Eaton IQ 150S, User & Installation Manual

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IM02601006E www.eaton.com B-9
IQ 150S/250S B: Modbus Map
0x03C8
0x1234
Signed Int, 2 byte
NOTE:
The sum of all descriptor sizes must equal the number of bytes in the data portion of the
Historical Log record.
Log Status Block:
The Log Status Block describes the current status of the log in question. There is one header block
for each of the logs. Each log's header has the following base address:
Log Base Address
Alarms: 0xC737
System: 0xC747
Historical 1: 0xC757
Historical 2: 0xC767
Historical 3: 0xC777
• Max Records: The maximum number of records the log can hold given the record size, and sec-
tor allocation. The data type is an unsigned integer from 0 - 2^32.
Bytes Value Type Range # Bytes
0-3 Max Records UINT32 0 to 4,294,967,294 4
4-7 Number of Records Used UINT32 1 to 4,294,967,294 4
8-9 Record Size in Bytes UINT16 4 to 250 2
10-11 Log Availability UINT16 2
12-17 Timestamp, First Record TSTAMP 1Jan2000 - 31Dec2099 6
18-23 Timestamp, Last Record TSTAMP 1Jan2000 - 31Dec2099 6
24-31 Reserved 8