Mapping Modbus Holding Registers - Danfoss iC7 Series Operating Manual

iC7 Series Modbus
Operating Guide

3.2 Mapping Modbus Holding Registers

A Modbus holding register is a bit binary data item which can be both read and written.
Registers can be mapped to a specific parameter by using the customization feature in MyDrive® Insight.
The first 19 holding registers are pre-mapped or reserved and cannot be changed. From location 20 onwards, registers can be map-
ped freely.
The parameter mapped to 1 register can be re-mapped to another register.
Table 14: Modbus Holding Registers
Location Reference Type
1 Parameter
2 Parameter
3 Parameter
4 Parameter
5 Parameter
6 Parameter
7 Parameter
8 Parameter
9 Parameter
10 Parameter
11 Parameter
12 Parameter
13 Parameter
14 Parameter
15 Parameter
16 Parameter
17 Parameter
18 Parameter
19 Parameter
20 ...
... ...
1.
In MyDrive Insight, go to Customization → Live → MODBUS → Holding Registers.
®
- a. To add a single register, click the + Add Item icon.
-
Danfoss A/S © 2023.09
N O T I C E
Reference (parameter number)
Fieldbus profile (1301)
Fieldbus Control Word (1335)
Fieldbus Main Reference (1339)
Reserved
Reserved
Reserved
Reserved
Reserved
Reserved
Fieldbus Status Word (1307)
Fieldbus Main Actual Value (1308)
Reserved
Reserved
Reserved
Reserved
Reserved
Reserved
Reserved
Reserved
...
...
Modbus Data Mapping
AQ456329149698en-000101 / 136R0334 | 23