Notifier AM2020 User Manual page 208

Due to the 14-byte size limitation, it may be necessary to use more than one equation or list to accomplish a
desired result. Through the use of reverse activating zones, an equation which normally would contain too
many bytes can be broken up into several smaller equations.
In the example below, a control module (CMX) is to be activated by any one of 14 software zones:
Z4
Z3
Z2
By using two reverse-activating zones, the equation with 16 bytes is broken into two smaller equations and
the CBE for the control module uses the two reverse-activating zones as its operands.
Z5
Z4
Z3
Z2
Z1
3-66
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Z6
Z5
Z1
CBE Equation for L1M1:
OR( Z1 Z2 Z3 Z4 Z5 Z6 Z7 Z8 Z9 Z10 Z11 Z12 Z13 Z14 )
1 + 1 +1 +1 +1 +1 +1 + 1+1 + 1 + 1 + 1 + 1 + 1 + 1 + 1 = 16 Bytes
Z6 Z7 Z8
Z239 Z240
RZON RZON
L1M1
CMX
Z7 Z8 Z9
L1M1
CMX
Z9
Z10
Z11
Z12
Z13
Z14
Z10
Z11
Z12
Z13
Z14
(too many)
CBE Equation for Z239:
OR(Z1 Z2 Z3 Z4 Z5 Z6 Z7 Z8)
= 10 Bytes
CBE Equation for Z240:
OR(Z9 Z10 Z11 Z12 Z13 Z14)
= 8 Bytes
CBE Equation for L1M1:
OR(Z239 Z240) = 4 Bytes
Programming 15088:J 10/22/99