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Merged
andig merged 29 commits into from
Jul 19, 2026
+149 −29
Merged

Huawei: add HoldCharge #30598

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92fd1ba
Huawei: add nocharge/holdcharge
CiNcH83 Jun 7, 2026
027e72e
naming
CiNcH83 Jun 7, 2026
6f7f639
Merge branch 'master' into huawei_nocharge
CiNcH83 Jun 7, 2026
7ff6897
also set max. charge power in force-charge mode
CiNcH83 Jun 7, 2026
869bdd9
Merge branch 'master' into huawei_nocharge
CiNcH83 Jun 18, 2026
3ca64e0
remove forceaccharging block in holdcharge
CiNcH83 Jun 18, 2026
6d99426
clamp all charge/discharge register writes
CiNcH83 Jun 18, 2026
a9d8a91
Merge branch 'master' into huawei_nocharge
CiNcH83 Jun 18, 2026
1d5a14e
Merge branch 'master' into huawei_nocharge
CiNcH83 Jun 18, 2026
2005d1c
Merge branch 'master' into huawei_nocharge
CiNcH83 Jun 20, 2026
e94672f
Merge branch 'master' into huawei_nocharge
CiNcH83 Jun 22, 2026
2de61ae
Merge branch 'master' into huawei_nocharge
CiNcH83 Jun 22, 2026
b90437c
Merge branch 'master' into huawei_nocharge
CiNcH83 Jun 29, 2026
af7728d
Update templates/definition/meter/huawei-sun2000-hybrid.yaml
CiNcH83 Jul 4, 2026
49210b8
implement review
CiNcH83 Jul 4, 2026
0a388b5
Huawei Sun2000 hybrid: explain why only charge needs periodic watchdo…
andig Jul 4, 2026
d32e9e8
add comment regarding charge watchdog
CiNcH83 Jul 4, 2026
535ef22
Merge branch 'master' into huawei_nocharge
CiNcH83 Jul 6, 2026
756a14d
Huawei: fix watchdog re-asserting 47100 after mode switch clears it
andig Jul 6, 2026
1872726
Huawei: simplify watchdog switch using default fallback
andig Jul 6, 2026
a8ed20a
Merge branch 'master' into huawei_nocharge
CiNcH83 Jul 7, 2026
2acff85
Merge branch 'master' into huawei_nocharge
CiNcH83 Jul 10, 2026
856158d
Merge branch 'huawei_nocharge' of github.com:CiNcH83/evcc into huawei…
CiNcH83 Jul 10, 2026
36567e4
make stopWdt synchronous
CiNcH83 Jul 10, 2026
87fd6d0
fix race-condition - 47100 is now entirely handled by the watchdog
CiNcH83 Jul 10, 2026
df18297
fix watchdog switch/case
CiNcH83 Jul 10, 2026
b26caf0
Merge remote-tracking branch 'remotes/upstream/master' into huawei_no…
CiNcH83 Jul 10, 2026
c3720a1
revert synchronous stopWdt: redundant after 47100 watchdog consolidation
andig Jul 19, 2026
d51c5d4
Merge branch 'master' into huawei_nocharge
CiNcH83 Jul 19, 2026
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178 changes: 149 additions & 29 deletions templates/definition/meter/huawei-sun2000-hybrid.yaml
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Original file line number Diff line number Diff line change
Expand Up @@ -395,15 +395,37 @@ render: |
set:
source: sequence
set:
- source: const
value: 0 # stop
set:
source: modbus
{{- include "modbus" . | indent 16 }}
register:
address: 47100 # Forcible charge/discharge
type: writesingle
encoding: uint16
# register 47075 is range-checked: a maxchargepower above the
Comment thread
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# inverter rated max (37046) is rejected, so clamp before writing
- source: go
in:
- name: rated
type: int
config:
source: cached
cache: 1h # rated max is static
value:
source: modbus
{{- include "modbus" . | indent 22 }}
register:
address: 37046 # [ESS] Maximum charge power (RO)
type: holding
decode: uint32
out:
- name: power
type: int
config:
source: modbus
{{- include "modbus" . | indent 20 }}
register:
address: 47075 # Max. Charge Power
type: writemultiple
encoding: uint32
script: |
limit := {{ .maxchargepower }}
out := rated
if limit < rated { out = limit }
Comment thread
andig marked this conversation as resolved.
out
