changes according to Marek's request

@emilioasensiconejero

99-Shared/Heaters/faceplates/EH_HeaterSupply_PID_Analog_Faceplate_HeaterFaceplate.bob

 <?xml version="1.0" encoding="UTF-8"?>
-<!--Saved on 2023-11-16 13:04:07 by Dominik Domagała-->
+<!--Saved on 2023-11-20 15:52:42 by Dominik Domagała-->
 <display version="2.0.0">
   <name>EH Heater Power Supply PID Analog Faceplate</name>
   <width>950</width>
@@ -62,7 +62,7 @@
                   <exp bool_exp="true">
                     <expression>pv0</expression>
                   </exp>
-                  <pv_name>${SecSub}:${Dis}-${Dev}-${Index}:PHiLim</pv_name>
+                  <pv_name>${SecSub}:${Dis}-${Dev}-${Index}:PSU_MV</pv_name>
                 </rule>
                 <rule name="MinRule (duplicate)" prop_id="minimum" out_exp="true">
                   <exp bool_exp="true">