User Manual
    <Appendix 8. Advanced Diagnostics>
A8-14
IM 01C25T02-01E
A8.2.12  ILBD Parameter Lists
All the ILBD parameters belong to the SENSOR Transducer block.
Note:  The Write Mode column contains the modes in which each parameter is write enabled.
O/S:  Write enabled in O/S mode.
MAN:  Write enabled in Man mode and O/S mode.
AUTO:   Write enabled in Auto mode, Man mode, and O/S mode.
Relative
Index
Index Parameter Name
Factory 
Default
Write 
Mode
Explanation
66 2066 DIAG_MODE Stop (0) AUTO Select the function mode for the ILBD.
Stop (0):
  The blockage detection is stopped.
Calculation (1):  The blockage detection is carried out. The alarms 
are generated along with the detected result.
Reference (2):   The reference values are obtained and the update 
values are overwritten. After setting, this mode 
changes automatically to Calculation (1)
67 2067 DIAG_PERIOD 180 (s) AUTO Set the data acquisition period for ILBD within the range of 20 
to 65535 (s). Writable only when DIAG_MODE is Stop(0). If the 
process uctuation values are unsteady, change this value to the 
longer to enhance the accuracy of the blockage detection.
68 2068 DIAG_PRI 1 AUTO Set alert (DIAG_H_ALM and DIAG_L_ALM) priority for ILBD.
Writable only when DIAG_MODE is Stop(0).
69 2069 DIAG_ERR 0x0000 — The following ILBD results are shown.
• A Blocking (bit 2)
• Large Fluctuation of Low Side (bit 3)
• Large Fluctuation of High Side (bit 4)
• Low Side Blocking (bit 5)
• High Side Blocking (bit 6)
• B Blocking (bit 7)
• Invalid Ref BlkF (bit 8)
• Invalid Ref fSPh (bit 9)
• Invalid Ref fSPl (bit 10)
• Invalid Ref fDP (bit 11)
• Outside Diagnosis Range (bit 12)
• Flg Temp Low Alarm (bit 13)
• Flg Temp High Alarm (bit 14)
Bit 15 is used to link the alarm to status of PRIMARY_VALUE, 
SECONDARY_VALUE, and TERTIARY_VALUE.
70 2070 DIAG_H_ALM — Alerts for high-pressure side are indicated.
• A Blocking
• B Blocking
• Large Fluctuation of High Side
• High Side Blocking
• Invalid Reference value (BlkF, fSPh, or fDP)
• Outside Diagnosis Range
71 2071 DIAG_L_ALM — Alerts for low-pressure side blockage are indicated due to the 
following factors.
• A Blocking
• B Blocking
• Large Fluctuation of Low Side
• Low Side Blocking
• Invalid Reference value (BlkF, fSPl, or fDP)
• Outside Diagnosis Range
72 2072 DIAG_OPTION 0x08FC AUTO The alarm status linked to an analog alert and LCD display is 
selected by DIAG_OPTION in the SENSOR Transducer block. 
The alarm selected in DIAG_OPTION is corresponding to bit of 
DIAG_ERR.
BIT 15 is used to link the alarm to the status of PRIMARY_VALUE, 
SECONDARY_VALUE, and TERTIARY_VALUE.
If set to 1, the signal status becomes “UNCERTAIN: Non Specic” 
when the ILBD algorithm detects the abnormality.
Writable only when DIAG_MODE is Stop(0).










