Do you have a Profibus example that performs both reads and writes?

For the HI 2151/20WC, HI 2151/30WC, and the HI 2110WI units, the attached ladder logic example should read full status and weight data, perform a tare command and read full weight data again.

The reads for these units will entail entering the command to do a block read in the first word and the block number you want to read in the second word of the output data table in the PLC. The read data should show up in the input data table in the PLC.

If you want to do a write, you would write the block of data into the output data table of the PLC starting at word 0. Insure you fill in all the data words of the block write, not just a part of it. If any data within the block of information is incorrect, then the entire block will be ignored.