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Reference Manual
IP2030/RM, Rev AA
Section 5: Servicing and Health Checking
June 2014
Section 5: Servicing and Health Checks
5.3.7 Diagnostic data for the MCU900 Series control unit
Menu: MONITOR / [CONTROLLER /] DIAGNOSTICS
I/P status (input status)
D835 I/P Status
This indicates a series of 0 and 1 digits which represent the inactive (0) and active (1)
digital trigger inputs.
The first digit represents digital trigger input IN1, and the second digit represents
digital trigger input IN2.
Current i/p (current input)
D840 Current I/P
This indicates the present electrical input current in mA.
See the section "Optional change: transmitter input channel settings (advanced users)”
on page 43 for how this parameter is used.
mA input
D842 mA Input %
This indicates the present electrical input current as a percentage of the 4–20 mA
range.
See "Optional change: transmitter input channel settings (advanced users)” on page 43
for how this parameter is used.
CU temperature
D844 CU Temperature
This indicates the present operating temperature within the MCU900 Series control
unit.
If above 65 C, it is a fault condition (see "Fault mode relay” on page 82).
Next pump down
D845 Next Pump down
This indicates the time remaining before the next pump-down is started.
See "Pump-down (Mobrey MCU901 and MCU902 only)” on page 85 for feature details.
Free memory (Mobrey MCU90F only)
D846 Free Memory
This indicates the percentage of free memory remaining for the data logging feature.
See "P593 Low Mem Alarm (Default is 0%)” on page 64 for the Low Memory Alarm
feature details.
Date of change
D848 Date of Change
This indicates the date on which a parameter was last edited.