diff --git a/PARAM_DEF/soho_erne_heda.xml b/PARAM_DEF/soho_erne_heda.xml
new file mode 100644
index 0000000..47d28d6
--- /dev/null
+++ b/PARAM_DEF/soho_erne_heda.xml
@@ -0,0 +1,13 @@
+<?xml version="1.0"?>
+<param xml:id='soho_erne_heda'>
+  <info>
+    <fill_value>-1</fill_value>
+  </info>
+  <get>
+     <vi name='soho:erne:hed'>
+        <baseParam name='AH'/>
+    </vi>
+  </get>
+  <process/>
+  <output/>
+</param> 
diff --git a/PARAM_DEF/soho_erne_hedp.xml b/PARAM_DEF/soho_erne_hedp.xml
new file mode 100644
index 0000000..34bf294
--- /dev/null
+++ b/PARAM_DEF/soho_erne_hedp.xml
@@ -0,0 +1,13 @@
+<?xml version="1.0"?>
+<param xml:id='soho_erne_hedp'>
+  <info>
+    <fill_value>-1</fill_value>
+  </info>
+  <get>
+     <vi name='soho:erne:hed'>
+        <baseParam name='PH'/>
+    </vi>
+  </get>
+  <process/>
+  <output/>
+</param> 
diff --git a/PARAM_DEF/soho_erne_leda.xml b/PARAM_DEF/soho_erne_leda.xml
index f5b247e..35e5f09 100644
--- a/PARAM_DEF/soho_erne_leda.xml
+++ b/PARAM_DEF/soho_erne_leda.xml
@@ -1,5 +1,8 @@
 <?xml version="1.0"?>
 <param xml:id='soho_erne_leda'>
+  <info>
+    <fill_value>-1</fill_value>
+  </info>
   <get>
      <vi name='soho:erne:led'>
         <baseParam name='AL'/>
diff --git a/PARAM_DEF/soho_erne_ledp.xml b/PARAM_DEF/soho_erne_ledp.xml
index 4ee0679..bf55591 100644
--- a/PARAM_DEF/soho_erne_ledp.xml
+++ b/PARAM_DEF/soho_erne_ledp.xml
@@ -1,5 +1,8 @@
 <?xml version="1.0"?>
 <param xml:id='soho_erne_ledp'>
+  <info>
+    <fill_value>-1</fill_value>
+  </info>
   <get>
      <vi name='soho:erne:led'>
         <baseParam name='PL'/>
--
libgit2 0.21.2