diff --git a/daffodil-core/src/main/scala/org/apache/daffodil/runtime1/infoset/InfosetImpl.scala b/daffodil-core/src/main/scala/org/apache/daffodil/runtime1/infoset/InfosetImpl.scala
index 7d14db9c15..311057bc38 100644
--- a/daffodil-core/src/main/scala/org/apache/daffodil/runtime1/infoset/InfosetImpl.scala
+++ b/daffodil-core/src/main/scala/org/apache/daffodil/runtime1/infoset/InfosetImpl.scala
@@ -335,7 +335,12 @@ sealed abstract class InfosetNoDataExceptionBase(
 case class InfosetNoDataException(
   override val diElement: DIElement,
   override val erd: ElementRuntimeData
-) extends InfosetNoDataExceptionBase(diElement, erd, "Element does not have a value.")
+) extends InfosetNoDataExceptionBase(
+    diElement,
+    erd,
+    "Element does not have a value. " +
+      "This may indicate a circular dependency in the schema."
+  )
 
 case class InfosetSelfReferencingException(
   override val diElement: DIElement,
diff --git a/daffodil-test/src/test/resources/org/apache/daffodil/section00/general/testUnparserGeneral.tdml b/daffodil-test/src/test/resources/org/apache/daffodil/section00/general/testUnparserGeneral.tdml
index c8a226f4fa..549cef2799 100644
--- a/daffodil-test/src/test/resources/org/apache/daffodil/section00/general/testUnparserGeneral.tdml
+++ b/daffodil-test/src/test/resources/org/apache/daffodil/section00/general/testUnparserGeneral.tdml
@@ -994,4 +994,127 @@
     <tdml:document>a</tdml:document>
   </tdml:unparserTestCase>
 
