ScreenMaster RVG200
Paperless recorder
7 Configuration
OI/RVG200-EN
129
7.12 Logic editor
Note.
The logic equation editor tabs are displayed only if the Math / Logic option is enabled.
LE1 (to 24)
Select the logic equation to create or modify.
Operand / Operator 1
Operand (1 to 6)
Specify the first operand – can be any digital signal.
Invert condition
Invert the signal, if required.
Operator (1 to 6)
Select an operator for the next input – see Table 7.4.
Inputs
A
0
0
1
1
B
0
1
0
0
Operators
Outputs
All inputs high
AND
0
0
1
1
Any (or All) input(s) low
NAND
1
1
1
0
Any (or All) input(s) high
OR
0
1
1
1
No inputs high
NOR
1
0
0
0
Any, but not All, input(s) high
XOR
0
1
1
0
Table 7.4 Logic operators
Repeat these steps until the equation is complete.
Eqtn tag & log enable
Equation tag
Enter an equation tag (20 characters maximum) to be displayed in the
Alarm Event log.
Refer to Appendix F, page 180 for further information regarding character
use in tags.
Log enable
Set to
On
to enable changes in the equation's state to be recorded in the
Alarm Event log.
