Mixing Revov R100 new and old models

[jpmeijers]

Revov has updated the BMS of the R100 battery. An upgrade of my system created a mix of BMS versions. This causes this plugin to sometimes read some fields incorrectly.

I've tried the pace-bms-dev version with different values for the force-offset field. This seems to fix some fields, but breaks other. And the broken fields seem to change depending on charging/discharging state.

Is this maybe because the protocol versions are being mixed, and this plugin only support one at a time? Any ideas how I can debug this?

Log output using default offset 0

Hello BMS Pace Starting up... Loading config.yaml Connection Type: Serial MQTT connected with result code 0 Connecting to BMS... trying to connect /dev/ttyRS232 BMS serial connected -> Outgoing Data: b'~250146C10000FD9A\r' <- Incoming data: b'~25014600602850313653313030412D33313136372D312E313341F57E\r' SOI: 0x7e VER: b'25' ADR: b'01' CID1 (Type): b'46' RTN: b'00' LENGTH: b'6028' - LCHKSUM: 54 - LENID: b'028' - LENID (int): 40 INFO: b'50313653313030412D33313136372D312E313341' CHKSUM: b'F57E' Calc CHKSUM: F57E BMS Version: P16S100A-31167-1.13A -> Outgoing Data: b'~250146C20000FD99\r' <- Incoming data: b'~25014600B0503331313637313435323230303234375A2020202045535950503032343437523130302D3432300000EDA0\r' SOI: 0x7e VER: b'25' ADR: b'01' CID1 (Type): b'46' RTN: b'00' LENGTH: b'B050' - LCHKSUM: 66 - LENID: b'050' - LENID (int): 80 INFO: b'3331313637313435323230303234375A2020202045535950503032343437523130302D3432300000' CHKSUM: b'EDA0' Calc CHKSUM: EDA0 BMS Serial Number: 311671452200247 Pack Serial Number: ESYPP02447R100 -> Outgoing Data: b'~25014642E002FFFD05\r' <- Incoming data: b'~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\r' SOI: 0x7e VER: b'25' ADR: b'01' CID1 (Type): b'46' RTN: b'00' LENGTH: b'A402' - LCHKSUM: 65 - LENID: b'402' - LENID (int): 1026 INFO: b'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' CHKSUM: b'1960' Calc CHKSUM: 1960 Packs: 7 Pack 1, Total cells: 16 Pack 1, V Cell1: 3313 mV Pack 1, V Cell2: 3313 mV Pack 1, V Cell3: 3313 mV Pack 1, V Cell4: 3313 mV Pack 1, V Cell5: 3314 mV Pack 1, V Cell6: 3313 mV Pack 1, V Cell7: 3313 mV Pack 1, V Cell8: 3314 mV Pack 1, V Cell9: 3314 mV Pack 1, V Cell10: 3314 mV Pack 1, V Cell11: 3313 mV Pack 1, V Cell12: 3312 mV Pack 1, V Cell13: 3313 mV Pack 1, V Cell14: 3313 mV Pack 1, V Cell15: 3314 mV Pack 1, V Cell16: 3313 mV Pack 1, Cell Max Diff Volt Calc: 2 mV Pack 1, Total temperature sensors: 6 Pack 1, Temp1: 37.6 ℃ Pack 1, Temp2: 37.1 ℃ Pack 1, Temp3: 36.4 ℃ Pack 1, Temp4: 36.5 ℃ Pack 1, Temp5: 39.2 ℃ Pack 1, Temp6: 38.5 ℃ Pack 1, I Pack: -8.22 A Pack 1, V Pack: 52.969 V Pack 1, I Remaining Capacity: 90070 mAh Pack 1, I Full Capacity: 100000 mAh Pack 1, SOC: 90.07 % Pack 1, Cycles: 47 Pack 1, Design Capacity: 100000 mAh Pack 1, SOH: 100.0 % Pack 2, Total cells: 16 Pack 2, V Cell1: 10000 mV Pack 2, V Cell2: 10000 mV Pack 2, V Cell3: 10000 mV Pack 2, V Cell4: 25807 mV Pack 2, V Cell5: 24064 mV Pack 2, V Cell6: 16 mV Pack 2, V Cell7: 3313 mV Pack 2, V Cell8: 3314 mV Pack 2, V Cell9: 3313 mV Pack 2, V Cell10: 3313 mV Pack 2, V Cell11: 3314 mV Pack 2, V Cell12: 3313 mV Pack 2, V Cell13: 