Technical data

Setting Up and Operating the Computing Unit
3-21
SIMATIC Panel PC 670 Computing Unit Equipment Manual
Edition 12/01
3.8 Using the Computing Unit in a SIMATIC S7 Network (MPI/DP)
Connecting to an S7 programmable controller via the MPI/DP interface
You can connect the computing unit to a SIMATIC S7 programmable controller
or to a PROFIBUS network using an isolated*) MPI/DP interface. The MPI
connecting cable (5m) for the connection to SIMATIC S7 CPUs (Order No.
6ES7901-0BF00-0AA0) is supplied with the computing unit. Only transfer rates
up to 187.5 kbps are possible with this connecting cable. For baud rates from
1.5 Mbps, you require the 12 Mbps PROFIBUS connecting cable
(Order No. 6ES7901-4BD00-0XA0).
MPI/DP Interface)
6ES7901-0BF00-0AA0
(5 m long)
In interference environment:
Bus connector
6ES7972-0BB11-0XA0 or
6ES7972-0BB40-0XA0
Figure 3-15 Connection Using the MPI/DP Interface
To connect the computing unit to a SIMATIC S7 programmable controller, perform
the following steps:
1. Turn your device off.
2. Plug the connecting cable onto the MPI/DP interface
Caution
Danger of damage being caused to the device
Before inserting the connecting cables, the static charge your body, the device and
the connecting cables must be brought to the same level. You can do this by
briefly touching the metal housing.
* Optically isolated within the SELV circuit