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Change of an
existing allocation
Example
7SJ61/62/63, 6MD63, 7UM61 PROFIBUS-DP – Communication profile
C53000-L1840-B001-02
If an information already routed on system interface shall get another
(empty) position in the PROFIBUS-DP message, then the "Object
properties" dialog window (ref. to Figure 6-2) has to be selected to this
("Properties ..." in the pop-up menu when pressing the right mouse
button in the row associated to the information in one of the columns
"Display text", "Long text" or "Type").
Dependent on the information type the following parameters are to
select in the register "Protocol info source" or "Protocol info destination"
of the "Object properties" dialog window:
Protocol info source
Parameter
The offset indicates the byte in the PROFIBUS-DP
Byte offset
output message in which the bit value is placed.
The bit positions at which the information is defined are
Bit mask
put on 1 in the byte value. The representation is an
decimal number.
Protocol info destination
Parameter
The offset indicates the byte in the PROFIBUS-DP
input message in which the bit value is placed.
Byte offset
The offset indicates the beginning of the most signifi-
cant byte in the message.
The bit positions at which the information is defined are
Bit mask
put on 1 in the byte value. The representation is an
decimal number.
The first byte in the message has the byte offset = 0.
The information "Error sum alarm" (ref. to Figure 6-2) is transferred after
routing to "Destination system interface" (i.e. PROFIBUS-DP input
message) at byte offset 5 (i.e. in the 6
1000
).
bin
Note
Only the positions in the PROFIBUS-DP message (byte offset, bit mask)
are offered to the selection on which the information type still can be
routed according to the mapping file and the current occupancy.
PROFIBUS-DP – Parameterization in DIGSI
Comments
Erläuterung
th
byte), bit position 2
Info types
IntSP, IntDP,
SC/DC, SF/DF
IntSP, IntDP,
SC/DC, SF/DF
Infoarten
SP, DP, Out,
IntSP, IntDP
MV, MVMV,
PMV
SP, DP, Out,
IntSP, IntDP
3
(8
=
dec
6-5
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