Technical data

6-140 Bosch Rexroth AG | Electric Drives and Controls Rexroth VCP-Operating Concept | R911305038 / 01
PROFIBUS-DP raw
The function block uses MW248 to MW254 as scratch flags.
For each operating device, the program block also requires any data
word of a data block. The data word is transferred as a parameter
during the call. The telegram sequential number is saved in this data
word.
The function block cyclically checks the content of byte 1 – bits 5 to 7.
If the value 0 is contained here, the telegram number memory is reset.
If in byte 1, bits 5 to 7 are not equal to the content of the telegram num-
ber memory, a new request telegram has been received from the ope-
rating device, and this must be evaluated and a response sent.
The function block is called cyclically in OB1 with the corresponding
parameters for each operating device.
Protocol Parameters for BM DP12
Set the following parameters for the protocol:
Set the parameters using the Bosch DP software. The supplied device
data base file RX01081A.GSD is directly imported by the DP software.
Therefore, the data required to set the parameters of the operating
devices are available in the DP software. You can specify 8, 12, or 16
bytes for the telegram length.
Parameter Value
Maximum Waiting Time for Response [ms] 1000
Delay Until Connection Set-Up [ms] 5000
Station Number 3
Telegram Length 16
Floating Point Number in the Siemens Format Inactive
Byte Order is High-Low Inactive
Address Width 2
Fig. 6-210: Protocol parameters for the Bosch CL series