diff --git a/config/devices.properties b/config/devices.properties
index 5570a9e..43a3f15 100644
--- a/config/devices.properties
+++ b/config/devices.properties
@@ -1,4 +1,4 @@
-#frequency=ch.psi.pshell.epics.ChannelDouble|X11MA-ES4:SAMPLE-TIME|Read||true
+frequency=ch.psi.pshell.epics.ChannelDouble|X11MA-ES4:SAMPLE-TIME|Read||true
 MCPArray=ch.psi.pshell.epics.ChannelIntegerArray|X11MA-ES4:PHC-CTRWF2|Read||true
 MCPtotal=ch.psi.pshell.epics.ChannelInteger|X11MA-ES4:CTR|Read||true
 energy=ch.psi.pshell.epics.ChannelDouble|X11MA-PGM:rbkenergy|Read||true