Function Code 5 (05H) - Execute Operation - Veesta World V-PM2000 Series User Manual

VP-2040 Enhanced IED
V-PM2000 Series, Veesta Power Measurement
Instructions & User's Manual
Slave Response
Slave Address
Function Code
Byte Count
Data 1
Data 2
Data 3
CRC
8.5.2

Function Code 5 (05H) - Execute Operation

8.5.2.1 Message format and example
Master
Transmission
Slave Address
Function Code
Operation Code
Code Value
CRC
All rights reserved. Passing on and copying of this document, use and communication of its contents not permitted without written authorization.
Bytes
1
1
1
2
2
2
2
This function code allows the master to request the VP-2040 to
perform specific command operations. The command numbers listed
in the commands area of the memory map correspond to operation
code for function code 05. The operation commands can also be
initiated by writing to the commands area of the memory map using
function code 16. Refer to function 16 - performing commands
section for complete details.
Write and Send command to operate Relay-1 of VP-2040:
Bytes
1
1
2
2
2
Chapter 8 - Protocol and Communication
Example
Meaning
(hex)
01 Message from slave 01
03 Read registers
06 3 registers = 6 bytes
00 Value in address 41001 = 50
32
00 Value in address 41002 = 5
05
00 Value in address 41003 = 1
01
C9 CRC calculated by the slave
70
Example
Meaning
(hex)
01 Message for slave 1
05 Execution Operation
00 Relay 1 Command
00
FF ON Command
00
8C CRC calculated by the master
3A
Page 64 of 100