Diagnostic Value '33.T1; Diagnostic Value '42.Vent1' / '43.Vent2; Diagnostic Value '44.Ven1R' / '45.Ven2R - Siemens SIPART PS2 Series Operating Instructions Manual

11.2.4.27 Diagnostic value '33.T1' ... '41.T9' - Number of operating hours in the temperature range
1 to 9
Display range:
Purpose:
Temperature range [°C]
Operating hours in temperature ranges T1 to T2
11.2.4.28

Diagnostic value '42.VENT1' / '43.VENT2'

'42.VENT1' number of switching cycles pneumatic block, Valve 1
'43.VENT2' number of switching cycles pneumatic block, Valve 2
Display range:
Purpose:
Description:
11.2.4.29

Diagnostic value '44.VEN1R' / '45.VEN2R'

'44.VEN1R' number of switching cycles pneumatic block, Valve 1, resettable
'45.VEN2R' number of switching cycles pneumatic block, Valve 2, resettable
Display range:
SIPART PS2 with 4 to 20 mA/HART
Operating Instructions, 11/2019, A5E00074631-AE
0 ... 4.29E9
Statistics about the duration of operation in different temperature
ranges is maintained in the device. An average of the measured
temperature is taken every hour and the counter assigned to the
corresponding temperature range is incremented. This helps in
drawing conclusions about the past operating conditions of the de‐
vice and the entire control valve.
The temperature ranges are classified as follows:
T1 T2 T3
- ≥ -30 ≥ -15
≤ -30 < -15 < 0
0 ... 4.29E9
Control operations of the pneumatic block are summarized and dis‐
played in this parameter.
The pneumatic block of the positioner pressurizes and depressurizes
the actuator. The characteristic service life of the pneumatic block de‐
pends on the load. The average service life is approx. 200 million
switching cycles. The number of control procedures for the switching
cycles serves to assess the switching frequency of the pneumatic block.
Counting procedure for single-acting actuators:
● Pressurize => 42.VENT1
● Depressurize => 43.VENT2
Counting procedure for double-acting actuators:
● Pressurize (Y2) / Depressurize (Y1) => 42.VENT1
● Depressurize (Y1) / Pressurize (Y2) => 43.VENT2
The value is written hourly into a nonvolatile memory.
0 ... 4.29E9
Diagnostics and troubleshooting
T4 T5 T6
≥ 0 ≥ 15 ≥ 30
< 15 < 30 < 45
11.2 Diagnostics
T7 T8 T9
≥ 45 ≥ 60 ≥ 75
< 60 < 75 -
225