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E166703
E-4
E: Retrieving Logs
Electro
Industries/GaugeTech
The Leader In Power Monitoring and Smart Grid Solutions
Electro
Industries/GaugeTech
The Leader In Power Monitoring and Smart Grid Solutions
Card Current States:
E.4: Block Definitions
This section describes the Modbus Registers involved in retrieving and interpreting an
MP200 unit Log. Other sections refer to certain 'values' contained in this section. See
the corresponding value in this section for details.
NOTES:
• “Register” is the Modbus Register Address in 0-based Hexadecimal notation. To
convert it to 1-based decimal notation, convert from hex16 to decimal10 and add
1. For example: 0x03E7 = 1000.
• “Size” is the number of Modbus Registers (2 byte) in a block of data.
Historical Log Programmable Settings:
The Historical Logs are programmed using a list of Modbus Registers that will be cop-
ied into the Historical Log record. In other words, Historical Log uses a direct copy of
the Modbus Registers to control what is recorded at the time of record capture.
To supplement this, the programmable settings for the Historical Logs contain a list of
descriptors, which group registers into items. Each item descriptor lists the data type
of the item, and the number of bytes for that item. By combining these two lists, the
Historical Log record can be interpreted.
For example: Registers 0x03E7 and 0x03E8 are programmed to be recorded by the
historical log. The matching descriptor gives the data type as float, and the size as 4
bytes. These registers program the log to record "Primary Readings Volts A-N."
Historical Log Blocks:
Start Register:
0x7917 (Historical Log 1)
0x79D7 (Historical Log 2)
0x7A97 (Historical Log 3)
Bit
7
6
5
4
3
2
1
0
Value
Out 4
State
Out 3
State
Out 2
State
Out 1
State
In 4
State
In 3
State
In 2
State
In 1
State