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Programming—IFC-1010/2020 Programming
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 (M5x0CJ) is activated by any one
of 14 software zones:
Z4
Z5
Z2
Z8
Z13
Z10
Z11
Z6
Z14
Z1
Z9
L1M1
M5x0CJ
14zone.cdr
Figure 79: Activating a Control Module
3. The following CBE equation for L1M1 takes up 16 bytes in memory:
OR(Z1 Z2 Z3 Z4 Z5 Z6 Z7 Z8 Z9 Z10 Z11 Z12 Z13 Z14)
Size in bytes 1 +1 + 1 + 1 +1+1+1+ 1 + 1+1 + 1 + 1 + 1 + 1 + 1= 16 Bytes
(too many bytes)
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.
