I/O FUNCTIONS AND ASSIGNMENTS
9-15
SIG-00-22-02 JUNE 2022 (Revised September 2022)
Version : B.1
Table 9-4 System Input Functions
Name Input
Condition for Input to be Available
Found on Menu
Description
Adv Preempt IP
Preempt Logic =
Advance
and
Adv Preempt IP Used =
Yes
Basic Configuration/
Adv Preemption
Used to start advance preemption
from an external source.
Preempt Health
Preempt Logic =
Advance
and
Preempt Health IP Used =
Yes
Basic Configuration/
Adv Preemption
Used check the advance
preemption relay is energized when
it is meant to be.
Traffic Sys Health
Preempt Logic =
Advance
and
Traffic System Health IP Used =
Yes
Basic Configuration/
Adv Preemption
Used monitor health of traffic
system. GCE switches from
Advance preemption to
Simultaneous preemption with
traffic system health input de-
energized.
Second Train OP
Second Train OP Used =
Yes
Basic Configuration/
Adv Preemption
This is not an external input. It
appears in the list of system inputs
so it can be set to be an equation.
This can then be mapped as a
System Output to a vital output.
AND 1 XR Enable
AND 1 XR Used =
Yes
and
AND 1 XR Enable Used =
Yes
Logic Programming/
Logic: PSO ANDing
Used to de-energize AND 1 XR via
an input or internal logic
AND ‘n’ Enable (n= 2..8)
AND ‘n’ XR Enable Used =
Yes
Logic Programming/
Logic: AND Gates/
Logic: AND 2 .. Logic: AND 8
Used to de-energize AND ‘n’ via an
input or internal logic
AND 1 XR Wrap
AND 1 XR Used =
Yes
and
AND 1 XR Wrap Used =
Yes
Logic Programming/
Logic: PSO ANDing
Used to wrap AND 1 XR via an
input or internal logic.
AND ‘n’ Wrap (n= 2..8)
AND ‘n’ Wrap Used =
Yes
Logic Programming/
Logic: AND Gates/
Logic: AND 2 .. Logic: AND 8
Used to wrap AND ‘n’ via an input
or internal logic.