01/2007
8.10 DP slave: SIMODRIVE drives
8-235
© Siemens AG 2007 All Rights Reserved
SINUMERIK 840Di sl Manual (HBIsl) – 01/2007 Edition
Notice
The I/O address set by the SlaveOM for an axis must match the I/O address
set in the NC.
There is no automatic adjustment!
The following data must agree:
1. SIMATIC configuration of DP slave 611U
I/O address
2. SINUMERIK 840Di sl NC
MD13050 DRIVE_LOGIC_ADDRESS[n], (logical drive address)
Note
To avoid any subsequent modifications to the I/O addresses in NCK machine
data:
S MD 13050 DRIVE_LOGIC_ADDRESS[n]
it is recommended to use the default values of the machine data when
configuring the I/O addresses within the configuration:
1st axis: Default I/O address = 4100
mth axis: Default I/O address = 4100 + (m–1)*40
The default setting for the machine data is described in Section 11.5.1, Page
11-310.
Dialog box: DP slave properties
Tab card: Configuration
Entry in table: PROFIBUS Partner, I/O address: <I/O address>
OK
After you have confirmed this dialog box using the button: ”OK”, the dialog box:
”DP slave properties” closes. Step 1 of parameterization of DP slave 611U is
then complete.
The default setting with regard to the consistency of the I/O data is whole
length.
This setting results in:
S Direct accesses from the PLC user program (e.g. byte, word or double word)
to this address range are not permitted by the PLC operating system.
S Accesses to this address range must be carried out using the system func-
tions SFC 14 and SFC 15.
S The system functions SFC 14 and SFC 15 ensure consistent reading/writing
of the data of an axis, e.g.:
– Message frame type 102: 6 words for the set value or 10 words for the
actual value
Dialog box
Consistency
8 PROFIBUS DP Communication
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