Add end_time_estimated as required, make start_time required. Leave

end_time optional. -- HJB
nexusformat · Jan 5, 2020 · c61d348 · c61d348
1 parent 2d90812
commit c61d348
Showing 1 changed file with 6 additions and 4 deletions.
diff --git a/applications/NXmx.nxdl.xml b/applications/NXmx.nxdl.xml
@@ -62,7 +62,7 @@
 		<group type="NXentry">
 			<field name="title" type="NX_CHAR" minOccurs="0" />
 
-			<field name="start_time" type="NX_DATE_TIME" recommended="true" >
+			<field name="start_time" type="NX_DATE_TIME" >
 				<doc>
 				ISO 8601 time/date of the first data point collected in UTC,
 				using the Z suffix to avoid confusion with local time.
@@ -76,12 +76,14 @@
 				ISO 8601 time/date of the last data point collected in UTC,
 				using the Z suffix to avoid confusion with local time.
 				Note that the time zone of the beamline should be provided in
-				NXentry/NXinstrument/time_zone.  This field should only be
-				filled when the value is accurately observed.   
+				NXentry/NXinstrument/time_zone. This field should only be 
+				filled when the value is accurately observed. If the data 
+				collection aborts or otherwise prevents accurate recording of
+				the end_time, this field should be omitted.   
 				</doc>
 			</field>
 
-			<field name="end_time_estimated" type="NX_DATE_TIME" optional="true" >
+			<field name="end_time_estimated" type="NX_DATE_TIME" >
 				<doc>
 				ISO 8601 time/date of the last data point collected in UTC,
 				using the Z suffix to avoid confusion with local time.