09.2008
Communication / PROFIBUS
Siemens AG
6SE7087-6QX70 (Version AK)
SIMOVERT MASTERDRIVES
Compendium Motion Control
8.2-17
8.2.2.5
Acyclical master class 2 - Operator control (SIMATIC OP)
Functionality only with CBP2.
With a SIMATIC OP as the PROFIBUS DP master, you can achieve
direct access to a drive.
A drive with a CBP2 behaves like a SIMATIC S7 towards a SIMATIC OP.
For access to the drive parameters, the following simple illustration
applies:
Parameter number = Data block number
Parameter subindex = Data block offset
All SIMATIC OPs and TDs with the final digit 7 are suitable.
You can configure SIMATIC OP with "ProTool". The following specific
settings for drives are to be entered during configuration with Pro Tool.
Control units: Protocol always
"SIMATIC S7 - 300/400"
, additional
parameters:
Field Value
Network parameter - Profile
DP
Network parameter - Baud rate
(as selected)
Communications partner - Address
(the PROFIBUS address of the drive)
Communications partner - Slot/rack Don't care, 0
Variables: "General" register:
Field Value
Name (as
selected)
Control unit
(as selected)
Type
Depending on parameter value addresses,
e.g.:
INT:
for I2, O2
DINT:
for I4, O4
WORD:
for V2, L2
Range
DB
DB
(data block number)
Parameter number
1 to 3999
DBB, DBW, DBD
(data block offset)
Subindex
0:
for non-indexed parameters
1 to 101:
for indexed parameters
Length (not
activated)
Acquisition cycle
(as selected)
Number of elements
1
Places after the decimal point
(as selected)
ProTool
Open-loop control
Variable
