Mitsubishi FX3U-32DP, User Manual

Page: 55 / 74

49
FX
3U
-32DP PROFIBUS-DP Interface Block
User’s Manual
6 Buffer Memory Allocation
6.36 Diagnostic/Alarm Immediate Send Flag [BFM #1300 Bit0]
1
Int
roduct
ion
2
Specifi
cations
3
Inst
al
lati
on
4
Wi
rin
g
5
C
omm.
Out
lin
e on
PRO
FIB
US-
D
P
Ne
two
rk
6
B
uff
er M
em
ory
Al
loc
ati
on
7
Para
mete
r S
ett
ing
an
d N
etw
or
k
C
onf
igu
rat
ion
8
E
xam
ple
P
rogr
am
9
D
iagnos
tics
6.36 Diagnostic/Alarm Immediate Send Flag [BFM #1300 Bit0]
BFM Access : Read / Write
Data consistency is necessary for transferring Diagnostic/Alarm(Status) Data.
To send the Diagnostic/Alarm(Status) Data to the DP-Master, turn ON BFM#1300 Bit0. The 32DP transfers
the content in BFM#1301 to BFM#1322 to the DP-Master.
The Diagnostic/Alarm Immediate Send Flag (BFM#1300 Bit0) turns OFF automatically according to the
following settings:
• When the diagnostic data is transferred as Alarm Message (BFM#1299 Bit0 is OFF)
This flag turns OFF after the DP-Master acknowledges all of the Alarm Messages.
• When the diagnostic data is transferred as Status Message (BFM#1299 Bit0 is ON)
This flag turns OFF after the 32DP sends all of the diagnostic data.
When BFM#28 or BFM#29
≠
0, the 32DP immediately sends the Diagnostic/Alarm(Status) Data, regardless
of this flag (BFM#1300 Bit0).
The 32DP allocates the content of BFM#28 and BFM#29 to BFM#1307 and BFM#1308.
6.37 Diagnostic/Alarm (Status) Data Area
The Subsections below detail the Data Storage Area of the Diagnostic/Alarm (Status) Message.
Data consistency is necessary for the user-diagnostic and alarm (status) messages.
6.37.1 Master Address [BFM #1301]
BFM Access : Read Only
After the DP Network configuration, this BFM shows the DP-Master address.
6.37.2 ID Number [BFM #1302]
BFM Access : Read Only
The identification mark uniquely identifies each DP-Master.
BFM No. Name Description Access
BFM
#1301
Master Address
This BFM shows the DP-Master address.
→
For details, refer to Subsection 6.37.1
Read Only
BFM
#1302
Ident Number
This BFM shows the DP-Master Ident number.
→
For details, refer to Subsection 6.37.2
Read Only
BFM
#1303
Block Length
This BFM shows the diagnostic alarm data length.
ExtDiagData [0]
Read Only
BFM
#1304
Alarm / Status Type
This BFM shows the Alarm/Status type.
ExtDiagData [1]
→
For details, refer to Subsection 6.37.4
Read Only
BFM
#1305
Slot Number
This BFM shows the Slot Number. The 32DP's Slot
Number is always "0".
ExtDiagData [2]
→
For details, refer to Subsection 6.37.5
Read Only
BFM
#1306
Specifier
This BFM shows the Alarm/Status specifier, Additional
Acknowledge, and Sequence Number.
ExtDiagData [3]
→
For details, refer to Subsection 6.37.6
Read Only
BFM
#1307
Extended Alarm Data
This BFM shows the Extended alarm data.
ExtDiagData [4, 5]
→
For details, refer to Subsection 6.37.7
Read Only
BFM
#1308
Extended Alarm Data
This BFM shows the Extended alarm data.
ExtDiagData [6, 7]
→
For details, refer to Subsection 6.37.8
Read Only
BFM
#1309 to
#1322 Extended
Diagnostic/Alarm (Status)
Data Area This is the user-defined data storage area for the user
diagnostic data. A maximum of 28 Bytes can be stored.
ExtDiagData [8 to 35]
Read / Write