Add Bender CC612/613 charge controller (#3103)

Co-authored-by: andig <cpuidle@gmx.de>

README.md

@@ -15,7 +15,7 @@ Evcc is an extensible EV Charge Controller with PV integration implemented in [G
 
 - simple and clean user interface
 - wide range of supported [chargers](https://docs.evcc.io/docs/devices/chargers):
-  - ABL eMH1, Alfen Eve, cFos PowerBrain, Daheimladen, [EVSEWifi/ smartWB](https://www.evse-wifi.de), go-eCharger, HardyBarth (eCB1, cPH1, cPH2) Heidelberg Energy Control, Innogy (eBox), KEBA/BMW, Menneckes  Amtron (Xtra/Premium), NRGkick, [openWB (includes Pro)](https://openwb.de/), PC Electric (includes Garo), Vestel, Wallbe, Webasto Live, Mobile Charger Connect
+  - ABL eMH1, Alfen (Eve), Bender (CC612/613), cFos (PowerBrain), Daheimladen, Ebee (Wallbox), Ensto (Chago Wallbox), [EVSEWifi/ smartWB](https://www.evse-wifi.de), Garo (GLB, GLB+, LS4), go-eCharger, HardyBarth (eCB1, cPH1, cPH2), Heidelberg (Energy Control), Innogy (eBox), Juice (Charger Me), KEBA/BMW, Menneckes (Amedio, Amtron Premium/Xtra, Amtron ChargeConrol), NRGkick, [openWB (includes Pro)](https://openwb.de/), Optec (Mobility One), PC Electric (includes Garo), TechniSat (Technivolt), Ubitricity (Heinz), Vestel, Wallbe, Webasto (Live), Mobile Charger Connect
   - experimental EEBus support (PMCC)
   - Build-your-own: Phoenix (includes ESL Walli), [EVSE DIN](https://www.evse-wifi.de/produkt-schlagwort/simple-evse-wb/)
   - Smart-Home outlets: FritzDECT, Shelly, Tasmota, TP-Link

