302 lines
7.2 KiB
Go
302 lines
7.2 KiB
Go
package charger
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// LICENSE
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// Copyright (c) evcc.io (andig, naltatis, premultiply)
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// This module is NOT covered by the MIT license. All rights reserved.
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// The above copyright notice and this permission notice shall be included in all
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// copies or substantial portions of the Software.
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// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
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// IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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// FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
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// AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
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// LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
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// OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
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// SOFTWARE.
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import (
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"context"
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"encoding/binary"
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"fmt"
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"time"
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"github.com/evcc-io/evcc/api"
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"github.com/evcc-io/evcc/core/loadpoint"
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"github.com/evcc-io/evcc/util"
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"github.com/evcc-io/evcc/util/modbus"
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"github.com/evcc-io/evcc/util/sponsor"
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)
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// Compleo charger implementation
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type Compleo struct {
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lp loadpoint.API
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conn *modbus.Connection
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base uint16
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power uint16
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}
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const (
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// global
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compleoRegBase = 0x0100 // input
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compleoRegFallback = 0x5 // holding
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compleoRegConnectors = 0x0008 // input
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// per connector
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compleoRegMaxPower = 0x0 // holding
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compleoRegStatus = 0x1 // input
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compleoRegActualPower = 0x2 // input
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compleoRegCurrents = 0x3 // input
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compleoRegChargeDuration = 0x6 // input
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compleoRegEnergy = 0x8 // input
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compleoRegVoltages = 0xD // input
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compleoRegIdTag = 0x1000 - compleoRegBase // input
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)
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func init() {
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registry.AddCtx("compleo", NewCompleoFromConfig)
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}
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// NewCompleoFromConfig creates a Compleo charger from generic config
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func NewCompleoFromConfig(ctx context.Context, other map[string]interface{}) (api.Charger, error) {
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cc := struct {
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Connector uint16
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modbus.TcpSettings `mapstructure:",squash"`
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}{
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Connector: 1,
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TcpSettings: modbus.TcpSettings{
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ID: 0xFF,
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},
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}
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if err := util.DecodeOther(other, &cc); err != nil {
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return nil, err
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}
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return NewCompleo(ctx, cc.URI, cc.ID, cc.Connector)
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}
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// NewCompleo creates Compleo charger
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func NewCompleo(ctx context.Context, uri string, slaveID uint8, connector uint16) (api.Charger, error) {
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conn, err := modbus.NewConnection(ctx, uri, "", "", 0, modbus.Tcp, slaveID)
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if err != nil {
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return nil, err
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}
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if !sponsor.IsAuthorized() {
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return nil, api.ErrSponsorRequired
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}
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log := util.NewLogger("compleo")
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conn.Logger(log.TRACE)
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b, err := conn.ReadInputRegisters(compleoRegConnectors, 1)
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if err != nil {
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return nil, err
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}
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if connector > binary.BigEndian.Uint16(b) {
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return nil, fmt.Errorf("invalid connector: %d", connector)
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}
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wb := &Compleo{
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conn: conn,
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base: compleoRegBase + (connector-1)*0x010,
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power: 3 * 230 * 6, // assume min power
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}
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// heartbeat
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b, err = wb.conn.ReadHoldingRegisters(compleoRegFallback, 1)
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if err != nil {
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return nil, fmt.Errorf("failsafe timeout: %w", err)
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}
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if u := binary.BigEndian.Uint16(b); u > 0 {
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go wb.heartbeat(ctx, log, time.Duration(u)*time.Second/2)
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}
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return wb, nil
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}
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func (wb *Compleo) heartbeat(ctx context.Context, log *util.Logger, timeout time.Duration) {
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for tick := time.Tick(timeout); ; {
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select {
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case <-tick:
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case <-ctx.Done():
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return
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}
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if _, err := wb.status(); err != nil {
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log.ERROR.Println("heartbeat:", err)
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}
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}
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}
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func (wb *Compleo) status() (byte, error) {
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b, err := wb.conn.ReadInputRegisters(compleoRegStatus, 1)
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if err != nil {
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return 0, err
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}
