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Simultaneous alerts (Heltzel)

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Joe Moran edited this page Jul 13, 2018 · 22 revisions

Simultaneous Suspend Deliver and Auto-off Alerts

Method

  1. Set 45U low reservoir alert set.
  2. Set suspend delivery for 1 hour.
  3. Set auto off to 1 hour, so it will alert soon after.

Sequence

Set 45U low reservoir alert set

2018-07-08T16:48:07.021493 PDM
19 LL NNNNNNNN IVXX YYYY 0J0K
19 0a 8a57736b 4c00 01c2 0102

A $19 Configure Alerts command is being done for alert #4 with the 'b' bit set for setting a standard low reservoir alert for $1c2 = 450/10 = 45U.

Pod status response: basal running, reservoir < 50U

2018-07-08T16:48:07.091271 POD
1d SS 0PPPSNNN SSTTTRRR
1d 19 0149a800 000077be
  • 19 byte: bits abcdeeee
    • 0x10 - running basal
    • 0x09 - reservoir < 50U
  • 0PPPSNNN dword = $0149a800 = 0000|0001 0100 1001 1|010 1|000 0000 0000 0000
    • 0: 4 bits of 0's
    • PPP = $293: 13 bits total pulses = 659 x 0.05U/pulse = 32.95U
    • S = 5: 4 bits (message sequence number)
    • NNN = 0: 11 bits insulin pulses not delivered
  • SSTTTRRR dword = $000077be = 0|000 0000 0|000 0000 0111 01|11 1011 1110
    • 0 1 bit
    • 0 8 bits
    • TTT = $01d: 13 bits Pod time active in minutes = 29
    • RRR = $3be: 10 bits reservoir level = 958 pulses x 0.05U/pulse = 47.9U

Pod sends status: insulin stopped, reservoir < 50U

2018-07-08T16:50:28.710835 POD
1d SS 0PPPSNNN SSTTTTRR
1d 09 014a4800 00007fbd
  • 09 byte: bits abcdeeee
    • 0x00 - insulin stopped
    • 0x09 - reservoir < 50U
  • 0PPPSNNN dword = $014a4800 = 0000|0001 0100 1010 0|100 1|000 0000 0000
    • 0: 4 bits of 0's
    • PPP = $294: 13 bits total pulses = 660 x 0.05U/pulse = 33.0U
    • S = 9: 4 bits (message sequence number)
    • NNN = 0: 11 bits insulin pulses not delivered
  • SSTTTRRR dword = $00007fbd = 0|000 0000 0|000 0000 0111 11|11 1011 1101
    • 0 1 bit
    • 0 8 bits
    • TTT = $01f: 13 bits Pod time active in minutes = 31
    • RRR = $3bd: 10 bits Reservoir level = 957 pulses x 0.05U/pulse = 47.85U

Press home, then status:

2018-07-08T17:53:12.920468 PDM
Oe 01 TT
0e 01 01

The PDM requests a type 1 status and the Pod responses with a $02 status type 1 message:

2018-07-08T17:53:12.960572 POD
02 13 01 XXXX VVVV VVVV VVVV VVVV VVVV VVVV VVVV VVVV
02 13 01 0000 005b 0000 0000 0000 0000 002e 005b 0000

In this example, alerts #0, #5 and #6 are active. Alert #0 is used for Auto-Off while alerts #5 and #6 are used for suspend. The VVVV values indicate that alert #0 (Auto-Off) occurred at $5b (91) minutes, that alert #5 occurred at $2e (46) minutes, and that alert #6 occurred at $5b (91) minutes.

Auto-off alert programmed

2018-07-08T17:53:13.650285 PDM
19 LL NNNNNNNN IVXX YYYY 0J0K
19 0a 053d30ba 0a0f 003c 0202

The 0x2 bit (the 'c' bit) in 'V' indicates an Auto-off alert setup. The XX of ff is 15 minute limit for the alert beeping, the YYYY of 003c is a 60 minute alert, and the 0J0K value of 0202 is beep repeat pattern 02 (repeat every minute for 15 minutes) and beep type 02 (BipBeep BipBeep BipBeep BipBeep).

