Network Communications UM353-1
6-10 March 2003
6.2.5 Discrete Indicator Loop Data
Discrete Indicator loop data occupies four LIL channels. The starting channel is entered during configuration of the
ODD operator display function block for each loop, as LIL CHAN (n). The first channel for each loop can be
viewed in station data starting at channel 6/parameter 38. The station configuration entry (both local and graphical
PC-based) will indicate the next available open space of six contiguous channels. Another starting channel can be
entered but it is important to utilize the lowest total number of channels.
Channel locations n through n+3, in the table below, identify variables that will be available on the LIL for each
analog indicator loop. All parameter 1 data (e.g. discrete input states) is global and is transmitted every 0.5 second.
All other data is sent out on command.
C\P 1 2 3 4 5 6 7 8 9 10 11 12
n
L#DISW L#I0TAG L#I3TAG L#I6TAG L#I9TAG
n+1
L#DSSW L#I1TAG L#I4TAG L#I7TAG L#IATAG
n+2
L#DOSW L#I2TAG L#I5TAG L#I8TAG L#IBTAG
n+3
L#SW L#TAG
C\P 13 14 15 16 17 18 19 20 21 22 23 24
n
L#ICTAG
n+1
L#IDTAG
n+2
L#IETAG
n+3
L#IFTAG
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