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Last Commit: 19 Nov 25
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Tuesday 23 May 2023
2:56 pm

Darren Cox <darren_m@cox.net>

DEN-15396 Use greater of 10sec or 10 Rotor turn times for minimum persistent error time.

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    ./DialInFlow.c
9:45 am

Sean Nash

Merge branch 'DEN-13865-fw-duplicate-alarms-occur-during-post-treatment-rinseback-and-block-workflow' into develop

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    ./SyringePump.c
  2. … 1 more file in changeset.
9:42 am

Sean Nash

DEN-13865: Implemented alarm system feature to prevent alarm re-trigger per new properties. Addressed DEN-15295.

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    ./SyringePump.c
  2. … 3 more files in changeset.
8:36 am

Sean Nash

So then can we remove power loss alarm active checks from this condition (just keep the cpld power loss check as before)?

So then can we remove power loss alarm active checks from this condition (just keep the cpld power loss check as before)?

8:35 am

Sean Nash

Do we need the alarm active checks? Isn't power loss check sufficient?

Do we need the alarm active checks? Isn't power loss check sufficient?

12:02 am

Dara Navaei

HD-DEN-13865_FW Duplicate Alarms Occur During Post Treatment Rinseback And Block Workflow
HD-DEN-13865_FW Duplicate Alarms Occur During Post Treatment Rinseback And Block Workflow
Monday 22 May 2023
5:33 pm

Bill Bracken <bill@criticalsoftwaresolutions.com>

Merge remote-tracking branch 'origin/DEN-15363-fw-handle-bld-sensor-communication-errors' into develop

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    ./BloodLeak.c
4:48 pm

Bill Bracken <bill@criticalsoftwaresolutions.com>

DEN-15363 Reuse alarm ID 63 for Blood Leak communications errors

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    ./BloodLeak.c
1:40 pm

Michael Garthwaite

11:59 am

jtaylor  (deleted user)

The root cause is that abnormal AC power loss on the HD causes abnormal operating conditions and spurious errors. The valves return to position after the alarm is cleared, not when AC returns. The ...

The root cause is that abnormal AC power loss on the HD causes abnormal operating conditions and spurious errors. The valves return to position after the alarm is cleared, not when AC returns. The timer gives a ten-second window following removing the power fail signal and the alarm condition, where the alarm block is active. The original block used the alarms alone, we changed to the CPLD power loss detection - which returns with the return of AC. Clearing the alarms late means removing the block before the valves return to normal operation.

I think there are two approaches. We already have distributed failsafe that is entered on power fail, which we recover from after the alarm is cleared.
1. Create a pervasive state that affects every operating mode, allowing transitions to "safe" states during alarms, then back to the original operating state. The safe state would not register errors until after the transition back to normal operation.
2. Block errors until both AC is returned and the alarm is cleared when normal operation is restored.

The second approach is much simpler and addresses the root problem: odd control configurations resulting from having alarms with conflicting controls. In this case, the secondary alarms are spurious since they result from the valves dropping into a safe position, for instance, on the loss of AC. We also have a handful of other errors that occur under these conditions, fan speed, for instance, as well as valve positions,

11:57 am

jtaylor  (deleted user)

Added alarm 62 detection disable as suggested.

Added alarm 62 detection disable as suggested.

10:02 am

Dara Navaei

HD-DEN-15396_2 Alarm 42 HD Fault Dpo Rotor Encountered IN Blood Prime Dvt 00
HD-DEN-15396_2 Alarm 42 HD Fault Dpo Rotor Encountered IN Blood Prime Dvt 00
9:44 am

Sean Nash

Fixed merge conflict.

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    ./Temperatures.c
  2. … 3 more files in changeset.
9:01 am

Sean Nash

DEN-15396-2: Fixed rotor speed chk persistence function to handle negative motor speeds.

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    ./DialInFlow.c
Sunday 21 May 2023
2:44 pm

Dara Navaei

2:18 pm

Dara Navaei

Bamboo Commit: Updated the Copyright section and replaced tabs with 4 spaces

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    ./DialInFlow.c
    • -2
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    ./DialOutFlow.c
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    ./Temperatures.c
2:14 pm

Dara Navaei and Sean Nash

2:11 pm

Dara Navaei

DEN-15396 addressed a code review comment

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    ./DialInFlow.c
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    ./DialOutFlow.c
1:48 pm

Dara Navaei

HD-DEN-15396_Alarm 42 HD Fault Dpo Rotor Encountered IN Blood Prime Dvt 001 2
HD-DEN-15396_Alarm 42 HD Fault Dpo Rotor Encountered IN Blood Prime Dvt 001 2
1:45 pm

Dara Navaei

DEN-15396 opened up the persistent time of the DPo pumps rotor speed check

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    ./DialOutFlow.c
    • -1
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    ./Temperatures.c
Saturday 20 May 2023
6:04 pm

Dara Navaei

Bamboo Commit: Updated the Copyright section and replaced tabs with 4 spaces

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    ./BloodLeak.c
  2. … 4 more files in changeset.
6:03 pm

Dara Navaei

6:02 pm

Sean Nash

6:01 pm

Dara Navaei

DEN-15375 fixed the implicit compile issues

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    ./BloodLeak.c
  2. … 1 more file in changeset.
4:46 pm

Dara Navaei

HD-DEN-15375_FW Dialysate Heating Fixes
HD-DEN-15375_FW Dialysate Heating Fixes
Friday 19 May 2023
10:37 am

Bill Bracken <bill@criticalsoftwaresolutions.com>

DEN-15363 Add windowed timer

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    ./BloodLeak.c
9:59 am

Sean Nash

This doesn't seem like a fix to root cause - may not work if user clears alarm quickly. Suggest looking at valve driver where alarm 62 is detected/triggered and maybe zeroing positionOutOfRangeCoun...

This doesn't seem like a fix to root cause - may not work if user clears alarm quickly.
Suggest looking at valve driver where alarm 62 is detected/triggered and maybe zeroing positionOutOfRangeCounter (reset 1 sec persistence) if AC power is out. That way, when AC is restored, valves will have a whole second to get where they're supposed to be before alarm is triggered.

Thursday 18 May 2023
2:01 pm

Dara Navaei

HD-DEN-15363_FW Handle Bld Sensor Communication Errors
HD-DEN-15363_FW Handle Bld Sensor Communication Errors
Wednesday 17 May 2023
10:02 pm

Dara Navaei

HD-DEN-15367_HD DG Test Configuration Setup
HD-DEN-15367_HD DG Test Configuration Setup
5:29 pm

Dara Navaei

Bamboo Commit: Updated the Copyright section and replaced tabs with 4 spaces

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    ./Valves.c
  2. … 9 more files in changeset.