diff -r ec6223c3b7ec -r 489be2180f71 tool/CommandSdos.cpp
--- a/tool/CommandSdos.cpp	Wed Feb 24 16:27:11 2010 +0100
+++ b/tool/CommandSdos.cpp	Wed Feb 24 17:24:20 2010 +0100
@@ -127,7 +127,7 @@
     unsigned int i, j;
     const DataType *d;
     
-    if (showHeader)
+    if (showHeader && slave.sdo_count)
         cout << "=== Master " << m.getIndex()
             << ", Slave " << slave.position << " ===" << endl;