Eaton PowerXL DE1 series, Руководство пользователя

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7 Modbus RTU
7.4 Operating mode Modbus RTU
DE1 variable speed starter 09/14 MN040011EN www.eaton.com
121
7.4.3 Register mapping
Register mapping makes it possible to process, in DE1 variable speed
starters, the contents in the following table via Modbus RTU.
7.4.3.1 Input process data
The input process data is used to control the DE1 variable speed starter.
Group ID range Assignment of the ID numbers
Parameter 129 - 175 List of parameters ￫ Chapter 11 “List of parameters”, page 169
Input process data 1 - 4 ￫ Section 7.4.3.1, “Input process data”, page121
Output process data 6 - 24 ￫ Section 7.4.3.2, “Output process data”, page123
￫
Certain master controllers (e.g., PLCs) may feature an ID offset
of +1 in the interface driver used for Modbus RTU
communications.
￫
The decimal point is not taken into account when processing
values!
For example, a DE1 variable speed starter motor current of
0.3 A will be transmitted as 003
dec
on Modbus, while a current
of 2.2 A will be transmitted as 022
dec
.
ID Designation Scaling Factor Unit
1 Field bus command – Binary code
2 Field bus speed reference value 0.1 Hz
3 reserved – –
4 Modbus ramp time 0.01 s