Technical data

R911305038 / 01 | Rexroth VCP-Operating Concept Electric Drives and Controls | Bosch Rexroth AG 6-7
3964 RK512
If you enter the value FFH for the coordination flag number and the
value FH for the coordination flag bit into the protocol parameters, the
monitoring function is deactivated.
6.1.1.7 Special Features of the 3964R Protocol
A write-access to data is possible in data blocks only. That means, only
the data type DW allows a direct write-access to the respective desti-
nation.
To make sure you are still able to write-access all of the destinations,
write the data into the data block you specified in the protocol parame-
ters.
In this case, you need to add the destination specification (4 bytes) in
front of the actual data.
Destination Information for a Write-Access via a
Data Block
The destination information specified within the 4 bytes transmitted
before the actual data is decoded as folllows.
8
9 Coordination Flag No. FF = Without Coordination Flag
10 Coordination Flag Bit xF = Without Coordination Flag
Byte No. Meaning ASCII Hex Comment
Fig. 6-7: Data transmission telegram header for the 3964 procedure
Data Type Mnemonics Byte 1
(Com-
mand)
Byte 2
(Num-
ber)
Byte 3 Byte 4
Input Bit E 10 1 Byte Bit No. Offset
Input Byte EB 1 n Bytes Offset
Input Word EW 1 n Bytes Offset
Input Double-Word ED 1 n Bytes Offset
Output Bit A 11 1 Byte Bit No. Offset
Output Byte AB 2 n Bytes Offset
Output Word AW 2 n Bytes Offset
Output Double-Word AD 2 n Bytes Offset
Flag Bit M 12 1 Byte Bit No. Offset
Fig. 6-8: Specifying the destination information for a write-access via a data block