3313 mV Pack 2, V Cell14: 3314 mV Pack 2, V Cell15: 3313 mV Pack 2, V Cell16: 3313 mV Pack 2, Cell Max Diff Volt Calc: 25791 mV Pack 2, Total temperature sensors: 12 Pack 2, Temp1: 5923.4 ℃ Pack 2, Temp2: 5923.4 ℃ Pack 2, Temp3: 5923.4 ℃ Pack 2, Temp4: 5897.8 ℃ Pack 2, Temp5: 5897.8 ℃ Pack 2, Temp6: 5897.2 ℃ Pack 2, Temp7: 37.2 ℃ Pack 2, Temp8: 36.7 ℃ Pack 2, Temp9: 36.0 ℃ Pack 2, Temp10: 36.2 ℃ Pack 2, Temp11: 39.0 ℃ Pack 2, Temp12: 37.6 ℃ Pack 2, I Pack: -7.12 A Pack 2, V Pack: 52.992 V Pack 2, I Remaining Capacity: 90650 mAh Pack 2, I Full Capacity: 100000 mAh Pack 2, SOC: 90.65 % Pack 2, Cycles: 45 Pack 2, Design Capacity: 100000 mAh Pack 2, SOH: 100.0 % Pack 3, Total cells: 16 Pack 3, V Cell1: 10000 mV Pack 3, V Cell2: 10000 mV Pack 3, V Cell3: 10000 mV Pack 3, V Cell4: 25807 mV Pack 3, V Cell5: 61184 mV Pack 3, V Cell6: 16 mV Pack 3, V Cell7: 3307 mV Pack 3, V Cell8: 3309 mV Pack 3, V Cell9: 3308 mV Pack 3, V Cell10: 3307 mV Pack 3, V Cell11: 3308 mV Pack 3, V Cell12: 3309 mV Pack 3, V Cell13: 3307 mV Pack 3, V Cell14: 3308 mV Pack 3, V Cell15: 3308 mV Pack 3, V Cell16: 3308 mV Pack 3, Cell Max Diff Volt Calc: 61168 mV Pack 3, Total temperature sensors: 12 Pack 3, Temp1: 5769.8 ℃ Pack 3, Temp2: 5795.4 ℃ Pack 3, Temp3: 5769.8 ℃ Pack 3, Temp4: 5769.8 ℃ Pack 3, Temp5: 5744.2 ℃ Pack 3, Temp6: 5794.8 ℃ Pack 3, Temp7: 36.6 ℃ Pack 3, Temp8: 36.6 ℃ Pack 3, Temp9: 35.0 ℃ Pack 3, Temp10: 35.5 ℃ Pack 3, Temp11: 38.1 ℃ Pack 3, Temp12: 38.7 ℃ Pack 3, I Pack: -6.63 A Pack 3, V Pack: 52.991 V Pack 3, I Remaining Capacity: 93290 mAh Pack 3, I Full Capacity: 100310 mAh Pack 3, SOC: 93.0 % Pack 3, Cycles: 105 Pack 3, Design Capacity: 100000 mAh Pack 3, SOH: 100.31 % Pack 4, Total cells: 16 Pack 4, V Cell1: 10000 mV Pack 4, V Cell2: 10000 mV Pack 4, V Cell3: 10000 mV Pack 4, V Cell4: 25600 mV Pack 4, V Cell5: 0 mV Pack 4, V Cell6: 16 mV Pack 4, V Cell7: 3314 mV Pack 4, V Cell8: 3314 mV Pack 4, V Cell9: 3314 mV Pack 4, V Cell10: 3314 mV Pack 4, V Cell11: 3314 mV Pack 4, V Cell12: 3314 mV Pack 4, V Cell13: 3314 mV Pack 4, V Cell14: 3314 mV Pack 4, V Cell15: 3314 mV Pack 4, V Cell16: 3314 mV Pack 4, Cell Max Diff Volt Calc: 25600 mV Pack 4, Total temperature sensors: 12 Pack 4, Temp1: 5923.4 ℃ Pack 4, Temp2: 5897.8 ℃ Pack 4, Temp3: 5923.4 ℃ Pack 4, Temp4: 5923.4 ℃ Pack 4, Temp5: 5923.4 ℃ Pack 4, Temp6: 5922.8 ℃ Pack 4, Temp7: 34.2 ℃ Pack 4, Temp8: 34.1 ℃ Pack 4, Temp9: 33.7 ℃ Pack 4, Temp10: 34.0 ℃ Pack 4, Temp11: 37.7 ℃ Pack 4, Temp12: 39.8 ℃ Pack 4, I Pack: -5.96 A Pack 4, V Pack: 53.07 V Pack 4, I Remaining Capacity: 94980 mAh Pack 4, I Full Capacity: 100300 mAh Pack 4, SOC: 94.7 % Pack 4, Cycles: 524 Pack 4, Design Capacity: 100000 mAh Pack 4, SOH: 100.3 % Pack 5, Total cells: 16 Pack 5, V Cell1: 10000 mV Pack 5, V Cell2: 10000 mV Pack 5, V Cell3: 10000 mV Pack 5, V Cell4: 25600 mV Pack 5, V Cell5: 0 mV Pack 5, V Cell6: 16 mV Pack 5, V Cell7: 3313 mV Pack 5, V Cell8: 3313 mV Pack 5, V Cell9: 3313 mV Pack 5, V Cell10: 3313 mV Pack 5, V Cell11: 3313 mV Pack 5, V Cell12: 3313 mV Pack 5, V Cell13: 3313 mV Pack 5, V Cell14: 3313 mV Pack 5, V Cell15: 3313 mV Pack 5, V Cell16: 3313 mV Pack 5, Cell Max Diff Volt Calc: 25600 mV Pack 5, Total temperature