Number Of Repeats; Log Retrieval Window Block; Window Status - Electro Industries Shark 200 Installation & Operation Manual

• Number of Repeats: Specifies the number of repeats to use for the Modbus Func-
tion Code 0x23 (35). Since the meter must pre-build the response to each log win-
dow 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 B.5.4.2 has additional information on Function Code 0x23.
NOTE: This must be set to 4 for waveform retrieval.
0
1
2-8
Bytes Value
0-3 Offset of
First Record
in Window
4-249 Log Retrieve
Window

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:
Size:
• 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.
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Electro Industries/GaugeTech
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Disables auto-increment
No Repeat count, each request will only get 1
window.
2-8 windows returned for each Function Code
0x23 request.
Type Format
UINT32 ssssssss nnnnnnnn nnnnn-
nnn nnnnnnnn
UINT16
0xC351 - 0xC3CD
125 registers
B: Modbus Map and Retrieving Logs
Description
ssssssss -
window sta-
tus nn...nn -
24-bit record
index num-
ber.
#
Doc E149701
# Bytes
4
246
B-15