
ICC
91
8.3.6 SLC-5/05
Example: Reading and Writing
Often times, applications may need to both read data from and write data to the inverter. At a minimum,
this will require two MSG instructions and two message control files. Figure 128 shows an example of
two MSG instructions, one for reading and one for writing. Note that the “Read/Write” field of each of the
MSG instructions is set according to their function.
Figure 128: Reading and Writing via MSG Instructions
Figure 129 shows the configuration details of the “write” MSG instruction. Note that this instruction will
only be writing to one inverter register: namely, register 1798 (function code S05 / frequency command).
The source Data Table Address in this case is N18:30.
Figure 129: MSG Configuration for Writing