3 UCN Status Displays
3.8 IOP Detail Status Displays
R688 HPM High-Performance Process Manager Service 275
December 2020 Honeywell
DISABLE CALIBRATN target
Selection of the ENABLE CALIBRATN target sets the calibration bit in the IOP and results in the
display that is shown in the following figure. The DISABLE CALIBRATN target indicates that
calibration is in progress, and that the calibration bit in the IOP can be reset by the operator selecting the
DISABLE CALIBRATN target.
Figure 156 High Level Analog Input IOP Detail Status Display – DISABLE CALIBRATN
Target Selected
Calibration bit
The calibration bit can also be reset at the IOP when calibration is complete. Either action will return the
IOP to the state that is shown in Figure 155.
LLAI IOP Detail Status Display
IOP calibration
The LLAI IOP Detail Status display can be used for calibration of the IOP’s A/D converters. Targets are
provided to enable/disable the calibration procedure. The calibration procedures are found in the “IOP
Calibration Procedures” section.
LLAI IOP calibration
There are two types of calibrations possible for the LLAI IOP, A/D Converter calibration and Reference
Junction calibration. Figure 157, Figure 158 and Figure 159 show the calibration targets available for
calibration of the LLAI IOP.
ENABLE CALIBRATN and ENABLE RJ CALIBR Targets
The following figure shows the Low Level Analog Input IOP Detail Status display with the ENABLE
CALIBRATN and ENABLE RJ CALIBR targets.
Figure 157 Low Level Analog Input IOP Detail Status Display –ENABLE CALIBRATN and
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