Index: fact/FADctrl/FAD.cc
===================================================================
--- fact/FADctrl/FAD.cc	(revision 11077)
+++ fact/FADctrl/FAD.cc	(revision 11087)
@@ -20,5 +20,5 @@
 			  const char *Help;
   } CommandList[] = 
-  {{"board", &FAD::cmd_board, false, 1, "[+|-]<range>" ,"Activate or deactivate board(s)"},
+  {{"board", &FAD::cmd_board, true, 1, "<[+|-]range|none>" ,"Activate or deactivate board(s)"},
    {"status", &FAD::cmd_status, false, 0, "[range]", "Show board status information"},
    {"domino", &FAD::cmd_domino, true, 1, "<on|off>", "Switch Domino wave"},
@@ -700,4 +700,10 @@
   if (Mode != 0) Parameter[1][0] = ' ';
 
+  // Disable all boards
+  if (Match(Parameter[1], "none")) {
+	for (int i=0; i<(int) Boards.size(); i++) Boards[i]->Active = false;
+	return;
+  }
+
   // Evaluate given range
   if (!ConvertToRange(Parameter[1], R)) {
@@ -1086,5 +1092,5 @@
 	  // Close data file and terminate run
 	  if(close(Datafile) == -1) Message(ERROR, "Could not close data file (%s)", strerror(errno));
-	  else PrintMessage("Data file closed (size %.1f MByte).\n", FileSizeMB);
+	  else PrintMessage("Data file closed (size %.1f MByte, %d events).\n", FileSizeMB, NumEvents);
 
 	  Datafile = -1;
Index: fact/FADctrl/FADBoard.cc
===================================================================
--- fact/FADctrl/FADBoard.cc	(revision 11077)
+++ fact/FADctrl/FADBoard.cc	(revision 11087)
@@ -408,5 +408,6 @@
   }
 
-  memset(&PrevStatus, 0, sizeof(PrevStatus));
+  // Use not zero so that comparing Status and PrevStatus at first test will likely show differences
+  memset(&PrevStatus, 0xee, sizeof(PrevStatus));
 
   // Leave loop if program termination requested or board communication not OK
Index: fact/FADctrl/History.txt
===================================================================
--- fact/FADctrl/History.txt	(revision 11077)
+++ fact/FADctrl/History.txt	(revision 11087)
@@ -32,2 +32,3 @@
 3/6/2011	Raw data files will only contain boards active at the start of the run.
 7/6/2011	DIM event service only contains active boards
+21/6/2011	Command 'boards' takes 'none as argument