Doc# E166703 E-13
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
• Number of Repeats: Specifies the number of repeats to use for the Modbus Func-
tion Code 0x23 (35). Since the MP200 unit must pre-build the response to each log
window request, this value must be set once, and each request must use the same
repeat count. Upon reading the last register in the specified window, the record
index will increment by the number of repeats, if auto-increment is enabled. Sec-
tion E.5.2 has additional information on Function Code 0x23.
0 Disables auto-increment
1 No Repeat count, each request will only get 1
window.
2-8 2-8 windows returned for each Function Code
0x23 request.
Log Retrieval Window Block:
The Log Retrieval Window block is used to program the data you want to retrieve from
the log. It also provides the interface used to retrieve that data.
Registers: 0xC351 - 0xC3CD
Size: 125 registers
• Window Status: The status of the current window. Since the time to prepare a win-
dow may exceed an acceptable modbus delay (1 second), this acts as a state flag,
signifying when the window is ready for retrieval. When this value indicates that
the window is not ready, the data in the window should be ignored. Window Status
is Read-only, any writes are ignored.
0 Window is Ready
Bytes Value Type Format Description # Bytes
0-3 Offset of
First Record
in Window
UINT32 ssssssss nnnnnnnn
nnnnnnnn nnnnnnnn
ssssssss -
window sta-
tus nn…nn -
24-bit record
index num-
ber.
4
4-249 Log Retrieve
Window
UINT16 246
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