Initialization - Siemens SIMATIC Manual

Continuous Temperature Controller FB 58 "TCONT_CP"
Numeric Examples
Required
Accuracy G
1 %
1 %
2.4.4

Initialization

FB "TCONT_CP" has an initialization routine that is processed when the input
parameter COM_RST = TRUE is set. After processing the initialization routine, the
block sets COM_RST back to FALSE.
During the initialization, the integral action is set to the value I_ITLVAL. When
called in a cyclic interrupt level, it continues to operate starting at this value.
All other outputs are set to their initial values.
If you require initialization when the CPU restarts, call the block in OB100 with
COM_RST = TRUE.
2-18
TI CYCLE = PER_TM =
TI/10 TI/5
100 s 10 s 20 s
5 s 0.5 s 1 s
CYCLE_P = Comment
PER_TM*G
0.2 s Call with SELECT = 0
at a cycle time of 200
ms
0.01 s Separate call of the
pulse section in a
separate cyclic interrupt
level.
PID Temperature Control
A5E00125039-02