Siemens S7-300 - Page 133

Intelligent PROFINET IO device with S7-300 CP
7.6 Example of configuration and programming
Configuring and commissioning S7 CPs for Industrial Ethernet
Configuration Manual, 09/2013, C79000-G8976-C182-13
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Transferring the process inputs (DB10) to the I addresses using PNIO_SEND
For the configured I addresses, you need to make data areas (for example in a DB) available
on the PROFINET IO devices, in this example in a DB10 that has not only data areas for the
process data but also for the status information IOCS.
Figure 7-4 Data structure for PNIO_SEND on the PROFINET IO device
The PNIO_SEND call interface in the user program
AWL Explanation
call fc 11 //PNIO_SEND block call
//(transfer inputs to the IO controller)
CPLADDR:= W#16#0100 //Module address from hardware configuration
CPLADDR:= W#16#0100 //IO controller mode (0) or IO device mode (1)
LEN := 20 //No. of log. I addresses to transf. in bytes
IOCS := P#DB10.DBX20.0 BYTE 3 //One status bit in DB10 per send data byte
DONE := M 70.0 //Address for return parameter DONE
ERROR := M 70.1 //Address for return parameter ERROR
STATUS := MW 72 //Address for return parameter STATUS
CHECK_IOCS := M 70.2 //Address for return parameter CHECK_IOCS
SEND := P#DB10.DBX0.0 BYTE 20 //Data area from DB10 to be transferred
//(20 bytes)