       DEBUG_PRINTLN("Response not required");
     }
   }
-
+  
   DEBUG_WRITETIME();
   DEBUG_PRINTLN();
 }


// Initialize ENC28J60 Ethernet controller
void initEthernet() {
  Ethernet.begin(mac, ip);
  server.begin();


EthernetServer server = EthernetServer(TCP_PORT);
EthernetClient client;
boolean clientConnected = false;
unsigned long commTime;
const byte modbusHeader[MODBUS_HDR_LEN] = { 
  0x00, 0x00, // Transaction identifier
  0x00, 0x00, // Protocol identifier
