Data Transfer between arduino and Sensor using LabView Commands problem

[surajparab945]

I want to do two way communication between labview and arduino. For that I am using easy transfer Library which is really helpful. This library work like polling mechanism for eg: if there is any received data then send it.

I am able to communicate arduino with switch and sensor only when I comment the Send_SensorData function in loop. When I am uncommenting it it does not receive anydata. I don't know what is the problem. Is there any clock issue between arduino and sensor.

Here is the snippet of my code`
//create two objects
EasyTransfer Msgin, Msgout;

//give a name to the group of data
RECEIVE_DATA_STRUCTURE rxdata;
SEND_DATA_STRUCTURE txdata;

static long CycleTime = 10;
static boolean rgb_state = true;
static unsigned long start_time;

void loop() {

if (Msgin.receiveData()) {

// Start only once to start cycle time
if (rxdata.command == RGB_Sensor_Cycle_Time) {
CycleTime = rxdata.data;

}

Send_SensorData(); // Uncomment: command will not be received from LV and if commented reception of command.
}

void Send_SensorData() {

uint16_t red, green, blue, c;
unsigned long current_time;
unsigned long elapsed_time;

current_time = millis();
elapsed_time = current_time - start_time;

if (elapsed_time >= CycleTime && rgb_state == true ) { //&& rgb_state == false

for (int current_sensor_number = 0 ; current_sensor_number < 1; current_sensor_number++) {

  //Read Data for Sensors 0-7
  tcaselect(current_sensor_number);
  tcs.getRawData(&red, &green, &blue, &c);
  txdata.data1 = map(red, 0, 800, 0, 255),
  txdata.data2 = map(green, 0, 800, 0, 255);
  txdata.data3 = map(blue, 0, 800, 0, 255);
  Msgout.sendData();
// rgb_state = false;
}
start_time = current_time;

}
}
`