CyberWrt модуль "Modbus"

[Warms]

Прошу помощи!
у меня tcnm arduino mega с ModBus скетчем
которая чудно работает и тестируется через QModBus
в ответ на чтение приходит следующее:
0x02 0x03 0x04 0x03 0xff 0x00 0x00 0xf9 0x47

но когда я подключаю свой переходник к mr3020 и пытаюсь считать данные вот что приходит.

2014.07.29 19:16:57 [INFO:14112] ( => ) 0x02_0x03_0x00_0x00_0x00_0x02_0xC4_0x38
2014.07.29 19:16:57 [INFO:14112] ( <= ) 0x03_0xFF_0x00_0x00_0xF9_0x47
2014.07.29 19:16:58 [INFO:14176] ( => ) 0x02_0x03_0x00_0x00_0x00_0x02_0xC4_0x38
2014.07.29 19:16:58 [INFO:14176] ( <= ) 0xF9_0x47
2014.07.29 19:16:59 [INFO:14240] ( => ) 0x02_0x03_0x00_0x00_0x00_0x02_0xC4_0x38
2014.07.29 19:16:59 [INFO:14240] ( <= ) 0x03_0xFF_0x00_0x00_0xF9_0x47
2014.07.29 19:16:59 [INFO:14304] ( => ) 0x02_0x03_0x00_0x00_0x00_0x02_0xC4_0x38
2014.07.29 19:17:00 [INFO:14304] ( <= ) 0xF9_0x47
2014.07.29 19:17:00 [INFO:14368] ( => ) 0x02_0x03_0x00_0x00_0x00_0x02_0xC4_0x38
2014.07.29 19:17:00 [INFO:14368] ( <= ) 0xF9_0x47
2014.07.29 19:17:01 [INFO:14432] ( => ) 0x02_0x03_0x00_0x00_0x00_0x02_0xC4_0x38
2014.07.29 19:17:01 [INFO:14432] ( <= ) 0x03_0xFF_0x00_0x00_0xF9_0x47
2014.07.29 19:17:02 [INFO:14496] ( => ) 0x02_0x03_0x00_0x00_0x00_0x02_0xC4_0x38
2014.07.29 19:17:02 [INFO:14496] ( <= ) 0xF9_0x47
2014.07.29 19:17:18 [INFO:14582] ( => ) 0x02_0x03_0x00_0x00_0x00_0x02_0xC4_0x38
2014.07.29 19:17:18 [INFO:14582] ( <= )
2014.07.29 19:17:18 [INFO:14646] ( => ) 0x02_0x03_0x00_0x00_0x00_0x02_0xC4_0x38
2014.07.29 19:17:19 [INFO:14646] ( <= ) 0x03_0xFF_0x00_0x00_0xF9_0x47
2014.07.29 19:17:19 [INFO:14710] ( => ) 0x02_0x03_0x00_0x00_0x00_0x02_0xC4_0x38
2014.07.29 19:17:19 [INFO:14710] ( <= )
2014.07.29 19:17:20 [INFO:14774] ( => ) 0x02_0x03_0x00_0x00_0x00_0x02_0xC4_0x38
2014.07.29 19:17:20 [INFO:14774] ( <= ) 0x03_0xFF_0x00_0x00_0xF9_0x47
2014.07.29 19:17:21 [INFO:14838] ( => ) 0x02_0x03_0x00_0x00_0x00_0x02_0xC4_0x38
2014.07.29 19:17:21 [INFO:14838] ( <= )
2014.07.29 19:17:21 [INFO:14902] ( => ) 0x02_0x03_0x00_0x00_0x00_0x02_0xC4_0x38
2014.07.29 19:17:21 [INFO:14902] ( <= ) 0x47
2014.07.29 19:17:22 [INFO:14966] ( => ) 0x02_0x03_0x00_0x00_0x00_0x02_0xC4_0x38
2014.07.29 19:17:22 [INFO:14966] ( <= )
2014.07.29 19:18:02 [INFO:15052] ( => ) 0x02_0x03_0x00_0x00_0x00_0x02_0xC4_0x38
2014.07.29 19:18:03 [INFO:15052] ( <= )
2014.07.29 19:18:03 [INFO:15116] ( => ) 0x02_0x03_0x00_0x00_0x00_0x02_0xC4_0x38
2014.07.29 19:18:03 [INFO:15116] ( <= )
2014.07.29 19:18:04 [INFO:15180] ( => ) 0x02_0x03_0x00_0x00_0x00_0x02_0xC4_0x38
2014.07.29 19:18:04 [INFO:15180] ( <= ) 0xF9_0x47
2014.07.29 19:18:05 [INFO:15244] ( => ) 0x02_0x03_0x00_0x00_0x00_0x02_0xC4_0x38
2014.07.29 19:18:05 [INFO:15244] ( <= ) 0x47
2014.07.29 19:18:05 [INFO:15308] ( => ) 0x02_0x03_0x00_0x00_0x00_0x02_0xC4_0x38
2014.07.29 19:18:05 [INFO:15308] ( <= ) 0x47
2014.07.29 19:18:06 [INFO:15372] ( => ) 0x02_0x03_0x00_0x00_0x00_0x02_0xC4_0x38
2014.07.29 19:18:06 [INFO:15372] ( <= ) 0x03_0xFF_0x00_0x00_0xF9_0x47
2014.07.29 19:18:07 [INFO:15436] ( => ) 0x02_0x03_0x00_0x00_0x00_0x02_0xC4_0x38
2014.07.29 19:18:07 [INFO:15436] ( <= )
2014.07.29 19:18:15 [INFO:15522] ( => ) 0x02_0x03_0x00_0x00_0x00_0x02_0xC4_0x38
2014.07.29 19:18:16 [INFO:15522] ( <= )
2014.07.29 19:18:16 [INFO:15586] ( => ) 0x02_0x03_0x00_0x00_0x00_0x02_0xC4_0x38
2014.07.29 19:18:16 [INFO:15586] ( <= ) 0x47
2014.07.29 19:18:17 [INFO:15650] ( => ) 0x02_0x03_0x00_0x00_0x00_0x02_0xC4_0x38
2014.07.29 19:18:17 [INFO:15650] ( <= )
2014.07.29 19:18:17 [INFO:15714] ( => ) 0x02_0x03_0x00_0x00_0x00_0x02_0xC4_0x38
2014.07.29 19:18:18 [INFO:15714] ( <= )
2014.07.29 19:18:18 [INFO:15778] ( => ) 0x02_0x03_0x00_0x00_0x00_0x02_0xC4_0x38
2014.07.29 19:18:18 [INFO:15778] ( <= )
2014.07.29 19:18:19 [INFO:15842] ( => ) 0x02_0x03_0x00_0x00_0x00_0x02_0xC4_0x38
2014.07.29 19:18:19 [INFO:15842] ( <= ) 0x47
2014.07.29 19:18:20 [INFO:15906] ( => ) 0x02_0x03_0x00_0x00_0x00_0x02_0xC4_0x38
2014.07.29 19:18:20 [INFO:15906] ( <= ) 0x47

может подскажете почему читает только часть информации и то невсегда?