Manual
ibaBM-DP
146
Issue 1.7
Fig 117: PLC S7 hardware configuration, PROFIBUS slave I/O address space
In this example the addresses PIW 256 and PQW 256 are displayed in HW Config. For
S7-300, 3 ranges (2 with 32 bytes and 1 with 8 bytes) are automatically created per
slave. The maximum size of transfer data with SFC14 and SFC15 to any DP device is
limited to 32 bytes (only for S7-300). That means, if you want to transfer the complete
block of 72 bytes, you have to call up the DP-SFCs three times in your S7 program.
5.
Now, download all modified and new blocks (incl. the DBs!) to PLC.
Step 5: ibaLogic test program
1.
Start ibaLogic and create a new test-layout. Activate the ibaFOB-i/o or ibaFOB-4i/4o
card in the system settings.
2.
Received data from S7
To display the received data (temperature value) from S7-PLC, you have to position
the input resource from the 1
st
analog INT-value
Fig 118: ibaLogic, input signal from S7
3.
Transmit data to S7
To create a signal in ibaLogic, you can use the generator (input resource).
To transmit data from ibaLogic to the S7-PLC you have to position the output resource
from the 1st analog INT-value! Don’t forget to connect generator with the output re-
source. (The converter is inserted automatically.)
