IM02601006E www.eaton.com B-16
IQ 150S/250S B: Modbus Map
B.5.4.2: Modbus Function Code 0x23
QUERY
Field Name
Example (Hex)
Slave Address
01
Function
23
Starting Address Hi
C3
Starting Address Lo
51
# Points Hi
00
# Points Lo
7D
Repeat Count
04
RESPONSE
Field Name
Example (Hex)
Slave Address
01
Function
23
# Bytes Hi
03
# Bytes Lo
E0
Data
...
Function Code 0x23 is a user defined Modbus function code, which has a format similar to
Function Code 0x03, except for the inclusion of a "repeat count." The repeat count (RC) is used to
indicate that the same N registers should be read RC number of times. (See the Number of
Repeats bullet on page B-14.)
Summary of Contents for IQ 150S
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