Pod alert: insulin stopped, reservoir < 50U, end of cancel insulin

2018-07-08T17:53:13.722859 POD
1d SS 0PPPSNNN SSTTTTRR
1d 09 014a5800 20017bbd
  • 09 byte: bits abcdeeee
    • 0x00 - insulin stopped
    • 0x09 - reservoir < 50U
  • 0PPPSNNN dword = $014a5800 = 0000|0001 0100 1010 0|101 1|000 0000 0000
    • 0: 4 bits of 0's
    • PPP = $294: 13 bits total pulses = 660 x 0.05U/pulse = 33.0U
    • S = $b: 4 bits (message sequence number)
    • NNN = 0: 11 bits insulin pulses not delivered
  • SSTTTRRR dword = $20017bbd = 0|010 0000 0|000 0001 0111 10|11 1011 1101
    • 0 1 bit
    • 010 0000 0 8 bits (Alarm to PDM: preemption): abcdefgh
      • b: Insulin Suspend Period Ended
    • 0 8 bits
    • TTT = $05e: 13 bits Pod time active in minutes = 94
    • RRR = $3bd: 10 bits reservoir level = 957 pulses x 0.05U/pulse = 47.85U

PDM requests alert status

2018-07-08T17:55:05.494130 PDM
Oe 01 TT
0e 01 01

2018-07-08T17:55:06.655186 ID1:1f051708 PTYPE:CON SEQ:31
02 13 01 XXXX VVVV VVVV VVVV VVVV VVVV VVVV VVVV VVVV
 CON:
02044e0121eac002d001312d00096000b71b00087001312d008380

Potential packet loss here as it is impossible to tell what this CON packet was continued from!?! A $0e command with TT of 01 should have generated a $02 command type 1 response (i.e., 02 13 01 XXXX VVVV...).

Pod also responds with basal running, reservoir < 50U, end of cancel insulin

2018-07-08T17:55:06.725730 ID1:1f051708 POD
1d SS 0PPPSNNN SSTTTTRR
1d 19 014a6800 200183bd
  • 19 byte: bits abcdeeee
    • 0x10 - running
    • 0x09 - reservoir < 50U
  • 0PPPSNNN dword = $014a6800 = 0000|0001 0100 1010 0|110 1|000 0000 0000
    • 0: 4 bits of 0's
    • PPP = $294: 13 bits total pulses = 660 x 0.05U/pulse = 33.0U
    • S = $d: 4 bits (message sequence number)
    • NNN = 0: 11 bits insulin pulses not delivered
  • SSTTTRRR dword = $200183bd = 0|010 0000 0|000 0001 1000 00|11 1011 1101
    • 0 1 bit
    • 010 0000 0 8 bits (Alarm to PDM: preemption): abcdefgh
      • b: Insulin Suspend Period Ended
    • TTT = $060: 13 bits Pod time active in minutes = 96
    • RRR = $3bd: 10 bits reservoir level = 957 pulses x 0.05U/pulse = 47.85U

Alert from PDM. Click OK to End of insulin suspend message.

After the user clicks on OK, the PDM sends $19 Configure Alerts command as follows:

2018-07-08T17:55:07.367103 PDM
19 LL NNNNNNNN IVXX YYYY 0J0K IVXX YYYY 0J0K
19 10 31701b92 5000 0000 0000 6000 0000 0000

The double $19 Configure Alerts command with 5000 0000 0000 6000 0000 0000 is used to clear alert #5 (Suspend in Progress advisory alert) and to clear alert #6 (Suspend Time Ended advisory alert).

