Fix the status reported to panels

src/Agilent4uhv.cpp

@@ -1302,10 +1302,15 @@ void Agilent4uhv::read_StatMaskX(Tango::Attribute &attr)
 
 	string fs;
 	read_window_from_cache(603, fs);
- 	if (fs[fs.size()-channel] == '1')
+	if (fs[fs.size()-channel] == '0')
 		*att_value |= 0x1 << 3;
 
-	// FIXME bit 4,5,6 and 7 aren't implemented
+	string sp;
+	read_window_from_cache(602, sp);
+	if (sp[sp.size()-channel] == '1')
+		*att_value |= 0x1 << 4;
+
+	// FIXME bits 5,6 and 7 aren't implemented
 	
 	attr.set_value(att_value);