diff --git a/config/devices.properties b/config/devices.properties
new file mode 100644
index 0000000..e145a6b
--- /dev/null
+++ b/config/devices.properties
@@ -0,0 +1 @@
+EDATA=ch.psi.pshell.epics.ChannelDoubleArray EDATA -1 3 ReadOnly