TDP3521 "npname" AREA(area) CHECKSUM MISMATCH(expected<>actual)
Explanation:
The checksum provided with the request or response data did not match the checksum calculated for the data. Both values as well as the hexadecimal structure type and sequence number for the rejected structure are provided. If further information is available, a TDP3515 message follows.
Generated By:
TDP.
Notes:
This message appears only in TDPSNAP, not with normal messages.