Preset Multiple Registers; Hex ) - Danfoss VLT Micro Drive FC 51 Series Operating Instructions Manual

5 Modbus RTU
Response
The normal response is an echo of the query, returned after the register contents have been passed.
Field Name
Slave address
Function
Starting Address HI
Starting Address LO
No. of Points HI
No. of Points LO
Error Check (CRC)
Table 5.1: Normal response frame
5

5.5.6 Preset Multiple Registers (10

Description
This function presets a value into a sequence of holding registers.
Query
The query message specifies the register references to be preset. Register addresses start at zero, i.e. register 1 is addressed as 0.
Example
Field Name
Slave address
Function
Starting Address HI
Starting Address LO
No. of Registers HI
No. of Registers LO
Byte count
Write Data HI (Register 7339)
Write Data LO (Register 7339)
Write Data HI (Register 7340)
Write Data LO (Register 7340)
Error Check (CRC)
Table 5.1: Request frame
Response
The normal response returns the slave address, function code, starting address, and quantity of registers preset.
Field Name
Slave address
Function
Starting Address HI
Starting Address LO
No. of Registers HI
No. of Registers LO
Error Check (CRC)
Table 5.1: Normal response frame
34
VLT
Example (HEX)
01
06
00
1D
00
01
-
)
HEX
Write 65535 (655.35s) to PNU734 (4-bytes) mapped to 0 x 1CAB
Example (HEX)
01
10
1C
AB
00
02
04
00
00
FF
FF
-
Example (HEX)
01
10
1C
AB
00
02
-
®
MG.02.A4.02 - VLT is a registered Danfoss trademark
®
Micro Drive FC 51 Operating Instructions