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Chapter 3: Operating with AnaWin 3 PPC-2000 User’s Guide

124 Watlow Anafaze Doc.# 30002-00 Rev 2.3

HP Output Dest

Choose a digital output to toggle when the high process alarm

occurs. This may be any available hardware output or Soft

Boolean register accessible by the logic program. The default

for this parameter is Not Assigned. Outputs that are already

assigned to control output destinations will be rejected. The

same output may not be used for multiple alarm output

destinations.

Range: Not Assigned, or any of the digital outputs on the DigI/O

spreadsheet, or any of the

Soft Bool registers.

HD Offset

Designate an offset value that determines the high deviation

alarm limit relative to the current set point. The high deviation

alarm occurs when the process variable is greater than the

channel set point plus this value. The alarm limit changes

when the set point changes. The default high deviation alarm

offset is 0.

Range: same as the range of the input type selected. See Table

3.15 on page 130.

HD Type

Set the high deviation alarm function. See Process Alarms on

page 95 for a description of the settings.

Range: Alarm or Control

HD Enable

Set this field to enable or disable the high deviation alarm.

When it is Enabled, the high deviation alarm activates if the

process variable (PV) rises above the set point by more than the

HD Offset. The PV must drop below the high deviation limit

minus the alarm deadband to be reset (cleared). When this

parameter is set to Disabled, the high deviation alarm does not

occur.

Range: Enable or Disable

HD Output Dest

Choose a digital output to toggle when the high deviation alarm