charger/bender.go

@@ -0,0 +1,261 @@
+package charger
+
+// LICENSE
+
+// Copyright (c) 2022 premultiply
+
+// This module is NOT covered by the MIT license. All rights reserved.
+
+// The above copyright notice and this permission notice shall be included in all
+// copies or substantial portions of the Software.
+
+// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+// IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+// FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+// AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+// LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+// OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
+// SOFTWARE.
+
+// Supports all chargers based on Bender CC612/613 controller series
+// * The modbus server must be enabled
+// * The setting 'Modbus Slave Register Address Set' must NOT be set to 'Phoenix' or 'TQ-DM100'.
+//   Use the third selection labeled 'Ebee', 'Bender' etc.
+
+import (
+	"encoding/binary"
+	"fmt"
+	"time"
+
+	"github.com/evcc-io/evcc/api"
+	"github.com/evcc-io/evcc/util"
+	"github.com/evcc-io/evcc/util/modbus"
+	"github.com/evcc-io/evcc/util/sponsor"
+)
+
+// BenderCC charger implementation
+type BenderCC struct {
+	conn    *modbus.Connection
+	current uint16
+}
+
+const (
+	// all holding type registers
+	bendRegChargePointState = 122  // Vehicle (Control Pilot) state
+	bendRegCurrents         = 212  // Currents from primary meter (mA)
+	bendRegTotalEnergy      = 218  // Total Energy from primary meter (Wh)
+	bendRegActivePower      = 220  // Active Power from primary meter (W)
+	bendRegChargedEnergy    = 716  // Sum of charged energy for the current session (Wh)
+	bendRegChargingDuration = 718  // Duration since beginning of charge (Seconds)
+	bendRegEVCCID           = 741  // ASCII representation of the Hex. Values corresponding to the EVCCID. Bytes 0 to 11.
+	bendRegHemsCurrentLimit = 1000 // Current limit of the HEMS module (A)
+
+	bendRegFirmware             = 100 // Application version number
+	bendRegOcppCpStatus         = 104 // Charge Point status according to the OCPP spec. enumaration
+	bendRegProtocolVersion      = 120 // Ebee Modbus TCP Server Protocol Version number
+	bendRegChargePointModel     = 142 // ChargePoint Model. Bytes 0 to 19.
+	bendRegSmartVehicleDetected = 740 // Returns 1 if an EV currently connected is a smart vehicle, or 0 if no EV connected or it is not a smart vehicle
+)
+
+func init() {
+	registry.Add("bender", NewBenderCCFromConfig)
+}
+
+// NewBenderCCFromConfig creates a BenderCC charger from generic config
+func NewBenderCCFromConfig(other map[string]interface{}) (api.Charger, error) {
+	cc := modbus.TcpSettings{
+		ID: 255,
+	}
+
+	if err := util.DecodeOther(other, &cc); err != nil {
+		return nil, err
+	}
+
+	return NewBenderCC(cc.URI, cc.ID)
+}
+
+// NewBenderCC creates BenderCC charger
+func NewBenderCC(uri string, id uint8) (api.Charger, error) {
+	conn, err := modbus.NewConnection(uri, "", "", 0, modbus.Tcp, id)
+	if err != nil {
+		return nil, err
+	}
+
+	if !sponsor.IsAuthorized() {
+		return nil, api.ErrSponsorRequired
+	}
+
+	log := util.NewLogger("bender")
+	conn.Logger(log.TRACE)
+
+	wb := &BenderCC{
+		conn:    conn,
+		current: 6, // assume min current
+	}
+
+	return wb, err
+}
+
+// Status implements the api.Charger interface
+func (wb *BenderCC) Status() (api.ChargeStatus, error) {
+	b, err := wb.conn.ReadHoldingRegisters(bendRegChargePointState, 1)
+	if err != nil {
+		return api.StatusNone, err
+	}
+
+	sb := binary.BigEndian.Uint16(b)
+
+	switch sb {
+	case 1:
+		return api.StatusA, nil
+	case 2:
+		return api.StatusB, nil
+	case 3:
+		return api.StatusC, nil
+	case 4:
+		return api.StatusD, nil
+	case 5:
+		return api.StatusE, nil
+	default:
+		return api.StatusNone, fmt.Errorf("invalid status: %d", sb)
+	}
+}
+
+// Enabled implements the api.Charger interface
+func (wb *BenderCC) Enabled() (bool, error) {
+	b, err := wb.conn.ReadHoldingRegisters(bendRegHemsCurrentLimit, 1)
+	if err != nil {
+		return false, err
+	}
+
+	cur := binary.BigEndian.Uint16(b)
+
+	return cur != 0, nil
+}
+
+// Enable implements the api.Charger interface
+func (wb *BenderCC) Enable(enable bool) error {
+	b := make([]byte, 2)
+	if enable {
+		binary.BigEndian.PutUint16(b, wb.current)
+	}
+
+	_, err := wb.conn.WriteMultipleRegisters(bendRegHemsCurrentLimit, 1, b)
+
+	return err
+}
+
+// MaxCurrent implements the api.Charger interface
+func (wb *BenderCC) MaxCurrent(current int64) error {
+	if current < 6 {
+		return fmt.Errorf("invalid current %d", current)
+	}
+
+	b := make([]byte, 2)
+	binary.BigEndian.PutUint16(b, uint16(current))
+
+	_, err := wb.conn.WriteMultipleRegisters(bendRegHemsCurrentLimit, 1, b)
+	if err == nil {
+		wb.current = uint16(current)
+	}
+
+	return err
+}
+
+var _ api.ChargeTimer = (*BenderCC)(nil)
+
+// ChargingTime implements the api.ChargeTimer interface
+func (wb *BenderCC) ChargingTime() (time.Duration, error) {
+	b, err := wb.conn.ReadHoldingRegisters(bendRegChargingDuration, 2)
+	if err != nil {
+		return 0, err
+	}
+
+	return time.Duration(binary.BigEndian.Uint32(b)) * time.Second, nil
+}
+
+var _ api.Meter = (*BenderCC)(nil)
+
+// CurrentPower implements the api.Meter interface
+func (wb *BenderCC) CurrentPower() (float64, error) {
+	b, err := wb.conn.ReadHoldingRegisters(bendRegActivePower, 2)
+	if err != nil {
+		return 0, err
+	}
+
+	return float64(binary.BigEndian.Uint32(b)), nil
+}
+
+var _ api.ChargeRater = (*BenderCC)(nil)
+
+// ChargedEnergy implements the api.ChargeRater interface
+func (wb *BenderCC) ChargedEnergy() (float64, error) {
+	b, err := wb.conn.ReadHoldingRegisters(bendRegChargedEnergy, 2)
+	if err != nil {
+		return 0, err
+	}
+
+	return float64(binary.BigEndian.Uint32(b)) / 1e3, nil
+}
+
+var _ api.MeterEnergy = (*BenderCC)(nil)
+
+// TotalEnergy implements the api.MeterEnergy interface
+func (wb *BenderCC) TotalEnergy() (float64, error) {
+	b, err := wb.conn.ReadHoldingRegisters(bendRegTotalEnergy, 2)
+	if err != nil {
+		return 0, err
+	}
+
+	return float64(binary.BigEndian.Uint32(b)) / 1e3, nil
+}
+
+var _ api.MeterCurrent = (*BenderCC)(nil)
+
+// Currents implements the api.MeterCurrent interface
+func (wb *BenderCC) Currents() (float64, float64, float64, error) {
+	b, err := wb.conn.ReadHoldingRegisters(bendRegCurrents, 6)
+	if err != nil {
+		return 0, 0, 0, err
+	}
+
+	var curr [3]float64
+	for l := 0; l < 3; l++ {
+		curr[l] = float64(binary.BigEndian.Uint32(b[4*l:4*(l+1)])) / 1e3
+	}
+
+	return curr[0], curr[1], curr[2], nil
+}
+
+var _ api.Identifier = (*BenderCC)(nil)
+
+// Identify implements the api.Identifier interface
+func (wb *BenderCC) Identify() (string, error) {
+	b, err := wb.conn.ReadHoldingRegisters(bendRegEVCCID, 6)
+	if err != nil {
+		return "", err
+	}
+
+	return string(b), nil
+}
+
+var _ api.Diagnosis = (*BenderCC)(nil)
+
+// Diagnose implements the api.Diagnosis interface
+func (wb *BenderCC) Diagnose() {
+	if b, err := wb.conn.ReadHoldingRegisters(bendRegChargePointModel, 10); err == nil {
+		fmt.Printf("\tModel:\t%s\n", b)
+	}
+	if b, err := wb.conn.ReadHoldingRegisters(bendRegFirmware, 2); err == nil {
+		fmt.Printf("\tFirmware:\t%s\n", b)
+	}
+	if b, err := wb.conn.ReadHoldingRegisters(bendRegProtocolVersion, 2); err == nil {
+		fmt.Printf("\tProtocol:\t%s\n", b)
+	}
+	if b, err := wb.conn.ReadHoldingRegisters(bendRegOcppCpStatus, 1); err == nil {
+		fmt.Printf("\tOCPP Status:\t%d\n", binary.BigEndian.Uint16(b))
+	}
+	if b, err := wb.conn.ReadHoldingRegisters(bendRegSmartVehicleDetected, 1); err == nil {
+		fmt.Printf("\tSmart Vehicle:\t%t\n", binary.BigEndian.Uint16(b) != 0)
+	}
+}

