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IM02601006E www.eaton.com B-14
IQ 150S/250S B: Modbus Map
• Number of Repeats: Specifies the number of repeats to use for the Modbus Function Code 0x23
(35). Since the meter 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-incre-
ment is enabled. Section B.5.4.2 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 window 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
0xFF
Window is Not 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
Содержание IQ 150S
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