Parameters, Alarm output function, Alarm type – Watlow MICRODIN User Manual
Page 68: Alarm hysteresis, Alarm active sides, Alarm output group continued
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