Siemens SIMATIC Manual page 99

Abbr./Acronym Explanation
QLMNDN Actuating signal down
QLMNUP Actuating signal up
QPULSE Pulse output
Tuning active (phase 2)
QTUN_RUN
SAVE_PAR Save current controller parameters
Selection of the call for PID and pulse generator
SELECT
SP_INT Internal setpoint
Status controller design of the controller tuning
STATUS_D
STATUS_H Status heating of the controller tuning
T_P_INF Time to point of inflection [s]
Time response of the process (recovery time) [s]
TA
TD Derivative time constant [s]
Integral time constant or reset time [s]
TI
TM_LAG_P Time constant of a PTN model [s]
Time lag of the process (delay time) [s]
TU
TUN_DLMN Delta manipulated variable for process excitation
TUN_KEEP Keep tuning mode
Activate controller tuning
TUN_ON
TUN_ST Start controller tuning
Undo controller parameter change
UNDO_PAR
PID Temperature Control
A5E00125039-02
Abbreviations and Acronyms
B-3