
Parker Hannifin S.p.A. - Divisione S.B.C. LVD User’s Manual
88
Broadcast message to write a parameter from Master to LVD
Broadcast data write
Data length
7 bytes
Field Name
Cmd & Len
Data Address
Data
Contents
5 bit command and 3 bit length
16 bit data address
32 bit data
Identifier
ID2
ID1
ID0
-
-
-
-
-
ID10 ID9
ID8
ID7
ID6
ID5
ID4
ID3
1
1
1
X
X
X
X
X
0
0
1
0
0
0
1
1
Data
In the case of parameter writing, this portion contains the value of the
parameter.
In the case of modification of one or more bits, contains the mask of the bits to
be modified.
Data Address This is the address of the parameter involved in the operation (see the table in
the heading
Serial addresses and parameter lengths
).
Cmd & Len
Sub-field
Value
Significance
Cmd [0..4]
0
not used
1
Write
2
SET bit Pr = Pr .OR. Data
3
RESET bit Pr = Pr .AND. (.NOT.Data)
4
TOGGLE bit Pr = Pr .XOR. Data
5 - 31
not used
Len [5..7]
0- 4
Number of significant bytes in Data field