Page Mode
CAN-CBM-DP
Software Manual Rev. 2.0
56
endconfig
The PLC has to be told whether another data block is
required for the definition of the Tx-identifiers and when
the Tx-definition will be finished.
- If another data block is required, the hexadecimal value
‘DDDDDDDD’ has to be specified as last Tx-identifier
definition. FB2 will then continue with the handling of
the following DB.
- If the last Tx-identifier has been defined, this is
indicated to the FB2 by specifying the hexadecimal
value ‘EEEEEEEE’ as last Tx-identifier definition. FB2
will then continue with the configuration of the Rx-
identifiers.
The length of the data blocks differs. The required length can be
determined from the number of required Tx-identifiers plus the four bytes
for the end flag.
Example:
You have to define 16 Tx-identifiers via DB11.
DB11
defines Tx-Ids 1 ... 10,
therefore requires a length of (10
6 + 4) = 64 bytes
End flag = DDDDDDDD hex
DB12
defines Tx-Ids 11 ... 16,
therefore requires a length of (6
6 + 4) = 40 bytes
End flag = EEEEEEEE hex
Note:
In FB2 the bit
FREIGABE
has to be set = 1!
READ_ADDRESS
Start address of the first input segment.
Via this parameter the PLC-start address of the first segment of the input
page is transferred to the PLC.
