Specifications

Setting Up Communications Hardware and Network Communications
7-13
S7-200 Programmable Controller System Manual
C79000-G7076-C233-01
Note
If you are using the PPI parameter set, STEP 7-Micro/WIN 32 does not support
two different applications running on the same MPI or CP card at the same time.
Close the other application before connecting STEP 7-Micro/WIN 32 to the
network through the MPI or CP card.
In this configuration, the communication possibilities are listed below:
 STEP 7-Micro/WIN 32 (on station 0) can be monitoring the status on
programming station 2, while the TD 200 units (stations 5 and 1) communicate
with the CPU 224 modules (stations 3 and 4, respectively).
 Both CPU 224 modules can be enabled to send messages by using network
instructions (NETR and NETW).
 Station 3 can read data from and write data to station 2 (CPU 222) and
station 4 (CPU 224).
 Station 4 can read data from and write data to station 2 (CPU 222) and
station 3 (CPU 224).
It is possible to connect many master and slave stations to the same network.
However, the performance of the network can be adversely affected as more
stations are added.
MPI cable
(RS-485)
Apply termination and bias at stations 2 and 4. These stations are at the extreme ends of the network.
The connectors used at stations 2, 3 and 4 have a programming port connector.
Station 0 CPU 222
Station 2
CPU 224
Station 3
CPU 224
Station 4
TD 200
Station 1
TD 200
Station 5
Figure 7-9 Using an MPI or CP Card to Communicate with S7-200 CPUs