Address (Communication Address) - Delta Electronics AC Motor Drive VFD-E User Manual

Chapter 4 Parameters|
RTU mode:
CRC CHK High

3.2 Address (Communication Address)

Valid communication addresses are in the range of 0 to 254. A communication address equal
to 0, means broadcast to all AC drives (AMD). In this case, the AMD will not reply any
message to the master device.
00H: broadcast to all AC drives
01H: AC drive of address 01
0FH: AC drive of address 15
10H: AC drive of address 16
:
FEH: AC drive of address 254
For example, communication to AMD with address 16 decimal (10H):
ASCII mode: Address='1','0' => '1'=31H, '0'=30H
RTU mode: Address=10H
3.3 Function (Function code) and DATA (data characters)
The format of data characters depends on the function code.
03H: read data from register
06H: write single register
08H: loop detection
4-116
LRC CHK Hi LRC check sum:
8-bit check sum consists of 2 ASCII codes
LRC CHK Lo
END Hi End characters:
END1= CR (0DH), END0= LF(0AH)
END Lo
START A silent interval of more than 10 ms
Address Communication address: 8-bit address
Function Command code: 8-bit command
DATA (n-1)
Contents of data:
to
n×8-bit data, n<=40 (20 x 16-bit data)
DATA 0
CRC CHK Low
CRC check sum:
16-bit check sum consists of 2 8-bit characters
END A silent interval of more than 10 ms
Revision June 2008, 04EE, SW--PW V1.11/CTL V2.11