CTI Products RCD Standard - Remote Comparator Display - Manual (Page 99)

MCN Remote Comparator Display Appendix A
CTI Products, Inc. Changing Status Message Text
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Creating 2 sub-categories
Table 9 shows how two sub-categories can be created by reserving the FAIL input
status signal (binary weight 40 hex) for the selector. Up to 8 status messages can
be defined for each sub-category, with the VOTE, RECEIVE and DISABLE input
status signals selecting between each status message.
Input
Value
Field
Sub-
category
#
Sub-Category
Selector I/O Bit
FAIL
Active Status Signals
00 0 0 -
01 0 0 VOTE
04 0 0 RECEIVE
05 0 0 RECEIVE + VOTE
10 0 0 DISABLE
11 0 0 DISABLE + VOTE
14 0 0 DISABLE + RECEIVE
15 0 0 DISABLE + RECEIVE + VOTE
40 1 1 -
41 1 1 VOTE
44 1 1 RECEIVE
45 1 1 RECEIVE + VOTE
50 1 1 DISABLE
51 1 1 DISABLE + VOTE
54 1 1 DISABLE + RECEIVE
55 1 1 DISABLE + RECEIVE + VOTE
Table 9 - 2 Sub-categories / 8 States Each
Note: In Table 9, any bit or input status signal shown as a 1 is an active input
signal and any bit shown as a 0 is an inactive input signal. For the MCN system,
all I/O signals are active low, so any active input status signal is low at the CIB or
IOB I/O connector and any inactive input status signal is high at the CIB or IOB
I/O connector.