin · 2019-02-24T21:43:58.862Z

stephan20:

How do I get this data?

Sorry, I don’t know, I just looked at the code and could see it printed out (somewhere) what it had received. Trying to work out what it then does with it, but cpp is not my strenght

pb66 · 2019-02-24T21:47:03.519Z

Robert.Wall:

So I think EmonESP is putting the comma on the front.

The current version on GitHub differs to what you posted above

github.com

openenergymonitor/emontx-3phase/blob/V1.4.0/src/src.ino#L939-L949


      
          #if defined EMONESP && !defined SERIALOUT
            #if WIRES == 3-WIRE
            Serial.print(F("ct1:")); Serial.print(realPower1+realPower2);            // These for compatibility, but whatever you need if the receiver is configured to suit. 
            Serial.print(F(",ct2: 0.0"));
            #else
            Serial.print(F(",ct1:")); Serial.print(realPower1);
            Serial.print(F(",ct2:")); Serial.print(realPower2);
            #endif    
            Serial.print(F(",ct3:")); Serial.print(realPower3);
            Serial.print(F(",ct4:")); Serial.print(realPower4);
            Serial.print(F(",vrms:")); Serial.print(Vrms);

in the current GitHub version, 4-WIRE (ie the #else) has a leading comma on “,ct1:” so it looks like its coming from the sketch, unless another version is in play and it’s just coincidentally the same error.

stephan20 · 2019-02-24T21:54:56.939Z

That is exactly the sketch that I am using on my emonTX. Looks like the leading comma in the else section is the problem

borpin · 2019-02-24T21:57:01.321Z

And therein lies the issue

Update to 3-Phase PLL sketch emonTx

An incorrect space character in the formatted output (3-wire system) for the ESP8266 has been corrected. There is no other change. MD5 Hashes: emonTx_3Phase_PLL_V1.6.zip 9b109f26f7a0ec81c8798d20e185cf4c emonTx_3Phase_PLL.ino : 71adf0fc1c51dcfaf54ddde9f85a2971 config.ino: ae9cc9c91f67ed3a6b47e49cc1f47b32 rfm.ino: 44a0b048b14e5e013625809736853c57 emonTx 3-phase PLL User Doc.pdf: 9ca0eef63994381fe3ee7474778005f8 emonTx_3Phase_PLL_V1.6.zip (152.4 KB)

Version control…

stephan20 · 2019-02-24T22:27:51.416Z

So, let me try to upload the V1.6 to my TX on tuesday. Hopefully this will fix my CMS problem So far, thank you to all contributors

Lesley.Persyn · 2019-02-25T08:31:49.907Z

Yes, there is also a typo issue with 4-WIRE setting in the emonESP code. Check after ‘else’… (line before else was corrected yesterday.)

#if defined EMONESP && !defined SERIALOUT
#if WIRES == 3-WIRE
Serial.print(F("ct1:")); Serial.print(realPower1+realPower2);            // These for compatibility, but whatever you need if the receiver is configured to suit. 
Serial.print(F(",ct2:0.0"));
#else
Serial.print(F(",ct1:")); Serial.print(realPower1);
Serial.print(F(",ct2:")); Serial.print(realPower2);
#endif

TrystanLea · 2019-02-25T08:48:22.312Z

borpin:

Version control…

I have updated the git repository to mirror @Robert.Wall’s v1.6 and taken the oppertunity to use git annotated tags: Release v1.6 fix for incorrect space character in the formatted output · openenergymonitor/emontx-3phase · GitHub Did I get it right @borpin?

Lesley.Persyn · 2019-02-25T09:34:02.860Z

This topic was the 4-WIRE comma issue
This topic was the 3-WIRE space issue

borpin · 2019-02-25T22:30:28.150Z

TrystanLea:

Did I get it right @borpin?

Looks like it although it only ever shows me the latest tag from the command line for some reason.

Just one thing to be careful of, be consistent in the format you use. v1.6, is different to V1.6 which is different to 1.6 and previous versions were 1.x.0

It doesn’t matter what you use, just be consistent.

stephan20 · 2019-02-25T23:12:30.182Z

Just wanted to tell you, that everything works fine after flashing the fixed V1.6 to the TX.
The emonESP connects correctly to the emonCMS