11. Connection to other devices
11.4 Modbus TCP
Function code
Modbus
Modbus
reg.#
Operand Description Remark
0x06
(Write Single
Register)
and
0x10
(Write Multiple
Register)
1001 MW1 Marker word 1
… … …
1512 MW512 Marker word 512
2001 NW1 NET marker
word 1
… … …
2032 NW32 NET marker
word 32
Table 106: How the Modbus registers and write data for the easyE4 Modbus server are mapped
Please note that little-endian is used when converting bytes to words in
an easyE4. If you want to implement Modbus communications with big-
endian, you will need to make the necessary adjustments.
See also
easySoft 7 Help
easyE4 11/18 MN050009 EN www.eaton.com
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