Notifier UniNet 2000, Инструкция по установке, эксплуатации и администрированию

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148 The Workstation Installation/Operation Manual Version 2 Document 51540 Rev. B1 4/8/02
Disarm - When a point is in Disarmed mode it does not monitor alarms for the input point. It will report trouble
conditions, but will not report input active or input normal conditions. The following rules apply:
1. If a point is in an off-normal condition (input active) and a Disarm command is received the resulting
action is based on the origin of the command.
A. If the command originated from a Manual operation the point will be Disarmed. A return to normal
event will be sent before the point is Disarmed.
B. If the command is a Scheduled or Automatic function the point
will not be Disarmed until it returns to
normal. When the point returns to normal, the schedule will be checked and the point will immediately be
Armed or Disarmed according to the schedule.
2. A point in trouble cannot be Disarmed. When a Disarm command is received by a point that is in trouble
the cammand will be ignored.
Manual Override - This mode functions the same as Disarm with one exception: When a point is placed in
Override mode it will ignore the next Arm command sent by the Scheduler.
In addition, when a point is in Override mode it will respond to mode change commands issued manually (user
action) or automatically (UniLogic).
Disable - Disable is a maintenance feature to remove input points from the system. When a point is Disabled it is
rendered inoperable. A Disabled point does not monitor the state of the input and thus will not report trouble,
input active or input normal conditions. A Point can only be Disabled and Enabled manually (user action). The
following rules apply:
1. To return a point to the system a user must manually Enable it. When the point is enabled it is immediately
moved to an Armed or Disarmed mode, as directed by the Scheduler. If the point is in trouble at the time
the Enable command is sent, a trouble condition will be reported and the point will be Disarmed.
2. When a point is in the Disabled mode it will not respond to commands by the Scheduler or UniLogic.
3. When a point is in an off-normal condition when it is Disabled a return to normal event will be sent before
the Disable event.
Special Operational Scenerios - Inputs
There is only one way to permanently Arm an input point; remove all Scheduling and Automatic control for the
point and manually Arm it.
There are three ways to permanently Disarm an input point:
1. Manually Disable the point.
2. Assign an "Always" or 24/7 time code to the point in the Scheduler and remove all automatic control.
3. Manually Disarm the point after removing all scheduled and automatic control for the point.
If a point subject to scheduled control needs to be Disarmed prior to the scheduled time, manually Disarm it.
If a point subject to scheduled control needs to delay entering the Armed mode, place the point in Override mode.
The point can be issued a Manual Arm command later.
Rules for Output State Changes
As with inputs, there are three ways to initiate operational state changes for outputs:
Scheduled - time codes defined in the plug-in. When a time code becomes active (Start Time) the output is
activated. When the time code expires (Stop Time) the input is deactivated. During the intermediate time
between start and stop, the scheduler will not automatically alter the state of an output.
Manual - user action. Such action can only be initiated from the workstation.
Automatic - UniLogic equation execution. After evaluating an equation, UniLogic may execute an action
which sends a command to the NION.
Scheduled, manual and automatic are all equivalent in priority. As each state change command is received it is
given priority over any previously received command.