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03/20/2020 TR - EMO - TI - DGB - 0067 - 02 Page 23 of 23
3.4.2 "Write" parameter
In the following example, the parameter P200 (target position) must be written to the
drive with the value 1000. The following steps are necessary:
1. First FB invocation: Preconfigure all FB inputs Write, Read, Save and
Factory_default with FALSE
2. Next FB invocation: Query FB output Done to FALSE, then at FB input write
Number=200, Index=0 and value=1000 and execute instruction via FB
input Write to value TRUE.
3. While instruction processing is running, call module cyclically and query FB
output Done until value is TRUE. The instruction is then complete. To ensure
that the value has been correctly written to the drive, it must be checked that
the FB output Error is at the value FALSE. Thereupon it is ensured that the
writing process was successfully completed.
3.4.3 "Save" parameter
In the following example, the parameter values currently active in the drive are to be
remanently stored.
1. First FB invocation: Preconfigure all FB inputs Write, Read, Save and
Factory_default with FALSE
2. Next FB invocation: Query FB output Done to FALSE, then at FB input
execute instruction via FB input Save to value TRUE.
3. While instruction processing is running, call module cyclically and query FB
output Done until value is TRUE. The instruction is then complete. To ensure
that the instruction has been correctly executed, it must also be checked that
the FB output Error has the value FALSE.
3.4.4 Load factory setting
In the following example the factory default parameter values are to be loaded in the
drive.
1. First FB invocation: Preconfigure all FB inputs Write, Read, Save and
Factory_default with FALSE
2. Next FB invocation: Query FB output Done at FALSE, then at FB input
execute instruction via FB input Write at value TRUE.
3. While instruction processing is running, call module cyclically and query FB
output Done until value is TRUE. The instruction is then complete. To ensure
that the instruction has been correctly executed, it must also be checked that
the FB output Error has the value FALSE.
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