Input Format
(Original Document)
About us
Description
The "input format" function is used solely with standard process values. It provides the gross value of the loop's analog input. In order to do this, you must configure the format in compliance with the type of analog input channel.
Two range formats are available:
Process Value Input Address
You must define the process value input address on the Control Expert process control configuration screen. In the case of a standard process value, the address is either an %IW input word or an internal %MW word.
The input address is entered in the graphic section of the screen:
Function Parameters
Input Parameter:
Parameter
Symbol
Type
Thresholds
Default Value
R/W
Process Value Input
/
%IW
%MW
-32768 / 32767
/
R
Internal Parameter:
Parameter
Symbol
Type
Thresholds
Default Value
R/W
Range
PV_UNI_BIP
%KW bit
/
0 (Unipolar)
R
Output Parameter:
Parameter
Symbol
Type
Thresholds
Default Value
R/W
Input enabled
PV_SIM
INT
-32768 / 32767
0
R/W
Operation Monitoring
Should you omit to enter the input address, the software automatically reads in the simulation value. This value is initially set at 0.
When Using an External Process Value
In the case of an external process value, the "input format" function is not required, since the value is already an integer. This input is then transferred into the process value floating variable (PV) upon entering the loop controller.