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7 Modbus/TCP – SmartWire-DT implementation
7.1 Overview of Modbus registers
74
SmartWire-DT Gateway EU5C-SWD-EIP-MODTCP
08/17 MN120003Z EN
www.eaton.com
7.1 Overview of Modbus registers
The input and output register space makes it possible to access the gate-
way's data in a structured manner. Tabelle 23 below lists the available regis-
ters, together with their contents and address ranges. A detailed description
of the registers is provided afterwards.
Table 23:
Overview of Modbus registers
Modbus
register, hexa-
decimal
Read/
Write
Data type
&Value
Description
SmartWire-DT input/output data
0x0000 - 0x03FF
R
WORD
0 - FFFF
Input data (input register, input status)
0x0800 - 0x0BFF
R/W
WORD
0 - FFFF
Cyclic output data (holding register, coil
status)
0x1012
R
WORD
0 - 5136
Bit-length of the digital outputs
0x1013
R
WORD
0 - 6400
Bit-length of the digital inputs
0x1017
R
WORD
1
Version of "mappings" register
Gateway device information
0x1000 - 0x100B
R
STRING
EU5C-SWD-EIP-
MODTCP
Name of the gateway
0x100C
Status of the gateway
0x100C: "Gateway-Status“”, page 76
Time Tracker
0x1020
R
WORD
0 - FFFF
Active time monitoring (in milliseconds)
0x1120
R/W
WORD
0 - FFFF
Default setting:
3000
(= 3 seconds)
Defined time monitoring (in milliseconds)
0x1121
R/W
WORD
0 - FFFF
Time monitoring for the "Reset" register
0x1130
R/W
WORD
"Modbus connection" operating mode
0x1131
R/W
WORD
0 - FFFF
Default setting: 0
Time monitoring for Modbus connection (in
seconds)
0 = No time monitoring
0x113C - 0x113D
R/W
WORD
Used to restore the Modbus connection
parameters
0x113E - 0x113F
R/W
WORD
Used to save the Modbus connection param-
eters
Acyclic SmartWire-DT data
0x8000 - 0x807F
Request space for acyclic service objects
Section “7.5 Acyclic data communica-
0x8080 - 0x80FF
Results space for acyclic service objects