Relay Operating Modes; Echoed Mode; Ored Mode - DPS Telecom NetGuardian 216T User Manual

31
Fig. 2.13.2. Derived control relays
_AN D 1.3-5 D2.6 _OR D3.7 is logically equivalent to ((1.3 && 1.4 && 1.5 && 2.6) || 3.7)
_OR D01.03-05 D02.06 _AN D02.07 D03.10.-12 is logically equivalent to ((1.3 || 1.4 || 1.5 ||
2.6&& (2.7 && 3.10 && 3.12))

2.13.3 Relay Operating Modes

A trap is sent on a relay COS for normal or echoed controls when the Send Trap option is selected. A trap is also
sent when an oRed relay is manually controlled. A trap will not be sent for an ORed relay latched or released due
to an alarm echo.
Each relay can be mapped to one alarm point. Any system, base, or expansion point can be used. Multiple alarm
points cannot be mapped to the same control.
The operation of a control is determined by the first six characters of the control description. The format DD.PP
is used to specify the display and point number of the alarm to be mapped to the control.

2.13.3.1 Echoed Mode

An echoed control reflects the state of the alarm for which it is assigned. The user is blocked from using manual
control commands, like opr and rls .
Description format DD.PP - where DD = Display #, and PP = Point #. Example: 01.08-My Control : Echoes
the state of the alarm at display 1, point 8 to the relay (see Figure 2.13.2).

2.13.3.2 ORed Mode

An ORed control is active if the alarm for which it is assigned is active or if the control has been manually
activated. The user will see the relay mode displayed in red text.
Note: This will not work with Boolean equations.
Description format DD.PP_ where DD = Display #, and PP = Point #. Example: 01_08_My Control : ORs the
state of the alarm at display1, point 8 to the relay (see Figure 2.13.2).