sensors: 12 Pack 5, Temp1: 5897.8 ℃ Pack 5, Temp2: 5897.8 ℃ Pack 5, Temp3: 5872.2 ℃ Pack 5, Temp4: 5872.2 ℃ Pack 5, Temp5: 5897.8 ℃ Pack 5, Temp6: 5897.2 ℃ Pack 5, Temp7: 32.6 ℃ Pack 5, Temp8: 32.8 ℃ Pack 5, Temp9: 32.7 ℃ Pack 5, Temp10: 32.5 ℃ Pack 5, Temp11: 35.6 ℃ Pack 5, Temp12: 37.1 ℃ Pack 5, I Pack: -5.78 A Pack 5, V Pack: 53.006 V Pack 5, I Remaining Capacity: 99920 mAh Pack 5, I Full Capacity: 105050 mAh Pack 5, SOC: 95.12 % Pack 5, Cycles: 521 Pack 5, Design Capacity: 100000 mAh Pack 5, SOH: 105.05 % Pack 6, Total cells: 16 Pack 6, V Cell1: 10000 mV Pack 6, V Cell2: 10000 mV Pack 6, V Cell3: 10000 mV Pack 6, V Cell4: 25600 mV Pack 6, V Cell5: 0 mV Pack 6, V Cell6: 16 mV Pack 6, V Cell7: 3316 mV Pack 6, V Cell8: 3316 mV Pack 6, V Cell9: 3315 mV Pack 6, V Cell10: 3316 mV Pack 6, V Cell11: 3316 mV Pack 6, V Cell12: 3316 mV Pack 6, V Cell13: 3316 mV Pack 6, V Cell14: 3316 mV Pack 6, V Cell15: 3316 mV Pack 6, V Cell16: 3316 mV Pack 6, Cell Max Diff Volt Calc: 25600 mV Pack 6, Total temperature sensors: 12 Pack 6, Temp1: 5974.6 ℃ Pack 6, Temp2: 5974.6 ℃ Pack 6, Temp3: 5974.6 ℃ Pack 6, Temp4: 5974.6 ℃ Pack 6, Temp5: 5949.0 ℃ Pack 6, Temp6: 5974.0 ℃ Pack 6, Temp7: 31.5 ℃ Pack 6, Temp8: 31.6 ℃ Pack 6, Temp9: 31.9 ℃ Pack 6, Temp10: 31.7 ℃ Pack 6, Temp11: 34.1 ℃ Pack 6, Temp12: 36.0 ℃ Pack 6, I Pack: -5.75 A Pack 6, V Pack: 53.054 V Pack 6, I Remaining Capacity: 94840 mAh Pack 6, I Full Capacity: 99800 mAh Pack 6, SOC: 95.03 % Pack 6, Cycles: 508 Pack 6, Design Capacity: 100000 mAh Pack 6, SOH: 99.8 % Pack 7, Total cells: 16 Pack 7, V Cell1: 10000 mV Pack 7, V Cell2: 10000 mV Pack 7, V Cell3: 10000 mV Pack 7, V Cell4: 25600 mV Pack 7, V Cell5: 0 mV Pack 7, V Cell6: 16 mV Pack 7, V Cell7: 3311 mV Pack 7, V Cell8: 3312 mV Pack 7, V Cell9: 3310 mV Pack 7, V Cell10: 3311 mV Pack 7, V Cell11: 3311 mV Pack 7, V Cell12: 3311 mV Pack 7, V Cell13: 3311 mV Pack 7, V Cell14: 3311 mV Pack 7, V Cell15: 3311 mV Pack 7, V Cell16: 3311 mV Pack 7, Cell Max Diff Volt Calc: 25600 mV Pack 7, Total temperature sensors: 12 Pack 7, Temp1: 5846.6 ℃ Pack 7, Temp2: 5846.6 ℃ Pack 7, Temp3: 5846.6 ℃ Pack 7, Temp4: 5846.6 ℃ Pack 7, Temp5: 5821.0 ℃ Pack 7, Temp6: 5820.4 ℃ Pack 7, Temp7: 31.2 ℃ Pack 7, Temp8: 31.4 ℃ Pack 7, Temp9: 31.6 ℃ Pack 7, Temp10: 31.3 ℃ Pack 7, Temp11: 33.1 ℃ Pack 7, Temp12: 35.3 ℃ Pack 7, I Pack: -5.81 A Pack 7, V Pack: 53.037 V Pack 7, I Remaining Capacity: 94420 mAh Pack 7, I Full Capacity: 99370 mAh Pack 7, SOC: 95.02 % Pack 7, Cycles: 505 Pack 7, Design Capacity: 100000 mAh Pack 7, SOH: 99.37 % Script running.... -> Outgoing Data: b'~250146A60000FD97\r' <- Incoming data: b'~25014600400C232E27102710FB27\r' SOI: 0x7e VER: b'25' ADR: b'01' CID1 (Type): b'46' RTN: b'00' LENGTH: b'400C' - LCHKSUM: 52 - LENID: b'00C' - LENID (int): 12 INFO: b'232E27102710' CHKSUM: b'FB27' Calc CHKSUM: FB27 Pack Remaining Capacity: 90060 mAh Pack Full Capacity: 100000 mAh Pack Design Capacity: 100000 mAh Pack SOC: 90.06 % Pack SOH: 100.0 % -> Outgoing Data: b'~25014644E002FFFD03\r' <- Incoming data: b'~25014600420A000710000000000000000000000000000000000600000000000000000000000E0000000000000010000000000000000000000000000000000600000000000000000000000E0000000000000010000000000000000000000000000000000600000000000000000000000E0000000000000010000000000000000000000000000000000600000000000000000000000E1000000000000010000000000000000000000000000000000600000000000000000000000E1000000000000010000000000000000000000000000000000600000000000000000000000E1000000000000010000000000000000000000000000000000600000000000000000000000E100000000000009AE8\r' SOI: 0x7e VER: b'25' ADR: b'01' CID1 (Type): b'46' RTN: b'00' LENGTH: b'420A' - LCHKSUM: 52 - LENID: b'20A' - LENID (int): 522 INFO: b'000710000000000000000000000000000000000600000000000000000000000E0000000000000010000000000000000000000000000000000600000000000000000000000E0000000000000010000000000000000000000000000000000600000000000000000000000E0000000000000010000000000000000000000000000000000600000000000000000000000E1000000000000010000000000000000000000000000000000600000000000000000000000E1000000000000010000000000000000000000000000000000600000000000000000000000E1000000000000010000000000000000000000000000000000600000000000000000000000E10000000000000' CHKSUM: b'9AE8' Calc CHKSUM: 9AE8 Packs for warnings: 7 Pack 1, warnings: Pack 1, balancing1: 00000000 Pack 1, balancing2: 00000000 Pack 2, warnings: Pack 2, balancing1: 00000000 Pack 2, balancing2: 00000000 Pack 3, warnings: Pack 3, balancing1: 00000000 Pack 3, balancing2: 00000000 Pack 4, warnings: Control State: Current limit function disabled Pack 4, balancing1: 00000000 Pack 4, balancing2: 00000000 Pack 5, warnings: Control State: Current limit function disabled Pack 5, balancing1: 00000000 Pack 5, balancing2: 00000000 Pack 6, warnings: Control State: Current limit function disabled Pack 6, balancing1: 00000000 Pack 6, balancing2: 00000000 Pack 7, warnings: Control State: Current limit function disabled Pack 7, balancing1: 00000000 Pack 7, balancing2: 00000000 Publishing HA Discovery topic... -> Outgoing Data: b'~25014642E002FFFD05\r' <- Incoming data: b'~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\r' SOI: 0x7e VER: b'25' ADR: b'01' CID1 (Type): b'46' RTN: b'00' LENGTH: b'A402' - LCHKSUM: 65 - LENID: b'402' - LENID (int): 1026 INFO: b'0007100CF10CF10CF10CF10CF10CF10CF10CF10CF20CF10CF10CF00CF10CF10CF10CF0060C220C1D0C160C170C320C2BFCB6CEE4232D092710002F27105A271027102710271064CF5E0000100CF10CF10CF10CF10CF20CF00CF10CF20CF10CF10CF20CF20CF20CF10CF10CF1060C1E0C190C120C140C300C22FD1BCEFE2367092710002D27105A271027102710271064CFEF0000100CEB0CED0CEC0CEB0CEC0CED0CEB0CEC0CEC0CEB0CEC0CED0CEC0CEC0CEB0CED060C180C180C080C0D0C270C2DFD36CEFE246F02272F006927105C27102710271027106400000000100CF10CF20CF20CF20CF20CF20CF20CF20CF20CF20CF20CF10CF20CF10CF20CF1060C000BFF0BFB0BFE0C230C38FD8ACF4B251802272E020C27105F27102710271027106400000000100CF10CF10CF10CF10CF10CF10CF00CF10CF10CF10CF10CF10CF00CF00CF10CF1060BF00BF20BF10BEF0C0E0C1DFD96CF0D2706022909020927105F27102710271027106400000000100CF40CF40CF30CF40CF40CF40CF40CF40CF40CF40CF40CF40CF40CF40CF30CF4060BE50BE60BE90BE70BFF0C12FD9CCF3E250A0226FC01FC27105F27102710271027106400000000100CEF0CEF0CEE0CEF0CEF0CEF0CEF0CEF0CEF0CEF0CEF0CEF0CEF0CEF0CEE0CEE060BE20BE40BE60BE30BF50C0BFD98CF2C24E00226D101F927105F27102710271027106400000000' CHKSUM: b'1962' Calc CHKSUM: 1962 -> Outgoing Data: b'~250146A60000FD97\r' <- Incoming