Rockwell Automation 1440-VAD02-01RA XM-123 Aeroderivative Module User Manual

Page 129

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Publication GMSI10-UM003D-EN-P - May 2010

121

6

Get

Threshold Units

USINT

Indicates whether the
threshold and hysteresis
value are specified in
units of measure.

Set to 1
1 = Measurement units

7

Get/Set

Condition

USINT

Indicates on which side of
the threshold values the
alarm and danger
conditions exist.

0 = Greater than
1 = Less than
2 = Inside range
3 = Outside range

8

Get/Set

Alert Threshold
(High)

REAL

The threshold value for
the alert (alarm) condition
(greater threshold for
range types).

9

Get/Set

Danger
Threshold (High)

REAL

The threshold value for
the danger (shutdown)
condition (greater
threshold for range types).

10

Get/Set

Alert Threshold
Low

REAL

The lesser threshold value
for the alert (alarm)
condition for the range
condition types.

11

Get/Set

Danger
Threshold
Low

REAL

The lesser threshold value
for the danger (shutdown)
condition for the range
condition types.

12

Get/Set

Hysteresis

REAL

The amount on the safe
side of a threshold by
which the value must
recover to clear the alarm.

13

Get/Set

Threshold
(Setpoint
Multiplier)

REAL

Indicates how the
thresholds should be
adjusted when the
setpoint multiplication
function is invoked.

0 = Disable alarm
> 0 = Multiply the thresholds by
the value

14

Get/Set

Startup Period

UINT

The amount of time that
the Threshold (Setpoint)
Multiplier is applied after
the startup signal is
received.

Seconds

15

Get/Set

Speed Range
Enable

BOOL

Indicates whether this
alarm is enabled only
within a certain machine
speed range.

0 = No speed range (alarm is
always enabled)
1 = Speed range (alarm only
enabled within speed range)

16

Get/Set

Speed Range
High

REAL

Indicates the greater
threshold of the machine
speed range for which the
alarm is enabled (disabled
at greater speeds).

CPM
(must be greater than Speed
Range Low
)

Table C.28 Alarm Object Instance Attributes

Attr ID

Access
Rule

Name Data

Type

Description

Semantics

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