
Function Code 12 – High / Low Compare
GENERAL DESCRIPTION
This function has two outputs. When the input is equal to or exceeds the high limit,
output N equals logic 1. When the input is equal to or less than the low limit, output N+1
equals logic 1. If the value of the input is between the assigned limits, both outputs are
logic 0.
UTILIZATION
The MOD 30ML/MODCELL compound FC12 presents High/Low compare.
Figure 12 .1.
Function Code 12
EXPLANATION
The compound uses 2 EX blocks. The HIGHLIM block compares the input for high limit
and the LOWLIM block compares the input for Low limit.
12 - 1
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