data: b'~25014600400C232C27102710FB29\r' SOI: 0x7e VER: b'25' ADR: b'01' CID1 (Type): b'46' RTN: b'00' LENGTH: b'400C' - LCHKSUM: 52 - LENID: b'00C' - LENID (int): 12 INFO: b'232C27102710' CHKSUM: b'FB29' Calc CHKSUM: FB29 -> Outgoing Data: b'~25014644E002FFFD03\r' <- Incoming data: b'~25014600420A000710000000000000000000000000000000000600000000000000000000000E0000000000000010000000000000000000000000000000000600000000000000000000000E0000000000000010000000000000000000000000000000000600000000000000000000000E0000000000000010000000000000000000000000000000000600000000000000000000000E1000000000000010000000000000000000000000000000000600000000000000000000000E1000000000000010000000000000000000000000000000000600000000000000000000000E1000000000000010000000000000000000000000000000000600000000000000000000000E100000000000009AE8\r' SOI: 0x7e VER: b'25' ADR: b'01' CID1 (Type): b'46' RTN: b'00' LENGTH: b'420A' - LCHKSUM: 52 - LENID: b'20A' - LENID (int): 522 INFO: b'000710000000000000000000000000000000000600000000000000000000000E0000000000000010000000000000000000000000000000000600000000000000000000000E0000000000000010000000000000000000000000000000000600000000000000000000000E0000000000000010000000000000000000000000000000000600000000000000000000000E1000000000000010000000000000000000000000000000000600000000000000000000000E1000000000000010000000000000000000000000000000000600000000000000000000000E1000000000000010000000000000000000000000000000000600000000000000000000000E10000000000000' CHKSUM: b'9AE8' Calc CHKSUM: 9AE8 -> Outgoing Data: b'~25014642E002FFFD05\r' <- Incoming data: b'~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\r' SOI: 0x7e VER: b'25' ADR: b'01' CID1 (Type): b'46' RTN: b'00' LENGTH: b'A402' - LCHKSUM: 65 - LENID: b'402' - LENID (int): 1026 INFO: b'0007100CF10CF00CF10CF10CF10CF10CF10CF10CF20CF10CF10CF00CF10CF10CF10CF0060C220C1D0C160C170C320C2BFCCCCEE3232A092710002F27105A271027102710271064CF5E0000100CF10CF10CF10CF10CF20CF00CF10CF20CF10CF10CF10CF10CF20CF00CF10CF1060C1E0C190C120C140C300C22FD0ECEFB2365092710002D27105A271027102710271064CFC50000100CEB0CED0CEC0CEB0CEC0CEC0CEB0CEC0CEC0CEB0CEC0CED0CEB0CEB0CEB0CED060C180C180C080C0D0C270C2DFD38CEFB246C02272F006927105C27102710271027106400000000100CF10CF20CF20CF20CF20CF20CF20CF20CF10CF20CF20CF10CF20CF10CF20CF1060C000BFF0BFB0BFE0C230C38FD91CF4A251602272E020C27105F27102710271027106400000000100CF10CF10CF10CF10CF10CF10CF00CF10CF10CF10CF10CF10CF00CF00CF10CF1060BF00BF20BF10BEF0C0E0C1DFD9BCF0D2704022909020927105F27102710271027106400000000100CF30CF40CF30CF40CF40CF30CF30CF40CF40CF40CF40CF40CF40CF40CF30CF4060BE50BE60BE90BE70BFF0C12FD9CCF3B25080226FC01FC27105F27102710271027106400000000100CEF0CEF0CEE0CEF0CEF0CEF0CEF0CEF0CEF0CEF0CEF0CEF0CEF0CEF0CEE0CEE060BE20BE40BE60BE30BF50C0BFD9BCF2C24DE0226D101F927105F27102710271027106400000000' CHKSUM: b'1973' Calc CHKSUM: 1973 -> Outgoing Data: b'~250146A60000FD97\r' <- Incoming data: b'~25014600400C232927102710FB33\r' SOI: 0x7e VER: b'25' ADR: b'01' CID1 (Type): b'46' RTN: b'00' LENGTH: b'400C' - LCHKSUM: 52 - LENID: b'00C' - LENID (int): 12 INFO: b'232927102710' CHKSUM: b'FB33' Calc CHKSUM: FB33 -> Outgoing Data: b'~25014644E002FFFD03\r' <- Incoming data: