Danfoss VLT AutomationDrive FC 360 Design Manual page 107

Design Guide | VLT® AutomationDrive FC 360
Table 46: Address/Registers (continued)
Bus address
Bus register
7 8
8 9
9 10
19 20
29 30
1) Value written in the Modbus RTU telegram must be 1 or less than the register number. For example, Read Modbus Register 1 by writing value 0 in the telegram.
How to Control the Drive
9.8.9
This section describes codes which can be used in the function and data fields of a Modbus RTU telegram.
Function Codes Supported by Modbus RTU
9.8.10
Modbus RTU supports use of the following function codes in the function field of a telegram:
Table 47: Function Codes
Function
Read coils
Read holding registers
Write single coil
Write single register
Diagnostics
Get comm. event counter
Write multiple coils
Write multiple registers
Report follower ID
Read/Write multiple registers
Encapsulated Interface Transport
Danfoss A/S © 2024.01
PLC register Content
(1)
40008 Last error regis-
ter
40009 Index pointer
40010 Parameter 0-01
Language
40020 Parameter 0-02
Motor Speed
Unit
40030 Parameter
0-03 Regional
Settings
Access Description
Read only Address of register with which last
error occurred, refer to WHAT 38296
for details.
Read/Write Sub-index of parameter to be ac-
cessed. Refer to WHAT 38297 for de-
tails.
Dependent on Parameter 0-01 Language (Modbus
parameter ac- register = 10 parameter number) 20
cess bytes space reserved for parameter
in Modbus map.
Dependent on Parameter 0-02 Motor Speed Unit
parameter ac- 20 bytes space reserved for para-
cess meter in Modbus map.
Dependent on Parameter 0-03 Regional Settings
parameter ac- 20 bytes space reserved for para-
cess meter in Modbus map.
Function code (hex)
1
3
5
6
8
B
F
10
11
17
2b
AJ435824192086en-000101 / 130R1295 |
105