templates/definition/charger/bender.yaml

@@ -0,0 +1,45 @@
+template: bender
+products:
+  - brand: Bender
+    description:
+      generic: CC612/613
+  - brand: Mennekes
+    description:
+      generic: Amedio, Amtron ChargeControl, Professional
+  - brand: Webasto
+    description:
+      generic: Live
+  - brand: Juice
+    description:
+      generic: Charger Me
+  - brand: TechniSat
+    description:
+      generic: Technivolt
+  - brand: Ebee
+    description:
+      generic: Wallbox
+  - brand: Optec
+    description:
+      generic: Mobility One
+  - brand: Garo
+    description:
+      generic: GLB, GLB+, LS4, LS4 compact
+  - brand: Ensto
+    description:
+      generic: Chago Wallbox
+  - brand: Ubitricity
+    description:
+      generic: Heinz
+requirements:
+  description:
+    de: Der Modbus Server muss aktiviert sein. 'Modbus Slave Register Address Set' darf NICHT auf 'Phoenix' oder 'TQ-DM100' eingestellt sein. Die dritte Auswahlmöglichkeit 'Ebee', 'Bender' etc. ist richtig.
+    en: The Modbus server must be enabled. The setting 'Modbus Slave Register Address Set' must NOT be set to 'Phoenix' or 'TQ-DM100'. Use the third selection labeled 'Ebee', 'Bender' etc.
+params:
+  - name: host
+    required: true
+    example: 192.0.2.2
+  - name: port
+    default: 502
+render: |
+  type: bender
+  uri: {{ .host }}:{{ .port }}

