Communication / PROFIBUS
09.2008
6SE7087-6QX70 (Version AK) Siemens AG
8.2-82
Compendium Motion Control
SIMOVERT MASTERDRIVES
You need:
♦
STEP7 from Version 5.0 with Servicepack 2 or Servicepack 4
(Servicepack 3 is not suitable) or Version 5.1
♦
DriveES with slaveOM for CBP2
♦
S7-Profibus-Master with the "equidistance" property
♦
DP slaves which are capable of cross traffic as communication
partners (e.g. drives or ET200)
♦
CBP2
Cross traffic is independent of the basic unit used. The functionality is
completely provided in the CBP2.
You can configure cross traffic with the slave OM in the mask,
"Configuration".
Receive/transmit data: maximum of 16 words of setpoints/actual values
per drive, can be divided up in any way on DP master and DP slaves
capable of cross traffic.
Number of transmission channels: a broadcast channel which the DP
master and any number of DP slaves can receive.
Number of receive channels: max. eight.
The following illustration contains a cross-traffic configuration with two
cross-traffic encoders (publishers) and a drive with CBP2 as the cross-
traffic receiver (subscriber).
Master - Slave 1
Inputs
Outputs
Slave 2
(Publisher)
Inputs
Slave 3
(Publisher)
Inputs
Actual
values
Setpoints
1
PROFIBUS
Slave 1 (Subscriber)
Drive with CBP2
Dual-Port-RAM
2
3
4
1
2
3
1
2
3
4
5
6
7
1
2
3
4
5
6
7
8
PZD1
PZD2
PZD3
PZD4
PZD1
PZD2
PZD3
PZD4
PZD5
PZD6
PZD7
PZD8
Fig. 8.2-25
Example of a cross-traffic configuration
Quantities
Example