SSD Drives 590+ Series, Product Manual, Page: 152 / 319

Programming Your Application
6-45
590+ Series DC Digital Converter
INTERNAL LINKS
LINKS 11 & 12
Special links 11 and 12 allow further functionality within the block diagram by using three
additional parameters: ADVANCED, AUX SOURCE and MODE. They can perform seven
functions, depending upon the values of the MODE and ADVANCED parameters.
MODE Description
SWITCH - switches the signal source
between auxilliary and source analog or
logic tags If ADVANCED = OFF DESTINATION = SOURCE
If ADVANCED = ON DESTINATION = AUX SOURCE
INVERTER - inverts the source logic signal If ADVANCED = OFF DESTINATION = SOURCE
If ADVANCED = ON DESTINATION = Logic Inversion of SOURCE
AND - gives AND-ed result of source logic
signal and an auxilliary source logic signal If ADVANCED = OFF DESTINATION = SOURCE
If ADVANCED = ON DESTINATION = SOURCE AND AUX SOURCE
OR - gives OR-ed result of source logic
signal and an auxilliary source logic signal If ADVANCED = OFF DESTINATION = SOURCE
If ADVANCED = ON DESTINATION = SOURCE OR AUX SOURCE
SIGN CHANGER - reverses the sign of the
source logic signal If ADVANCED = OFF DESTINATION = SOURCE
If ADVANCED = ON DESTINATION = Value sign change of SOURCE
MODULUS - produces the modulus of the
source logic signal If ADVANCED = OFF DESTINATION = SOURCE
If ADVANCED = ON DESTINATION = Modulus of SOURCE
COMPARATOR - changes destination logic
signal to TRUE when source analog signal is
greater than auxilliary analog signal If ADVANCED = OFF DESTINATION = SOURCE
If ADVANCED = ON If SOURCE < AUX SOURCE DESTINATION = 0
If SOURCE > AUX SOURCE DESTINATION = 1
Parameter Tag Range
OUTPUT DEST 391, 396 0 to 639
(DESTINATION TAG)
Enter the tag number for the destination output value. Refer to “Special Links”, page 6-1.
INPUT SOURCE 390, 395 0 to 639
(SOURCE TAG)
Enter the tag number of the source input value. Refer to “Special Links”, page 6-1.
AUX INPUT SOURCE 394, 399 0 to 639
(AUX.SOURCE)
Enter the tag number of a source input value to provide a second input for the two-input
functions of the MODE selection. Refer to “Special Links”, page 6-1.
ADVANCED 392, 397 OFF / ON
When OFF the link operates as a standard link (links 1 to 10), i.e. it copies INPUT to
OUTPUT. When ON the link's functionality changes depending on the MODE parameter
setting.
MODE 393, 398 See below
This determines which operation is performed on the INPUT (and sometimes also the AUX
INPUT) before copying the result into the OUTPUT. It can be combined with
ADVANCED to dynamically
switch the OUTPUT between two inputs (INPUT and AUX
INPUT). The functionality of the various MODE selections are shown in the table.
0 : SWITCH
1 : INVERTER
2 : AND (logic)
3 : OR
(boolean)
4 : SIGN CHANGER
5 : MODULUS
6 : COMPARATOR