Bistable function blocks, Boolean function blocks – Rockwell Automation 1503VC IntelliVAC Plus Contactor Control Module User Manual
Page 137
9-14
DeviceLogix
1503-UM054C-EN-P – June 2013
Boolean Function Blocks
The following truth table describe the boolean function blocks by
listing all possible combinations of inputs and indicating the outputs
for each combination.
Table 9.B - Truth Table for Boolean Function Blocks
Function
Input 1
Input 2
Output
AND
0
0
0
0
1
0
1
0
0
1
1
1
NAND
0
0
1
0
1
1
1
0
1
1
1
0
OR
0
0
0
0
1
1
1
0
1
1
1
1
NOR
0
0
1
0
1
0
1
0
0
1
1
0
XOR
0
0
0
0
1
1
1
0
1
1
1
0
XNOR
0
0
1
0
1
0
1
0
0
1
1
1
NOT
1
N/A
0
0
N/A
1
Bistable Function Blocks
The Bistable function blocks implement standard latches. These
include the SR latch (set dominant) and the RS latch (reset
dominant). Each latch block has two inputs called input and reset
and an output called output. Following is the truth table for the
bistable function blocks.