CTI Products RCD Standard - Remote Comparator Display User Manual
Page 99
MCN Remote Comparator Display
Appendix A
CTI Products, Inc.
Changing Status Message Text
68-10856-210
93
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.