Technical data

Table Of Contents
SFBs for Integrated Control
System Software for S7-300/400 System and Standard Functions - Volume 2/2
27-14
A5E00739858-01
Output Parameters
The following table contains the description of the output parameters for
SFB 42/FB 42 "CONT_S."
Parameter Data Type Values Default Description
QLMNUP BOOL FALSE ACTUATING SIGNAL UP
If the output "actuating signal up" is set, the
actuating valve is opened.
QLMNDN BOOL FALSE ACTUATING SIGNAL DOWN
If the output "actuating signal down" is set, the
actuating valve is opened.
PV REAL 0.0 PROCESS VARIABLE
The effective process variable is output at the
"process variable" output.
ER REAL 0.0 ERROR SIGNAL
The effective error is output at the "error signal"
output.