diff --git a/apps/abs/models.py b/apps/abs/models.py
index f960178..1d4566c 100644
--- a/apps/abs/models.py
+++ b/apps/abs/models.py
@@ -183,8 +183,8 @@ OPERATION_MODES = (
 class ABSConfiguration(Configuration):
     active_beam     = models.CharField(verbose_name='Active Beam', max_length=20000, default="{}")
     module_status   = models.CharField(verbose_name='Module Status', max_length=10000, default=json.dumps(status_default))
-    operation_mode  = models.CharField(verbose_name='Operation Mode', max_length = 20, choices=OPERATION_MODES, default = 0)
-    operation_value = models.CharField(verbose_name='Periodic (seconds)', max_length=20000, default="10", null=True, blank=True)
+    operation_mode  = models.PositiveSmallIntegerField(verbose_name='Operation Mode', choices=OPERATION_MODES, default = 0)
+    operation_value = models.FloatField(verbose_name='Periodic (seconds)', default="10", null=True, blank=True)
 
     class Meta:
         db_table = 'abs_configurations'
@@ -413,7 +413,7 @@ class ABSConfiguration(Configuration):
         #-------------Write each abs module-----------
         if beams:
             beams_status = ast.literal_eval(self.module_status)
-            for i in range(62,65): #(62,65)
+            for i in range(61,64): #(62,65)
                 try:
                     answer = self.module_conf(i, beams)
                     beams_status[str(i)] = 1
diff --git a/apps/abs/static/js/abs.js b/apps/abs/static/js/abs.js
new file mode 100644
index 0000000..4fdc38d
--- /dev/null
+++ b/apps/abs/static/js/abs.js
@@ -0,0 +1,19 @@
+$(document).ready(function() {
+	updateOperationMode()
+});
+
+$("#id_operation_mode").on('change', function() {
+  updateOperationMode()
+});
+
+function updateOperationMode(){
+	var operation_mode = $("#id_operation_mode").val();
+	if (operation_mode==0){
+		document.getElementById("id_operation_value").disabled=true;
+		$("#id_operation_value").hide();
+	}
+	else {
+		document.getElementById("id_operation_value").disabled=false;
+		$("#id_operation_value").show();
+	}
+}
diff --git a/apps/abs/templates/abs_conf_edit.html b/apps/abs/templates/abs_conf_edit.html
index ee6c688..674eb54 100644
--- a/apps/abs/templates/abs_conf_edit.html
+++ b/apps/abs/templates/abs_conf_edit.html
@@ -32,6 +32,7 @@
 
 
 {% block extra-js%}
+  <script src="{% static 'js/abs.js' %}"></script>
   <script type="text/javascript">
 
     $("#bt_toggle").click(function() {
diff --git a/apps/abs/views.py b/apps/abs/views.py
index 0d9db72..0927e2e 100644
--- a/apps/abs/views.py
+++ b/apps/abs/views.py
@@ -245,7 +245,7 @@ def send_beam(request, id_conf, id_beam):
     beam = get_object_or_404(ABSBeam, pk=id_beam)
     beams_list    = ABSBeam.objects.filter(abs_conf=conf)
     #To set this beam as an Active Beam
-    beam.set_activebeam()
+    beam.set_as_activebeam()
     #To send beam position to abs-modules
     i = 0
     for b in beams_list: