I am building a dimmer, I am unable to understand some of the abbreviations used in the 2.0Lib. The serial output is as below.

TSP:MSG:SEND 2-2-255-255 s=255,c=3,t=7,pt=0,l=0,sg=0,ft=0,st=bc:
Starting sensor (RNNNA-, 2.0.0)
TSM:INIT
TSM:RADIO:OK
TSP:ASSIGNID:OK (ID=2)
TSM:FPAR
TSP:MSG:SEND 2-2-255-255 s=255,c=3,t=7,pt=0,l=0,sg=0,ft=0,st=bc:
TSM:FPAR
TSP:MSG:SEND 2-2-255-255 s=255,c=3,t=7,pt=0,l=0,sg=0,ft=0,st=bc:
TSM:FPAR
TSP:MSG:SEND 2-2-255-255 s=255,c=3,t=7,pt=0,l=0,sg=0,ft=0,st=bc:
TSM:FPAR
TSP:MSG:SEND 2-2-255-255 s=255,c=3,t=7,pt=0,l=0,sg=0,ft=0,st=bc:
!TSM:FPAR:FAIL
!TSM:FAILURE

Could somebody please help me understand the terms used like TSP, TSM, FPAR.

My code is as below, I am unable to register the node in Domoticz. Could somebody be kind enough to help me and point out if anything is wrong here.

// Enable debug prints
#define MY_DEBUG

// Enable and select radio type attached
#define MY_RADIO_NRF24
//#define MY_RADIO_RFM69

#include <SPI.h>
#include <MySensors.h>  
#include <Dimmer.h>

#define CHILD_ID_FAN 1
#define FAN_CONTROL_PIN 7 //pin to control the fan/light
#define EPROM_LIGHT_STATE 1
#define EPROM_DIMMER_LEVEL 2

#define LIGHT_OFF 0
#define LIGHT_ON 1

Dimmer dimmer(FAN_CONTROL_PIN, DIMMER_RAMP,2,50);

#define SN "Fan Speed Controller"
#define SV "1.0"

int LastLightState=LIGHT_OFF;
int LastDimValue=100;

MyMessage lightMsg(CHILD_ID_FAN, V_STATUS);
MyMessage dimmerMsg(CHILD_ID_FAN, V_PERCENTAGE);

void setup()  
{ 
  //Retreive our last light state from the eprom
  int LightState=loadState(EPROM_LIGHT_STATE); 
  if (LightState<=1) {
    LastLightState=LightState;
    int DimValue=loadState(EPROM_DIMMER_LEVEL); 
    if ((DimValue>0)&&(DimValue<=100)) {
      //There should be no Dim value of 0, this would mean LIGHT_OFF
      LastDimValue=DimValue;
    }
  }

  dimmer.begin();
  
  //Here you actualy switch on/off the light with the last known dim level
  SetCurrentState2Hardware();
  
  Serial.println( "Node ready to receive messages..." );  
}

void presentation() {
  // Send the Sketch Version Information to the Gateway
  sendSketchInfo(SN, SV);

  present(CHILD_ID_FAN, S_DIMMER );
}

void loop()      
{
}

void receive(const MyMessage &message)
{
  if (message.type == V_STATUS) {
    Serial.println( "V_LIGHT command received..." );
    
    int lstate= atoi( message.data );
    if ((lstate<0)||(lstate>1)) {
      Serial.println( "V_LIGHT data invalid (should be 0/1)" );
      return;
    }
    LastLightState=lstate;
    saveState(EPROM_LIGHT_STATE, LastLightState);
    
    if ((LastLightState==LIGHT_ON)&&(LastDimValue==0)) {
       //In the case that the Light State = On, but the dimmer value is zero,
       //then something (probably the controller) did something wrong,
       //for the Dim value to 100%
      LastDimValue=100;
      saveState(EPROM_DIMMER_LEVEL, LastDimValue);
    }
    
    //When receiving a V_LIGHT command we switch the light between OFF and the last received dimmer value
    //This means if you previously set the lights dimmer value to 50%, and turn the light ON
    //it will do so at 50%
  }
  else if (message.type == V_PERCENTAGE) {
    Serial.println( "V_DIMMER command received..." );  
    int dimvalue= atoi( message.data );
    if ((dimvalue<0)||(dimvalue>100)) {
      Serial.println( "V_DIMMER data invalid (should be 0..100)" );
      return;
    }
    if (dimvalue==0) {
      LastLightState=LIGHT_OFF;
    }
    else {
      LastLightState=LIGHT_ON;
      LastDimValue=dimvalue;
      saveState(EPROM_DIMMER_LEVEL, LastDimValue);
    }
  }
  else {
    Serial.println( "Invalid command received..." );  
    return;
  }

  //Here you set the actual light state/level
  SetCurrentState2Hardware();
}

void SetCurrentState2Hardware()
{
  if (LastLightState==LIGHT_OFF) {
     Serial.println( "Light state: OFF" );
     dimmer.off();
  }
  else {
     Serial.print( "Light state: ON, Level: " );
     Serial.println( LastDimValue );
     dimmer.set(LastDimValue);
  }

  //Send current state to the controller
  SendCurrentState2Controller();
}

void SendCurrentState2Controller()
{
  if ((LastLightState==LIGHT_OFF)||(LastDimValue==0)) {
    send(dimmerMsg.set(0));
  }
  else {
    send(dimmerMsg.set(LastDimValue));
  }
}