templates/docs/charger/bender_0.yaml

@@ -0,0 +1,11 @@
+product:
+  brand: Bender
+  description: CC612/613
+description: |
+  Der Modbus Server muss aktiviert sein. 'Modbus Slave Register Address Set' darf NICHT auf 'Phoenix' oder 'TQ-DM100' eingestellt sein. Die dritte Auswahlmöglichkeit 'Ebee', 'Bender' etc. ist richtig.
+render:
+  - default: |
+      type: template
+      template: bender
+      host: 192.0.2.2 # IP-Adresse oder Hostname
+      port: 502 # Port # Optional

templates/docs/charger/bender_1.yaml

@@ -0,0 +1,11 @@
+product:
+  brand: Mennekes
+  description: Amedio, Amtron ChargeControl, Professional
+description: |
+  Der Modbus Server muss aktiviert sein. 'Modbus Slave Register Address Set' darf NICHT auf 'Phoenix' oder 'TQ-DM100' eingestellt sein. Die dritte Auswahlmöglichkeit 'Ebee', 'Bender' etc. ist richtig.
+render:
+  - default: |
+      type: template
+      template: bender
+      host: 192.0.2.2 # IP-Adresse oder Hostname
+      port: 502 # Port # Optional

templates/docs/charger/bender_2.yaml

@@ -0,0 +1,11 @@
+product:
+  brand: Webasto
+  description: Live
+description: |
+  Der Modbus Server muss aktiviert sein. 'Modbus Slave Register Address Set' darf NICHT auf 'Phoenix' oder 'TQ-DM100' eingestellt sein. Die dritte Auswahlmöglichkeit 'Ebee', 'Bender' etc. ist richtig.
+render:
+  - default: |
+      type: template
+      template: bender
+      host: 192.0.2.2 # IP-Adresse oder Hostname
+      port: 502 # Port # Optional

templates/docs/charger/bender_3.yaml

@@ -0,0 +1,11 @@
+product:
+  brand: Juice
+  description: Charger Me
+description: |
+  Der Modbus Server muss aktiviert sein. 'Modbus Slave Register Address Set' darf NICHT auf 'Phoenix' oder 'TQ-DM100' eingestellt sein. Die dritte Auswahlmöglichkeit 'Ebee', 'Bender' etc. ist richtig.
+render:
+  - default: |
+      type: template
+      template: bender
+      host: 192.0.2.2 # IP-Adresse oder Hostname
+      port: 502 # Port # Optional

templates/docs/charger/bender_4.yaml

@@ -0,0 +1,11 @@
+product:
+  brand: TechniSat
+  description: Technivolt
+description: |
+  Der Modbus Server muss aktiviert sein. 'Modbus Slave Register Address Set' darf NICHT auf 'Phoenix' oder 'TQ-DM100' eingestellt sein. Die dritte Auswahlmöglichkeit 'Ebee', 'Bender' etc. ist richtig.
+render:
+  - default: |
+      type: template
+      template: bender
+      host: 192.0.2.2 # IP-Adresse oder Hostname
+      port: 502 # Port # Optional

templates/docs/charger/bender_5.yaml

@@ -0,0 +1,11 @@
+product:
+  brand: Ebee
+  description: Wallbox
+description: |
+  Der Modbus Server muss aktiviert sein. 'Modbus Slave Register Address Set' darf NICHT auf 'Phoenix' oder 'TQ-DM100' eingestellt sein. Die dritte Auswahlmöglichkeit 'Ebee', 'Bender' etc. ist richtig.
+render:
+  - default: |
+      type: template
+      template: bender
+      host: 192.0.2.2 # IP-Adresse oder Hostname
+      port: 502 # Port # Optional