Mounting and connection
4.4 Communication with S7-200
OP 73micro, TP 177micro (WinCC flexible)
60 Operating Instructions, 09/2007, 6AV6691-1DF01-0AB0
4.4.1.3 Configuration instructions
Please observe the following configuration instructions:
Note
For a first-generation SIMATIC S7-200 (CPU 214, 215, 216), use the connection at Port 1 for
communication via MPI/PROFIBUS DP. When using a CPU 214, set a baud rate of
9.6 Kbps.
Note
A cable must be terminated with its characteristic wave impedance. To do this, enable the
terminating resistor on the first and last node of the PROFIBUS/MPI network.
Both nodes must be supplied with power. Of the first and last end nodes of a
PROFIBUS/MPI network, only one can be an HMI device! No other HMI devices should be
connected to the network as terminal nodes.
The RS485 PROFIBUS terminal and the PROFIBUS connector are equipped with a switch
for setting the terminating resistor. Meaning of the ON and OFF switch settings:
OFF: The terminating resistor is disabled, i.e. the bus segment is not terminated.
ON: The terminating resistor is enabled, i.e. the bus segment is terminated.
4.4.2 Configuring communication
Requirements
The following software components are required for communication:
● WinCC flexible configuration software
● STEP 7 MicroWIN configuration software for the SIMATIC S7-200 controller
Driver for the HMI device
The communication driver for S7-200 is supplied with WinCC flexible are installed
automatically.
No special blocks are required in the PLC.
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