Siemens SIMATIC S7-1200 - Page 650

Technology instructions
10.2 PID control
S7-1200 Programmable controller
650 System Manual, V4.2, 09/2016, A5E02486680-AK
Setting
TO-DB parameter
Data
type
Value range
Description
Controller
structure
(cooling)
"PIDSelfTune.SUT.
TuneRuleCool",
"PIDSelfTune.TIR.
TuneRuleCool"
Int "PIDSelf-
Tune.SUT.
TuneRuleHeat"
= 0..2,
"PIDSelf-
Tune.TIR.
TuneRuleHeat"
= 0..5
You can select the
tuning algorithm for
cooling.
Possible selections:
• PID (Temperature)
(=default)
("PIDSelfTune.SUT.
TuneRuleCool" = 2)
("PIDSelfTune.TIR.
TuneRuleCool = 0)
• PID
("PIDSelfTune.SUT.
TuneRuleCool" = 0)
("PIDSelfTune.TIR.
TuneRuleCool" = 0)
• PI
("PIDSelfTune.SUT.
TuneRuleCool" = 1)
("PIDSelfTune.TIR.
TuneRuleCool" = 4)
Any other combination
shows “User defined”,
but “User defined” is
not provided by default.
“PID (Temperature)” is
new for PID_Temp,
with a specific pretun-
ing (SUT) method for
temperature processes.
Only available if you
check/select the follow-
ing items: “Activate
output (cooling)” in
“Basic settings” view
("Con-
fig.ActivateCooling" =
TRUE), and “PID pa-
rameter switchover” in
“Output settings” view
(Con-
fig.AdvancedCooling =
TRUE).