b'~25014600420A000710000000000000000000000000000000000600000000000000000000000E0000000000000010000000000000000000000000000000000600000000000000000000000E0000000000000010000000000000000000000000000000000600000000000000000000000E0000000000000010000000000000000000000000000000000600000000000000000000000E1000000000000010000000000000000000000000000000000600000000000000000000000E1000000000000010000000000000000000000000000000000600000000000000000000000E1000000000000010000000000000000000000000000000000600000000000000000000000E100000000000009AE8\r' SOI: 0x7e VER: b'25' ADR: b'01' CID1 (Type): b'46' RTN: b'00' LENGTH: b'420A' - LCHKSUM: 52 - LENID: b'20A' - LENID (int): 522 INFO: b'000710000000000000000000000000000000000600000000000000000000000E0000000000000010000000000000000000000000000000000600000000000000000000000E0000000000000010000000000000000000000000000000000600000000000000000000000E0000000000000010000000000000000000000000000000000600000000000000000000000E1000000000000010000000000000000000000000000000000600000000000000000000000E1000000000000010000000000000000000000000000000000600000000000000000000000E1000000000000010000000000000000000000000000000000600000000000000000000000E10000000000000' CHKSUM: b'9AE8' Calc CHKSUM: 9AE8 -> Outgoing Data: b'~25014642E002FFFD05\r' <- Incoming data: b'~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r' SOI: 0x7e VER: b'25' ADR: b'01' CID1 (Type): b'46' RTN: b'00' LENGTH: b'A402' - LCHKSUM: 65 - LENID: b'402' - LENID (int): 1026 INFO: b'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' CHKSUM: b'19E5' Calc CHKSUM: 19E5 -> Outgoing Data: b'~250146A60000FD97\r' <- Incoming data: b'~25014600400C232727102710FB35\r' SOI: 0x7e VER: b'25' ADR: b'01' CID1 (Type): b'46' RTN: b'00' LENGTH: b'400C' - LCHKSUM: 52 - LENID: b'00C' - LENID (int): 12 INFO: b'232727102710' CHKSUM: b'FB35' Calc CHKSUM: FB35 -> Outgoing Data: b'~25014644E002FFFD03\r' <- Incoming data: b'~25014600420A000710000000000000000000000000000000000600000000000000000000000E0000000000000010000000000000000000000000000000000600000000000000000000000E0000000000000010000000000000000000000000000000000600000000000000000000000E0000000000000010000000000000000000000000000000000600000000000000000000000E1000000000000010000000000000000000000000000000000600000000000000000000000E1000000000000010000000000000000000000000000000000600000000000000000000000E1000000000000010000000000000000000000000000000000600000000000000000000000E100000000000009AE8\r' SOI: 0x7e VER: b'25' ADR: b'01' CID1 (Type): b'46' RTN: b'00' LENGTH: b'420A' - LCHKSUM: 52 - LENID: b'20A' - LENID (int): 522 INFO: b'000710000000000000000000000000000000000600000000000000000000000E0000000000000010000000000000000000000000000000000600000000000000000000000E0000000000000010000000000000000000000000000000000600000000000000000000000E0000000000000010000000000000000000000000000000000600000000000000000000000E1000000000000010000000000000000000000000000000000600000000000000000000000E1000000000000010000000000000000000000000000000000600000000000000000000000E1000000000000010000000000000000000000000000000000600000000000000000000000E10000000000000' CHKSUM: b'9AE8' Calc CHKSUM: 9AE8 -> Outgoing Data: b'~25014642E002FFFD05\r'

