Can you just paste the bytes for your request and a reply here?
ie:

Request:
01 02 03 04 05 06 07 08 09 0A 0B 0C 0D 0E 0F 10 00 05 00 00 00 00 00

Reply:
01 02 03 04 05 06 07 08 09 0A 0B 0C 0D 0E 0F 10 01 01 00 00 00 00 0E 18 CA 7F 00 00 01 00 00 00 00 00 00 00 00