diff --git a/src/device/power_switch.cpp b/src/device/power_switch.cpp
index 548c6f9..949a68c 100644
--- a/src/device/power_switch.cpp
+++ b/src/device/power_switch.cpp
@@ -46,7 +46,11 @@ void powerSwitch::HandlePeriodic() {
 TMFeResult powerSwitch::HandleInit(const std::vector<std::string> &args) {
 
     midas::odb o = {
-        {SETTING_DIR.c_str(), {{EDITABLE_VARNAME.c_str(), COMMAND_VARNAME}}}};
+        {SETTING_DIR.c_str(), {{EDITABLE_VARNAME.c_str(), COMMAND_VARNAME}}},
+        {VARIABLES_DIR.c_str(),
+         {{COMMAND_VARNAME.c_str(), {""}}, {READBACK_VARNAME.c_str(), {""}}}}
+
+    };
 
     o.connect(this->equipmentPath.c_str());