Siemens SIMATIC Manual page 85

Addr Parameter
90.1 I_ITL_ON
90.2 PULSE_ON INPUT
90.3 TUN_KEEP INPUT
92.0 ER
96.0 LMN_P
100.0 LMN_I
104.0 LMN_D
108.0 PHASE
110.0 STATUS_H
112.0 STATUS_D
114.0 QTUN_
RUN
PID Temperature Control
A5E00125039-02
Decl. Data Range of
Type Values
INPUT BOOL
BOOL
BOOL
OUTPUT REAL Dependent
on the
sensors
used
OUTPUT REAL
OUTPUT REAL
OUTPUT REAL
OUTPUT INT 0, 1, 2, 3,
4, 5, 7
OUTPUT INT
OUTPUT INT
OUTPUT BOOL
Initial Description
Value
FALSE INITIALIZATION OF THE
INTEGRAL ACTION ON
FALSE PULSE GENERATOR ON
If PULSE_ON = TRUE is set, the
pulse generator is activated
KEEP TUNING ON
FALSE
The mode changes to automatic
only when TUN_KEEP changes to
FALSE.
ERROR SIGNAL
0.0
The effective error is output at the
"error signal" output.
0.0 PROPORTIONALITY
COMPONENT
The "proportionality component"
contains the proportional action of
the manipulated variable.
0.0 INTEGRAL COMPONENT
The "integral component" contains
the integral action of the
manipulated variable.
0.0 DERIVATIVE COMPONENT
The "derivative component"
contains the derivative action of the
manipulated variable.
PHASE OF SELF TUNING
0
The current phase of the controller
tuning is indicated at the PHASE
output (0..7).
STATUS HEATING OF SELF
0
TUNING
STATUS_H indicates the diagnostic
value of the search for the point of
inflection when heating.
STATUS CONTROLLER DESIGN
0
OF SELF TUNING
STATUS_D indicated the
diagnostic value of the controller
design when heating.
0 TUNING IS ACTIVE (PHASE 2)
The tuning manipulated variable
has been applied, tuning has
started and is still in phase 2
(locating the point of inflection).
Appendix
A-7