HBM ClipX Bedienungsanleitung Seite 130

Operation via fieldbus
Name Format
Object dictio- UINT
nary read (Index)
request USINT
(Subin-
dex)
USINT
(Pad-
ding)
Object dictio- UINT
nary write (Index)
request USINT
(Subin-
dex)
USINT
(Pad-
ding)
UDINT
(Value)
128
Cycle in
Function
ms
1 Read an object in the object dictionary by
index and subindex. The padding byte has no
function – see
164.
The ClipX only reacts to changes in Index,
Subindex, Padding Byte or Value. It does not
react if Index = 0x0000 (no operation). To
repeat reading or writing, change the request
in at least one variable. For example, set the
index first to zero and then back to the desired
value.
You can only read data objects up to 32 bits in
size.
See also
controller" on page
the ClipX objects?" on page
1 Write an object in the object dictionary by
index and subindex. The padding byte has no
function – see
164.
The ClipX only reacts to changes in Index,
Subindex, Padding Byte or Value. It does not
react if Index = 0x0000 (no operation). To
repeat reading or writing, change the request
in at least one variable. For example, set the
index first to zero and then back to the desired
value.
You can only write data objects up to 32 bits in
size.
Though the value type is defined as UDINT,
you can also write in REAL values (FLOAT).
To do so, copy the value without a type con-
version (cast operation) to value! The table
below explains the bit assignment.
See also
controller" on page
the ClipX objects?" on page
A04643_04_X00_03 HBM: public
"Object dictionary" on page
"Data transfer from the ClipX to the
129, "How do you access
"Object dictionary" on page
"Data transfer from the ClipX to the
129, "How do you access
166.
166.
ClipX