Error Handling; Start-Up Characteristics; Time Characteristics - Siemens Cemat Minerals V9.1 Mode D'emploi

Error handling

The error display is located in the CFC plan at the ENO Boolean module exit. The value
corresponds to the BIE (binary result in STEP 7-STL on completion of the module) or the OK bit
(in SCL notation) and means:
ENO=BIE=OK=1 (TRUE) -> the module result is correct.
ENO=BIE=OK=0 (FALSE) -> the result or the general conditions for this calculation (e.g. entry
values, operating mode, etc.) are invalid.

Start-up characteristics

A differentiation is made between:
First run
The module is called initially from the OB in which it has been inserted. This is usually the OB in
which the normal, process-related processing takes place (e.g. OB1). The module is preset with
the status corresponding to the input parameters. These can be default values (also refer to I/O
bar) or previously configured values, which, for example, you have parameterized in the CFC.
No special start-up behavior is described unless the module deviates from this rule.
Start-up
The module is processed once during a CPU start-up. To ensure this, the module has to be
called from a start-up OB (where it is included automatically by the ES). The start-up behavior is
described in this case.
The CEMAT object modules don't have start-up characteristics. The blocks are called
exclusively in the cyclical program.

Time characteristics

A module with time characteristics must be installed in an cyclic interrupt OB. It calculates its
time constants/parameters using its sampling time (the time interval between two successive,
cyclical processing steps). The sampling is determined by the step downs for the so-called run-
time group. This ensures that the module is not processed for every OB passage. This sampling
time is entered in the I/O bar, in the SAMPLE_T parameter.
The time behavior is mentioned only when the module exhibits such behavior.
The CEMAT object modules don't have time characteristics. However for some of the objects
the run sequence is important. This is described under time characteristics.
CEMAT MinAS, General (V9.1), PS001
Function Manual, 11/2020, A5E50300996-AA
Reference Manual Objects General
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