Configuration (Step 7 Professional); Programming - Siemens S7-300 Configuration Manual

Intelligent PROFINET IO device with S7-300 CP

7.3 Configuration (STEP 7 Professional)

More extensive parameter assignment for the module is not necessary.
Note
By selecting suitable network components and setting the network properties, make sure
that the PROFINET line can be operated at 100 Mbps full duplex without any gaps in
PROFINET IO mode.
7.3 Configuration (STEP 7 Professional)
Configuration with STEP 7 Professional
The configuration of the CP as an intelligent PROFINET IO device (I-Device) involves the
following procedures in STEP 7 Professional:
● Inserting the CP in the S7 station and enabling it as a PROFINET IO device
The CP is inserted in a SIMATIC S7-300 station and enabled for PROFINET IO device
mode in the "Properties" parameter group.
● Assign parameters to the PROFINET IO device for data exchange with the IO controller.
This includes configuration of the transfer areas. Transfer areas are the IO areas via
which the I-device exchanges data with the higher-level IO controller.
Further information
The procedure is described in detail in the information system of STEP 7 Professional.
7.4

Programming

With the programming, you specify the sequence of the user program for the CPU and
therefore access to the IO data.
To write and read process data use program blocks PNIO_SEND (FC11) or PNIO_RECV
(FC12) in the user program.
How you use existing functions in your user program for I-device mode is described in the
following sections of this chapter.
128
Configuring and commissioning S7 CPs for Industrial Ethernet
Configuration Manual, 09/2013, C79000-G8976-C182-13