diff --git a/config/devices.properties b/config/devices.properties
index e145a6b..d45eb2b 100644
--- a/config/devices.properties
+++ b/config/devices.properties
@@ -1 +1 @@
-EDATA=ch.psi.pshell.epics.ChannelDoubleArray EDATA -1 3 ReadOnly
+EDATA=ch.psi.pshell.epics.ChannelDoubleArray EDATA 3