HCS DAC-42A - CMD = 6, Master Write; CMD = 6, Master Write Single Parameter (7 Bytes); CMD = 6, Response from DAC-4 X(A) (7 Bytes)

DAC-42(A)-x-PN
Page 44
DAC-42(A)-x-PN Manual
Revision: 1.0 22.01.2024
8.3 CMD = 6, Master Write
8.3.1 CMD = 6, Master Write single parameter (7 bytes)
Write first…
Byte Abbreviation Description
0
TADR
Telegram
address, defined by the user, Range 0..255, 0..0xFF
1
SADR
= 01
Slave address
2
CMD
Command: 6 = Write single parameter by the master
3
IDH
High byte parameter ID
4
IDL
Low byte parameter ID
5
DATH
High byte of parameter value
6
DATL
Low byte of
parameter value
…Write last
TADR Telegram address, defined by the Profinet-Master.(Set by the user)
SADR 1 = standard (single slave)
CMD Command: 6 = Write single parameter by the master
IDH,IDL H-Byte and Low-Byte of parameter-ID in HEX
0x0000 .. 0x00B0 = Valid ID-Range
DATH,DATL Two data bytes in HEX, without decimal sign
0x7FFF == +32767
0x8000 == -32768
8.3.2 CMD = 6, Response from DAC-4x(A) (7 bytes)
Write first…
Byte Abbreviation Description
0
TADR
Telegram address, defined by the
write command, Range 0..255, 0..0xFF
1
SADR
Slave address
2
CMD
Command: 6 = Write single parameter by the master
3
IDH
High byte parameter ID
4
IDL
Low byte parameter ID
5
DATH
High byte of second analogue value
6
DATL
Low byte of first
analogue value
…Write last
TADR Telegram address, defined by the Profinet-Master.( Set by the write command )
SADR Slave address, 1 = standard (single slave)
CMD Command: 6 = Write parameter by the master
IDH,IDL H-Byte and Low-Byte of parameter-ID in HEX
0x0000 .. 0x0109 Valid ID-Range
DATH,DATL Two data bytes in HEX, without decimal sign
0x7FFF == +32767
0x8000 == -32768