The Gateway is now on the Profibus DP network and selected. HWConfig shows the slots available under the Gateway to configure the data blocks to exchange.
Just drag and drop one of the data blocks available under the Gateway Profibus Card in the slot number 1. Simatic will automatically assign a start address (byte number) in the respective Input and output columns depending of the block type chosen. In this example, 64 words in and 64 words out.
Appendix B: Profibus™ DP Slave Communication
More blocks can be inserted in the following slots to fit your application. FIG. 58 shows an example with a 16 words input block in slot 2 and 5 words output block in slot 3. Addresses are given automatically but can be edited by the user.
NOTE: If the starting address for a block in slot 2 or above changes and creates a gap in the address range, it will not affect the Gateway blocks, as all data are con- secutive. It is however advised to keep the addresses consecutive to facilitate development.
FIG. 58: Configure Data Blocks
Save the configuration and download it to the PLC.
NOTE:
•The maximum number of input bytes allowed is 244.
•The maximum number of output bytes allowed is 244.
•The maximum number of bytes overall is 436.
312785C | 65 |
