Input Paramters Tcont_S - Siemens SIMATIC S7-1200 Function Manual

9.4.5.4

Input paramters TCONT_S

Table 9- 23
Parameters
CYCLE
SP_INT
PV_IN
PV_PER
DISV
LMNR_HS
LMNR_LS
LMNS_ON
LMNUP
LMNDN
See also
Block diagram TCONT_S (Page 501)
PID control
Function Manual, 03/2017, A5E35300227-AC
Input paramters TCONT_S
Ad- Data Default
dress type
0.0 REAL 0.1 s
4.0 REAL 0.0
8.0 REAL 0.0
12.0 INT 0
14.0 REAL 0.0
18.0 BOOL FALSE
18.1 BOOL FALSE
18.2 BOOL TRUE
18.3 BOOL FALSE
18.4 BOOL FALSE
Description
At this input, you enter the sampling time for the controller.
CYCLE ≥ 0.001
The input "Internal setpoint" is used to specify a setpoint.
The valid values depend on the sensors used.
At the "Process variable input" you can assign parameters
to a commissioning value or you can interconnect an ex-
ternal process value in floating-point format.
The valid values depend on the sensors used.
The process value in I/O format is interconnected with the
controller at the "Process value I/O" input.
For feedforward control, the disturbance variable is inter-
connected to the "Disturbance variable" input.
The signal "Control valve at high endstop" is interconnect-
ed on the input "High endstop signal of position feedback".
LMNR_HS=TRUE: The c ontrol valve is at high end-
•
stop.
The signal "Control valve at low endstop" is interconnect-
ed on the input "Low endstop signal of position feedback".
LMNR_LS=TRUE:
•
The c ontrol valve is at low endstop.
Manipulated value signal processing is switched to manual
mode at the "Enable manual mode of manipulated signal".
In manual mode of manipulated signals, the output pa-
rameter QLMNUP is operated at the input parameter "Ma-
nipulated signal up".
In manual mode of the manipulated signals, the output
parameter QLMNDN is operated at the input parameter
"Manipulated signal down".
Instructions
9.4 PID basic functions
503