Function Blocks
FSS Four Selector Switch Function Block
164 HC900 Hybrid Control Designer Function Block Reference Guide Revision 11
2/07
FSS Four Selector Switch Function Block
Description
The FSS label stands for Four-Selector Switch.
This block is part of the
Logic category.
Function
Provides 16 digital outputs in groups of four. A dedicated display allows activating of only one output per
group while other outputs in the associated group are turned off.
Inputs
RESET
= Off to ON requests a reset state. Reset Input turns on #1 output of all 4 groups.
Outputs
A1, A2, A3, A4
= Bank A Output 1 through Output 4
B1, B2, B3, B4 = Bank B Output 1 through Output 4
C1, C2, C3, C4 = Bank C Output 1 through Output 4
D1, D2, D3, D4 = Bank D Output 1 through Output 4
ATTENTION
Only one output ON per group, A, B, C, D.
If the Operator Interface makes a request and RESET occurs on the same cycle, RESET will
take precedence.