Purpose: Control procedures of the pneumatic block are counted since the last
time this parameter was reset, and displayed here.
Description: Corresponds to the description for Diagnostic value '42.VENT1' /
'43.VENT2' (Page 225) referred to the diagnostics parameters
'VEN1R' and 'VEN2R' described here.
11.2.4.30 Diagnostic value '46.STORE - Save maintenance data'
Purpose: The minimum and maximum temperatures within the enclosure are
constantly determined and saved as with a min/max pointer. This
value can only be reset in the factory. In order to switch over the
temperature display between °C and °F, press the button for at
least 5 seconds in order to initiate a save function. The values of the
diagnostics parameters Diagnostic value '8.WAY - Determined
travel' (Page 216) to Diagnostic value '11.LEAK - Leakage test'
(Page 217) and Diagnostic value '21.P0 - Potentiometer value of
lower endstop (0%)' / '22.P100 - Potentiometer value of upper end‐
stop (100%)' (Page 221) to Diagnostic value '28.SSUP - Slow step
zone up' / '29.SSDN - Slow step zone down' (Page 224) are saved
in the non-volatile memory as 'data of last maintenance'. This diag‐
nostics data contains selected values whose changes can give in‐
formation about mechanical wear and tear of the valve.
This function is normally operated through the PDM, menu com‐
mand 'Diagnostics-> Save maintenance information'. The data of
the last maintenance operation can be compared with the current
data using SIMATIC PDM.
11.2.4.31 Diagnostic value '47.PRUP - Prediction up' / '48.PRDN - Prediction down'
Display range: 1 ... 40
Purpose: This value specifies the prediction of the controller for the up
(PRUP) and down (PRDN) movements.
For more information, refer also to the section Optimization of con‐
troller data (Page 101).
Factory setting: 1
Diagnostics and troubleshooting
11.2 Diagnostics
SIPART PS2 with 4 to 20 mA/HART
226 Operating Instructions, 11/2019, A5E00074631-AE
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