Pod sends status of running normal basal, reservoir < 50U

2018-07-08T17:55:07.490656 PDM
1d SS 0PPPSNNN SSTTTTRR
1d 19 014a7800 000183bd
  • 19 byte: bits abcdeeee
    • 0x10 - running normal basal
    • 0x09 - reservoir < 50U
  • 0PPPSNNN dword = $014a7800 = 0000|0001 0100 1010 0|111 1|000 0000 0000
    • 0: 4 bits of 0's
    • PPP = $294: 13 bits total pulses = 660 x 0.05U/pulse = 33.0U
    • S = $f: 4 bits (message sequence number)
    • NNN = 0: 11 bits insulin pulses not delivered
  • SSTTTRRR dword = $000183bd = 0|000 0000 0|000 0001 1000 00|11 1011 1101
    • 0 1 bit
    • 0 8 bits
    • TTT = $060: 13 bits Pod time active in minutes = 96
    • RRR = $3bd: 10 bits reservoir level = 957 pulses x 0.05U/pulse = 47.85U

PDM requests status request again and Pod responds with $1D command

2018-07-08T17:55:56.805619 PDM
Oe 01 TT
0e 01 00

2018-07-08T17:55:56.931674 POD
1d SS 0PPPSNNN SSTTTTRR
1d 19 014a7800 000187bd
  • 19 byte: bits abcdeeee
    • 0x10 - normal basal
    • 0x09 - reservoir < 50U
  • 0PPPSNNN dword = $014a7800 = 0000|0001 0100 1010 0|111 1|000 0000 0000
    • 0: 4 bits of 0's
    • PPP = $294: 13 bits total pulses = 660 x 0.05U/pulse = 33.0U
    • S = $f: 4 bits (message sequence number)
    • NNN = 0: 11 bits insulin pulses not delivered
  • SSTTTRRR dword = $000187bd = 0|000 0000 0|000 0001 1000 01|11 1011 1101
    • 0 1 bit
    • 0 8 bits
    • TTT = $061: 13 bits Pod time active in minutes = 97
    • RRR = $3bd: 10 bits reservoir level = 957 pulses x 0.05U/pulse = 47.85U

Raw capture:

