#define UDP_PORT 50000
#define MAX_UDP_PACKETS 100

#define PAYLOAD_REQUEST 0x01, 0x08, 0x00, 0x00, 0x05, 0x01, 0x01, 0x01, 0x05, 0x22, 0x01
#define PAYLOAD_RESPONSE 0x01, 0x04, 0x00, 0x00, 0x05, 0x01, 0x01, 0x02