From a01c671399f0fd1329a3d03188eeefbba04c1697 Mon Sep 17 00:00:00 2001 From: Henrique Silva Date: Wed, 8 Mar 2023 17:19:38 +0100 Subject: [PATCH] Add missing HYST field documentation to longin record --- modules/database/src/std/rec/longinRecord.dbd.pod | 4 ++++ 1 file changed, 4 insertions(+) diff --git a/modules/database/src/std/rec/longinRecord.dbd.pod b/modules/database/src/std/rec/longinRecord.dbd.pod index 498cf61c6..59d5c7a34 100644 --- a/modules/database/src/std/rec/longinRecord.dbd.pod +++ b/modules/database/src/std/rec/longinRecord.dbd.pod @@ -70,6 +70,10 @@ The possible alarm conditions for long inputs are the SCAN, READ, and limit alarms. The SCAN and READ alarms are called by the record or device support routines. +The HYST field controls hysteresis to prevent alarm chattering from an input +signal that is close to one of the limits and suffers from significant readout +noise. + The limit alarms are configured by the user in the HIHI, LOLO, HIGH, and LOW fields using numerical values. For each of these fields, there is a corresponding severity field which can be either NO_ALARM, MINOR, or MAJOR. The