# register 47077 is range-checked: a maxdischargepower above the
# inverter rated max (37048) is rejected, so clamp before writing
- source: go
Expand Down Expand Up @@ -439,15 +461,37 @@ render: |
set:
source: sequence
set:
- source: const
value: 0 # stop
set:
source: modbus
{{- include "modbus" . | indent 16 }}
register:
address: 47100 # Forcible charge/discharge
type: writesingle
encoding: uint16
# register 47075 is range-checked: a maxchargepower above the
# inverter rated max (37046) is rejected, so clamp before writing
- source: go
in:
- name: rated
type: int
config:
source: cached
cache: 1h # rated max is static
value:
source: modbus
{{- include "modbus" . | indent 22 }}
register:
address: 37046 # [ESS] Maximum charge power (RO)
type: holding
decode: uint32
out:
- name: power
type: int
config:
source: modbus
{{- include "modbus" . | indent 20 }}
register:
address: 47075 # Max. Charge Power
type: writemultiple
encoding: uint32
script: |
limit := {{ .maxchargepower }}
out := rated
if limit < rated { out = limit }
out
- source: const
value: 0 # W Discharge Power
set:
Expand All @@ -461,6 +505,37 @@ render: |
set:
source: sequence
set:
# register 47075 is range-checked: a maxchargepower above the
# inverter rated max (37046) is rejected, so clamp before writing
- source: go
in:
- name: rated
type: int
config:
source: cached
cache: 1h # rated max is static
value:
source: modbus
{{- include "modbus" . | indent 22 }}
register:
address: 37046 # [ESS] Maximum charge power (RO)
type: holding
decode: uint32
out:
- name: power
type: int
config:
source: modbus
{{- include "modbus" . | indent 20 }}
register:
address: 47075 # Max. Charge Power
type: writemultiple
encoding: uint32
script: |
limit := {{ .maxchargepower }}
out := rated
if limit < rated { out = limit }
out
# clamp maxchargepower to the inverter rated max (37046) for parity
# with discharge, avoiding a stale out-of-range value
- source: go
Expand Down Expand Up @@ -510,21 +585,57 @@ render: |
address: 47246 # Forcible charge/discharge setting mode
type: writesingle
encoding: uint16
- case: 4 # holdcharge
set:
source: sequence
set:
- source: const
value: 0 # W
set:
source: modbus
{{- include "modbus" . | indent 16 }}
register:
address: 47075 # Max. Charge Power
type: writemultiple
encoding: uint32
# register 47077 is range-checked: a maxdischargepower above the
# inverter rated max (37048) is rejected, so clamp before writing
- source: go
in:
- name: rated
type: int
config:
source: cached
cache: 1h # rated max is static
value:
source: modbus
{{- include "modbus" . | indent 22 }}
register:
address: 37048 # [ESS] Maximum discharge power (RO)
type: holding
decode: uint32
out:
- name: power
type: int
config:
source: modbus
{{- include "modbus" . | indent 20 }}
register:
address: 47077 # Max. Discharge Power
type: writemultiple
encoding: uint32
script: |
limit := {{ .maxdischargepower }}
out := rated
if limit < rated { out = limit }
out
# single watchdog wraps the ENTIRE 47100 lifecycle, not just case 3
- source: watchdog
timeout: 30s
reset: 1
reset: [1, 2, 4]
set:
source: switch
switch:
- case: 1 # normal
set:
source: sleep
duration: 0s
- case: 2 # hold
set:
source: sleep
duration: 0s
# only charging requires repeated requests
- case: 3 # charge
set:
source: const
Expand All @@ -536,6 +647,15 @@ render: |
address: 47100 # Forcible charge/discharge
type: writesingle
encoding: uint16

default:
source: const
value: 0 # stop
set:
source: modbus
{{- include "modbus" . | indent 12 }}
register:
address: 47100 # Forcible charge/discharge
type: writesingle
encoding: uint16
{{- include "battery-params" . }}
{{- end }}
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