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Bender: skip Mennekes 4You/4Business unsupported registers 730/740 [0.313 backport] (#32593)

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Michael Geers 2026-08-07 11:56:38 +02:00 • committed by GitHub
parent 5b4b4a333c
commit fbcea37f61
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1 changed files with 20 additions and 13 deletions
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33
charger/bender.go
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@ -49,12 +49,13 @@ type sempHandler struct {
// BenderCC charger implementation
type BenderCC struct {
implement.Caps
conn *modbus.Connection
current uint16
regCurr uint16
legacy bool
log *util.Logger
semp sempHandler
conn *modbus.Connection
current uint16
regCurr uint16
legacy bool
mennekes4 bool
log *util.Logger
semp sempHandler
}
const (
@ -135,10 +136,16 @@ func NewBenderCC(ctx context.Context, settings modbus.TcpSettings, cache time.Du
}
// check legacy register set
if _, err := wb.conn.ReadHoldingRegisters(bendRegChargePointModel, 10); err != nil {
var model string
if b, err := wb.conn.ReadHoldingRegisters(bendRegChargePointModel, 10); err != nil {
wb.legacy = true
} else {
model = bytesAsString(b)
}
// Mennekes 4You/4Business firmware closes the modbus connection on access to unsupported registers 730/740
wb.mennekes4 = strings.Contains(model, "4You") || strings.Contains(model, "4Business")
// check presence of metering
reg := uint16(bendRegActivePower)
if wb.legacy {
@ -155,7 +162,7 @@ func NewBenderCC(ctx context.Context, settings modbus.TcpSettings, cache time.Du
implement.Has(wb, implement.PhaseVoltages(wb.voltages))
}
if !wb.legacy {
if !wb.legacy && !wb.mennekes4 {
if _, err := wb.conn.ReadHoldingRegisters(bendRegEVBatteryState, 1); err == nil {
implement.Has(wb, implement.Battery(wb.soc))
}
@ -498,7 +505,7 @@ func (wb *BenderCC) getPhases() (int, error) {
// identify implements the api.Identifier interface
func (wb *BenderCC) identify() (string, error) {
if !wb.legacy {
if !wb.legacy && !wb.mennekes4 {
b, err := wb.conn.ReadHoldingRegisters(bendRegSmartVehicleDetected, 1)
if err == nil && binary.BigEndian.Uint16(b) != 0 {
b, err = wb.conn.ReadHoldingRegisters(bendRegEVCCID, 6)
@ -556,13 +563,13 @@ func (wb *BenderCC) Diagnose() {
if b, err := wb.conn.ReadHoldingRegisters(bendRegOcppCpStatus, 1); err == nil {
fmt.Printf("\tOCPP Status:\t%d\n", binary.BigEndian.Uint16(b))
}
if !wb.legacy {
if !wb.legacy && !wb.mennekes4 {
if b, err := wb.conn.ReadHoldingRegisters(bendRegSmartVehicleDetected, 1); err == nil {
fmt.Printf("\tSmart Vehicle:\t%t\n", binary.BigEndian.Uint16(b) != 0)
}
}
if b, err := wb.conn.ReadHoldingRegisters(bendRegEVCCID, 6); err == nil {
fmt.Printf("\tEVCCID:\t%s\n", b)
if b, err := wb.conn.ReadHoldingRegisters(bendRegEVCCID, 6); err == nil {
fmt.Printf("\tEVCCID:\t%s\n", b)
}
}
if b, err := wb.conn.ReadHoldingRegisters(bendRegUserID, 10); err == nil {
fmt.Printf("\tUserID:\t%s\n", b)