Notifier NFS-640 Programming Manual

Equation Entry Appendix D: CBE (Control-By-Event)
NFS-640 Programming Manual P/N 51333:B 10/03/2003 97
Equation Syntax Example
OR(AND(L1D1,L1D4),AND(L2D6,L2M3,NOT(L2M4)),ANY2(L1M13,L1M14,L1M15))
Equation begins with a logic or time delay function - OR
67 Characters (maximum of 73) - includes parentheses and commas.
5 Logic Functions (maximum of 10) - OR, AND, AND, NOT and ANY2.
8 Arguments (maximum of 20 per logic function) - L1D1,L1D4,L2D6,L2M3,L2M4....
The equation contains no spaces.
Evaluating an Equation
When you evaluate an equation, you start from the innermost part of the equation and work outwards.
For this equation to evaluate TRUE and thus turn on any output mapped to it, the following conditions
must be met:
OR(AND(L1D1,L1D4),AND(L2D6,L2M3,NOT(L2M4)),ANY2(L1M13,L1M14,L1M15))
These have
to be ON
These have
to be ON.......and this OFF
Any TWO of these
have to be ON
for this part to be TRUE
for this part to be TRUE
for this part to be TRUE
When this is TRUE OR When this is TRUE OR When this is TRUE
Then all outputs programmed with this equation will be turned ON.
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Notifier NFS-640 Specifications

General

Brand	Notifier
Model	NFS-640
Category	Fire Alarms
Language	English