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Last Commit: 19 Nov 25
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Saturday 27 May 2023
9:50 pm

Sean Nash

DEN-15359: finished arterial/venous pressure limits window update.

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    ./PresOccl.c
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    ./PresOccl.h
  3. … 3 more files in changeset.
Friday 26 May 2023
3:20 pm

jtaylor  (deleted user)

1:46 pm

Sean Nash

Will always be integers. Prefer to store them that way.

Will always be integers. Prefer to store them that way.

1:43 pm

Sean Nash

DEN-15359: Additional implementation of arterial/venous pressure limit windows.

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    ./PresOccl.c
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    ./PresOccl.h
  3. … 3 more files in changeset.
9:39 am

jtaylor  (deleted user)

If we think that this is the only spurious alarm that may occur with power loss. We know fan rpm also occurs, but the fans do recover when AC returns. Comm errors have occurred, but they seem rare ...

If we think that this is the only spurious alarm that may occur with power loss. We know fan rpm also occurs, but the fans do recover when AC returns. Comm errors have occurred, but they seem rare now; it's unclear whether they stop with AC returning or the operational state. Would we expect other operational impacts of operating from battery, or the loss and return of AC? Battery alarms, etc.?

The block timer runs from the time the condition clears in alarm management (cpld flag, or flag plus alarm state). If alarms are not included here, the timer may (probably will) time out with the alarm still active and the valves still improperly positioned. The valve position error will occur immediately after clearing the alarms, even with the alarms status checked in valves. The timer could be relocated to valves, but that doesn't take care of other sources of alarms after power recovery.

9:09 am

jtaylor  (deleted user)

this might be clearer written as: data = MAX( 0.0F, data )

this might be clearer written as: data = MAX( 0.0F, data )

Thursday 25 May 2023
1:11 pm

Sean Nash

DEN-15359: Added treatment parameter for asymmetric on venous pressure alarm limits.

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    ./PresOccl.c
  2. … 5 more files in changeset.
11:44 am

wbracken  (deleted user)

Could these recently added variables be defined as F32 instead of casting?

Could these recently added variables be defined as F32 instead of casting?

11:06 am

Sean Nash

DEN-15359: Addressed DEN-15381.

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    ./Bubble.c
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    ./Bubble.h
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8:58 am

Sean Nash

DEN-15359: Addressed DEN-15284.

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    ./PresOccl.c
Wednesday 24 May 2023
1:29 pm

Dara Navaei

HD-DEN-15359_Usability Arterial And Venous Pressure Alarm Limits
HD-DEN-15359_Usability Arterial And Venous Pressure Alarm Limits
11:50 am

Sean Nash

DEN-15359: Updated tx params to change art/ven pressure limit params from min/max to window.

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    ./PresOccl.c
  2. … 4 more files in changeset.
9:20 am

jtaylor  (deleted user)

The valves are not returned to their target position until the alarm is cleared. I could make a broader change, but is that what you're suggesting?

The valves are not returned to their target position until the alarm is cleared. I could make a broader change, but is that what you're suggesting?

8:51 am

Sean Nash

DEN-13865: Addressed code review comment.

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    ./SyringePump.c
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
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    ./DialOutFlow.c
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    ./Temperatures.c