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Parameters, Alarm output function, Alarm type – Watlow MICRODIN User Manual

Page 68: Alarm hysteresis, Alarm active sides, Alarm output group continued

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Parameters

5 . 2 0 Wa t l o w M i c r o D I N

= R e a d O n l y ;

= R e a d / W r i t e ;

= Tu r n O n / O f f

ON

Alarm Output Function

• Turn the alarm output on or off.
• Read/write
• Modbus: 717

Range

0: off
1: alarm

Default

0: off

Active

always

Alarm Type

• Select alarm type. A process alarm responds when the temperature

leaves a fixed range. A deviation alarm responds when the
temperature deviates from the set point by a set number of
degrees.

• Read/write
• Modbus: 719

Range

0: process alarm
1: deviation alarm

Default

0: process

Active

if Alarm Output Function (Alarm Output Group) is set to alarm

Affects

Alarm Low (Alarm Output Group) changes to sensor low for

process alarms or -1999 for deviation alarm.

Alarm High (Alarm Output Group) changes to sensor high for

process alarms or 9999 for deviation alarm.

Alarm Hysteresis

• Sets the switching hysteresis for the alarm output. This defines a

band on the inside of the alarm set point. When the process
temperature is in this band, the alarm state will not change.

• Read/write
• Modbus: 720

Range

1 to 9999

Default

3

Active

if Alarm Output Function (Alarm Output Group) is set to alarm

Alarm Active Sides

• Select which side or sides the alarm is active on.
• Read/write
• Modbus: 723

Alarm Output Group continued