2018-07-08T16:47:45.752916 ID1:1f051708 PTYPE:ACK SEQ:08 ID2:1f051708 CRC:5c
2018-07-08T16:48:07.021493 ID1:1f051708 PTYPE:PDM SEQ:09 ID2:1f051708 B9:14 BLEN:12 BODY:190a8a57736b4c0001c2010203bb CRC:6c
2018-07-08T16:48:07.091271 ID1:1f051708 PTYPE:POD SEQ:10 ID2:1f051708 B9:18 BLEN:10 BODY:1d190149a800000077be018f CRC:6d
2018-07-08T16:48:07.091939 ID1:1f051708 PTYPE:ACK SEQ:11 ID2:1f051708 CRC:fa
2018-07-08T16:50:11.158664 ID1:1f051708 PTYPE:POD SEQ:13 ID2:1f051708 B9:20 BLEN:10 BODY:1d19014a380000007fbd009f CRC:99
2018-07-08T16:50:11.159070 ID1:1f051708 PTYPE:ACK SEQ:14 ID2:1f051708 CRC:17
2018-07-08T16:50:28.383403 ID1:1f051708 PTYPE:ACK SEQ:16 ID2:1f051708 CRC:77
2018-07-08T16:50:28.586811 ID1:1f051708 PTYPE:POD SEQ:18 ID2:1f051708 B9:28 BLEN:10 BODY:1d09014a480000007fbd8063 CRC:57
2018-07-08T16:50:28.710835 ID1:1f051708 PTYPE:POD SEQ:18 ID2:1f051708 B9:28 BLEN:10 BODY:1d09014a480000007fbd8063 CRC:57
2018-07-08T16:50:28.746944 ID1:1f051708 PTYPE:ACK SEQ:19 ID2:1f051708 CRC:d1
2018-07-08T17:53:12.920468 ID1:1f051708 PTYPE:PDM SEQ:20 ID2:1f051708 B9:2c BLEN:3 BODY:0e01018351 CRC:fa
2018-07-08T17:53:12.960572 ID1:1f051708 PTYPE:POD SEQ:21 ID2:1f051708 B9:30 BLEN:21 BODY:0213010000005b0000000000000000002e005b0000037d CRC:60
2018-07-08T17:53:12.994348 ID1:1f051708 PTYPE:ACK SEQ:22 ID2:1f051708 CRC:3c
2018-07-08T17:53:13.329095 ID1:1f051708 PTYPE:PDM SEQ:23 ID2:1f051708 B9:2c BLEN:12 BODY:190a053d30ba0a0f003c02020279 CRC:60
2018-07-08T17:53:13.650285 ID1:1f051708 PTYPE:PDM SEQ:23 ID2:1f051708 B9:2c BLEN:12 BODY:190a053d30ba0a0f003c02020279 CRC:60
2018-07-08T17:53:13.722859 ID1:1f051708 PTYPE:POD SEQ:24 ID2:1f051708 B9:30 BLEN:10 BODY:1d09014a580020017bbd0184 CRC:37
2018-07-08T17:53:13.731772 ID1:1f051708 PTYPE:ACK SEQ:25 ID2:1f051708 CRC:0c
2018-07-08T17:55:05.494130 ID1:1f051708 PTYPE:PDM SEQ:26 ID2:1f051708 B9:34 BLEN:3 BODY:0e01010377 CRC:a8
2018-07-08T17:55:05.621495 ID1:1f051708 PTYPE:ACK SEQ:28 ID2:1f051708 CRC:e1
2018-07-08T17:55:06.479759 ID1:1f051708 PTYPE:ACK SEQ:30 ID2:1f051708 CRC:25
2018-07-08T17:55:06.655186 ID1:1f051708 PTYPE:CON SEQ:31 CON:02044e0121eac002d001312d00096000b71b00087001312d008380 CRC:95
2018-07-08T17:55:06.725730 ID1:1f051708 PTYPE:POD SEQ:00 ID2:1f051708 B9:38 BLEN:10 BODY:1d19014a6800200183bd8091 CRC:3e
2018-07-08T17:55:06.846010 ID1:1f051708 PTYPE:POD SEQ:00 ID2:1f051708 B9:38 BLEN:10 BODY:1d19014a6800200183bd8091 CRC:3e
2018-07-08T17:55:07.246074 ID1:1f051708 PTYPE:POD SEQ:00 ID2:1f051708 B9:38 BLEN:10 BODY:1d19014a6800200183bd8091 CRC:3e
2018-07-08T17:55:07.367103 ID1:1f051708 PTYPE:PDM SEQ:02 ID2:1f051708 B9:3c BLEN:18 BODY:191031701b92500000000000600000000000836c CRC:fe
2018-07-08T17:55:07.490656 ID1:1f051708 PTYPE:POD SEQ:03 ID2:1f051708 B9:00 BLEN:10 BODY:1d19014a7800000183bd0037 CRC:31
2018-07-08T17:55:07.491017 ID1:1f051708 PTYPE:ACK SEQ:04 ID2:1f051708 CRC:ca
2018-07-08T17:55:56.805619 ID1:1f051708 PTYPE:PDM SEQ:05 ID2:1f051708 B9:04 BLEN:3 BODY:0e010003c8 CRC:3c
2018-07-08T17:55:56.931674 ID1:1f051708 PTYPE:POD SEQ:06 ID2:1f051708 B9:08 BLEN:10 BODY:1d19014a7800000187bd83b4 CRC:da
2018-07-08T17:55:56.967640 ID1:1f051708 PTYPE:ACK SEQ:07 ID2:1f051708 CRC:6c
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