Manual
ibaBM-DP
110
Issue 1.7
11
PROFIBUS configuration
11.1 Sniffer operation
No GSD file and no special configuration (for example in the SIMATIC Manager) are
required for the device.
The telegrams on the PROFIBUS must be known, if you want to enter the data to be
measured in the configuration files of the device or in ibaPDA. The following signal infor-
mation must be known:
The slave on which it is to be acquired (bus no. and slave no.).
If it is a signal that is sent from the DP master to the slave (OUTPUT) or from the
slave to the master (INPUT).
Where the signal is located in the telegram or where the range of values for several
signals starts (byte offset) and what data type is involved. The byte offset is the off-
set within the payload data.
Tip
If you use Step 7 and S7-CPUs, you can generate a symbolic address book for the data
you want to measure. Please see chapter 10.6. As a prerequisite, the IO signals have to
be defined in the symbol table.
PROFIsafe
PROFIsafe is a certified profile for PROFIBUS and PROFINET which overlays the PRO-
FIBUS and PROFINET standard protocol to transmit safe input and output data. The
transmitted data does not only include the pure user data but also an area for the trans-
mission of the data securing information.
User data from PROFIsafe connections can be acquired using the same functions as from
PROFIBUS and PROFINET standard connections.
The definition of the transmitted data can be found in the respective device manual of the
IO-module. In most cases, the user data is located from Byte-Offset 0 on.
11.2 Operation as active slave
For operation as active slave, one or several slave addresses (max. total of 8) must be
assigned to the device. These slave addresses must be parametrized in the PROFIBUS
configuration (e. g. in the SIMATIC manager) as well as in the configuration of the device
(e. g. by using „Active slave“ modules in ibaPDA).
