Siemens Simovert Masterdrives Compendium page 341

09.2008
Realization of the
extended DP
functions
Siemens AG 6SE7087-6QX70 (Version AK)
SIMOVERT MASTERDRIVES
The different masters or the different methods of data transfer are
represented in the CBP by corresponding channels (see Fig. 8.2-4):
♦ Cyclical data transfer with a Class 1 master (MSCY_C1)
Use of DATA-EXCHANGE and the PPO types in accordance with the
PROFIdrive profile
♦ Acyclical data transfer with the same Class 1 master (MSAC_C1)
Use of the PROFIBUS functions, DDLM_READ and DDLM_WRITE
The contents of the transferred data block corresponds to the
structure of the parameter area (PKW) in accordance with the USS
specification (with data block 100)
or (for CBP2 V2.21 and later only)
the structure of the acyclic parameter channel according to
PROFIdrive profile, version 3 (with data block 47).
♦ Acyclical data transfer with start-up tool DriveES (Class 2
master; MSAC_C2)
DriveMonitor of DriveES-Basic can access parameters and process
data in the basic units acyclically.
♦ CBP2: acyclical data traffic with SIMATIC OP (second Class 2
master; MSAC_C2) only
SIMATIC OP can access parameters in the basic units acyclically.
♦ CBP2 V2.21 and later only: Instead of DriveES or SIMATIC OP an
external master (Class 2 Master) compliant with acyclic parameter
channel according to PROFIdrive profile version 3 with data block 47
can also access converter data.
Compendium Motion Control
Communication / PROFIBUS
8.2-11