System information

Section 2. Protocols and Packet Types
2-22
One-Way Data Message Body (MsgType 0x14):
Name Type Description
MsgType Byte Message type code (0x14)
TranNbr Byte Transaction number
TableNbr UInt2 Table number
TableDefSig UInt2 Table definition signature
RecNbr UInt4 Record number of this record
IsOffset bit 7 A flag that, if true, indicates this message
contains a fragment of a single record.
NbrOfRecs 15 or 31 bits Number of Records (15-bit value) in the
RecFrag field or if the parameter IsOffset is
true, it is the byte offset (31-bit value) into the
current record where this fragment starts. The
offset is based from the beginning of the
TimeOfRec field.
{ TimeOfRec } Sec, USec, or NSec Time of the first record relative to Jan 1, 1990.
This field exists for interval data but only
exists on the first fragment of a fragmented
record.
RecFrag Byte [ ] Records as specified by the collection
parameters or if the IsOffset field is true, this is
a fragment of a record. Note: A time field
exists preceding each record on event driven
data.
2.3.4.5 Table Control Transaction (MsgType 0x19 & 0x99)
Use this transaction to administer tables in the datalogger.
Table Control Command Body (MsgType 0x19):
Name Type Description
MsgType Byte Message type code (0x19)
TranNbr Byte Transaction number
Security Code UInt2 Security code of the datalogger
CtrlOption Byte Control option code:
0x01: Reset the table and trash existing records
0x02: Roll over to a new file if the tables are
managed in files
Table Control Response Body (MsgType 0x99):
Name Type Description
MsgType Byte Message type code (0x99)
TranNbr Byte Transaction number
RespCode Byte Response Code:
0x00: Complete
0x01: Permission denied
0x0f: Option not applicable
0x10: Invalid table name