+  <tdml:defineSchema name="truncatedString1">
+    <xs:include schemaLocation="/org/apache/daffodil/xsd/DFDLGeneralFormat.dfdl.xsd" />
+
+    <dfdl:format ref="ex:GeneralFormat" encoding="ascii"
+      lengthUnits="bytes"/>
+
+    <xs:element name="e1">
+      <xs:complexType>
+        <xs:sequence>
+          <xs:element name="len" type="xs:int" dfdl:lengthKind="explicit" dfdl:length="1"
+            dfdl:outputValueCalc="{ if (dfdl:valueLength(../ex:data , 'bytes') gt 5) then 5 else dfdl:valueLength(../ex:data , 'bytes')  }" />
+          <xs:element name="data" type="xs:string" dfdl:lengthKind='explicit'
+            dfdl:length='{../ex:len}' dfdl:truncateSpecifiedLengthString='yes'/>
+        </xs:sequence>
+      </xs:complexType>
+    </xs:element>
+
+  </tdml:defineSchema>
+
+  <tdml:unparserTestCase name="truncatedString_1" root="e1" model="truncatedString1">
+    <tdml:infoset>
+      <tdml:dfdlInfoset>
+        <ex:e1>
+          <ex:len>0</ex:len>
+          <ex:data>ABCDEFG</ex:data>
+        </ex:e1>
+      </tdml:dfdlInfoset>
+    </tdml:infoset>
+    <tdml:errors>
+      <tdml:error>not have a value</tdml:error>
+      <tdml:error>circular dependency</tdml:error>
+    </tdml:errors>
+  </tdml:unparserTestCase>
+
+    <tdml:defineSchema name="truncatedString2">
+    <xs:include schemaLocation="/org/apache/daffodil/xsd/DFDLGeneralFormat.dfdl.xsd" />
+
+    <dfdl:format ref="ex:GeneralFormat" encoding="ascii"
+      lengthUnits="bytes"/>
+
+    <xs:element name="e1">
+      <xs:complexType>
+        <xs:sequence>
+          <xs:element name="len" type="xs:int" dfdl:lengthKind="explicit" dfdl:length="1"
+            dfdl:outputValueCalc="{ if (fn:string-length(../ex:data) gt 5) then 5 else fn:string-length(../ex:data) }" />
+          <xs:element name="data" type="xs:string" dfdl:lengthKind='explicit'
+            dfdl:length='{../ex:len}' dfdl:truncateSpecifiedLengthString='yes'/>
+        </xs:sequence>
+      </xs:complexType>
+    </xs:element>
+  </tdml:defineSchema>
+
+  <tdml:unparserTestCase name="truncatedString_2" root="e1" model="truncatedString2">
+    <tdml:infoset>
+      <tdml:dfdlInfoset>
+        <ex:e1>
+          <ex:len>0</ex:len>
+          <ex:data>ABCDEFG</ex:data>
+        </ex:e1>
+      </tdml:dfdlInfoset>
+    </tdml:infoset>
+    <tdml:errors>
+      <tdml:error>not have a value</tdml:error>
+      <tdml:error>circular dependency</tdml:error>
+    </tdml:errors>
+  </tdml:unparserTestCase>
+
+    <tdml:defineSchema name="truncatedString3">
+    <xs:include schemaLocation="/org/apache/daffodil/xsd/DFDLGeneralFormat.dfdl.xsd" />
+
+    <dfdl:format ref="ex:GeneralFormat" encoding="ascii"
+      lengthUnits="bytes"/>
+
+    <xs:element name="e1">
+      <xs:complexType>
+        <xs:sequence>
+          <xs:element name="data" type="xs:string" dfdl:lengthKind='explicit'
+            dfdl:length='{ if (fn:string-length(.) gt 5) then 5 else fn:string-length(.) }' dfdl:truncateSpecifiedLengthString='yes'/>
+        </xs:sequence>
+      </xs:complexType>
+    </xs:element>
+  </tdml:defineSchema>
+
+  <tdml:unparserTestCase name="truncatedString_3" root="e1" model="truncatedString3">
+    <tdml:infoset>
+      <tdml:dfdlInfoset>
+        <ex:e1>
+          <ex:data>ABCDEFG</ex:data>
+        </ex:e1>
+      </tdml:dfdlInfoset>
+    </tdml:infoset>
+    <tdml:document>ABCDE</tdml:document>
+  </tdml:unparserTestCase>
+
+    <tdml:defineSchema name="truncatedString4">
+    <xs:include schemaLocation="/org/apache/daffodil/xsd/DFDLGeneralFormat.dfdl.xsd" />
+
+    <dfdl:format ref="ex:GeneralFormat" encoding="ascii"
+      lengthUnits="bytes"/>
+
+    <xs:element name="e1">
+      <xs:complexType>
+        <xs:sequence>
+          <xs:element name="data" type="xs:string" dfdl:lengthKind='explicit'
+            dfdl:length="{ if (dfdl:valueLength(. , 'bytes') gt 5) then 5 else dfdl:valueLength(. , 'bytes') }" dfdl:truncateSpecifiedLengthString='yes'/>
+        </xs:sequence>
+      </xs:complexType>
+    </xs:element>
+  </tdml:defineSchema>
+
+  <tdml:unparserTestCase name="truncatedString_4" root="e1" model="truncatedString4">
+    <tdml:infoset>
+      <tdml:dfdlInfoset>
+        <ex:e1>
+          <ex:data>ABCDEFG</ex:data>
+        </ex:e1>
+      </tdml:dfdlInfoset>
+    </tdml:infoset>
+    <tdml:errors>
+      <tdml:error>Value length unknown</tdml:error>
+    </tdml:errors>
+  </tdml:unparserTestCase>
+
 </tdml:testSuite>
diff --git a/daffodil-test/src/test/scala/org/apache/daffodil/section00/general/TestUnparserGeneral.scala b/daffodil-test/src/test/scala/org/apache/daffodil/section00/general/TestUnparserGeneral.scala
index 93b2725784..c380450f2f 100644
--- a/daffodil-test/src/test/scala/org/apache/daffodil/section00/general/TestUnparserGeneral.scala
+++ b/daffodil-test/src/test/scala/org/apache/daffodil/section00/general/TestUnparserGeneral.scala
@@ -79,4 +79,10 @@ class TestUnparserGeneral extends TdmlTests {
   @Test def emptyOutputNewLine1 = test
 
   @Test def unparseIgnorableContent = test
+
+  // DFDL-1598
+  @Test def truncatedString_1 = test
+  @Test def truncatedString_2 = test
+  @Test def truncatedString_3 = test
+  @Test def truncatedString_4 = test
 }