Index: /trunk/Ohana/src/opihi/cmd.data/read_vectors.c
===================================================================
--- /trunk/Ohana/src/opihi/cmd.data/read_vectors.c	(revision 41672)
+++ /trunk/Ohana/src/opihi/cmd.data/read_vectors.c	(revision 41673)
@@ -706,4 +706,7 @@
     char name[80];
       
+    // for both BINARY and ASCII tables, Nval is the number of fields of the given type
+    // e.g., there may be 3 related floating point fields fields or 21 connected ascii characters.
+
     Nval = 0;
     if (Binary) {