Alarm, error, and system messages   
10.2 Diagnosis 
  SIPART PS2 with and without HART 
218  Operating Instructions, 10/2013, A5E00074631-11 
 
Meaning of diagnostic value 53 
53 mA - setpoint current 
Here, you can display the current setpoint in mA. 
 
Note 
All diagnostic value are updated every 15 minutes to a non
-volatile memory, so that in case 
of a power failure only the values from the last quarter hour will be lost.