[jpmeijers]

I gave this problem to sonnet 4.6 with screenshots and logs of the service running. After thinking about it for a rather long time, it ended up with this:

---

Root Cause: False Pack Sync Match in force_pack_offset + while loop

After parsing each pack's data, the code skips force_pack_offset=18 chars, then runs a while loop scanning for the next pack's cell count value (0x10 = 16).

The 28-char padding between packs has this structure:

Offset	Value	Notes
0–1	62/63	status
2–17	2710 × 4	limits (contain many 10 values!)
18–19	64	always
20–23	XXYY	variable — non-zero for new-gen packs 1-2 (e.g. D5B2, DB10), always 0000 for old-gen packs 3-7
24–27	0000	reserved

With force_pack_offset=18, the scanner starts at offset 18 (64), then scans XX YY 00 00. When YY happens to be 10 (e.g. the variable capacity value is DB10), the scanner falsely stops inside XXYY instead of at the real cells count. This shifts the byte index 4 chars too early, corrupting the next pack's cell voltages, temperature count, and all derived values (SOC, current, etc.).

Why only pack 3? The XXYY value at the pack 2→3 boundary is non-zero (pack 2 is a new-gen battery). The other boundaries (pack 3-7, old-gen) always have XXYY=0000, so YY is never 10.

Why intermittent? The value XXYY tracks battery capacity — it drifts continuously. Every ~256 units (~2.56 Ah), its low byte cycles through 10 again, causing a brief window of bad readings.

The fix: Change force_pack_offset from 18 to 24 in the running config. This skips past the variable XXYY field entirely, landing safely in 0000 before the real cells count.

Fix applied. Change force_pack_offset: 18 → 24 in bmspace-running/pace-bms-dev/config.yaml and restart the container.

Summary:

• Only new-gen packs 1 & 2 have a non-zero 4-byte field in their inter-pack padding. Old-gen packs 3–7 have 0000 there — safe.
• When that field's low byte equals 0x10 (= 16 = cells count), the scanner stops 4 chars too early at the pack 2→3 boundary.
• This misaligns ALL of pack 3–7's data: wrong cell voltages, temperature count reads as 42–64 instead of 6, causing the code to consume ~168 bytes as "temperatures" and then compute wildly wrong SOC/current.
• The fix (offset 24) skips past the variable field, landing safely in the guaranteed 0000 zone before the real cells count.

The CPU-load correlation makes sense: under load the Pi polls more slowly, so the capacity values change more between reads, increasing the frequency of hitting the 0x??10 boundary.