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return b[1], nil
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}
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// Status implements the api.Charger interface
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func (wb *Compleo) Status() (api.ChargeStatus, error) {
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s, err := wb.status()
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if err != nil {
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return api.StatusNone, err
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}
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res := api.StatusA
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if s&1 > 0 {
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res = api.StatusB
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}
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if s&2 > 0 {
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res = api.StatusC
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}
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return res, nil
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}
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// Enabled implements the api.Charger interface
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func (wb *Compleo) Enabled() (bool, error) {
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b, err := wb.conn.ReadHoldingRegisters(compleoRegMaxPower, 1)
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if err != nil {
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return false, err
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}
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return binary.BigEndian.Uint16(b) != 0, nil
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}
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// Enable implements the api.Charger interface
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func (wb *Compleo) Enable(enable bool) error {
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var power uint16
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if enable {
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power = wb.power
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}
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return wb.setPower(power)
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}
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// setPower writes the power limit in 100W steps
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func (wb *Compleo) setPower(power uint16) error {
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_, err := wb.conn.WriteSingleRegister(compleoRegMaxPower, power/100)
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return err
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}
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// MaxCurrent implements the api.Charger interface
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func (wb *Compleo) MaxCurrent(current int64) error {
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return wb.MaxCurrentMillis(float64(current))
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}
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var _ api.ChargerEx = (*Compleo)(nil)
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// MaxCurrent implements the api.ChargerEx interface
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func (wb *Compleo) MaxCurrentMillis(current float64) error {
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if current < 6 {
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return fmt.Errorf("invalid current %.1f", current)
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}
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phases := 3
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if wb.lp != nil {
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if p := wb.lp.ActivePhases(); p != 0 {
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phases = p
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}
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}
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power := uint16(voltage * current * float64(phases))
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err := wb.setPower(power)
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if err == nil {
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wb.power = power
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}
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return err
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}
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var _ api.Meter = (*Compleo)(nil)
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// CurrentPower implements the api.Meter interface
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func (wb *Compleo) CurrentPower() (float64, error) {
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b, err := wb.conn.ReadInputRegisters(compleoRegActualPower, 1)
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if err != nil {
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return 0, err
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}
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return float64(binary.BigEndian.Uint16(b)) * 100, err
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}
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var _ api.ChargeRater = (*Compleo)(nil)
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// ChargedEnergy implements the api.MeterEnergy interface
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func (wb *Compleo) ChargedEnergy() (float64, error) {
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b, err := wb.conn.ReadInputRegisters(compleoRegEnergy, 1)
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if err != nil {
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return 0, err
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}
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return float64(binary.BigEndian.Uint16(b)) / 10, err
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}
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// getPhaseValues returns 3 sequential register values
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func (wb *Compleo) getPhaseValues(reg uint16, divider float64) (float64, float64, float64, error) {
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b, err := wb.conn.ReadInputRegisters(reg, 3)
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if err != nil {
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return 0, 0, 0, err
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}
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var res [3]float64
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for i := range res {
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res[i] = float64(binary.BigEndian.Uint16(b[2*i:])) / divider
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}
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return res[0], res[1], res[2], nil
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}
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var _ api.PhaseCurrents = (*Compleo)(nil)
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// Currents implements the api.PhaseCurrents interface
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func (wb *Compleo) Currents() (float64, float64, float64, error) {
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return wb.getPhaseValues(compleoRegCurrents, 10)
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}
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var _ api.PhaseVoltages = (*Compleo)(nil)
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// Voltages implements the api.PhaseVoltages interface
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func (wb *Compleo) Voltages() (float64, float64, float64, error) {
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return wb.getPhaseValues(compleoRegVoltages, 1)
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}
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var _ api.ChargeTimer = (*Compleo)(nil)
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// ChargeDuration implements the api.ChargeTimer interface
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func (wb *Compleo) ChargeDuration() (time.Duration, error) {
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b, err := wb.conn.ReadHoldingRegisters(compleoRegChargeDuration, 2)
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if err != nil {
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return 0, err
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}
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return time.Duration(binary.LittleEndian.Uint32(b)) * time.Second, nil
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}
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var _ api.Identifier = (*Compleo)(nil)
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// Identify implements the api.Identifier interface
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func (wb *Compleo) Identify() (string, error) {
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b, err := wb.conn.ReadInputRegisters(compleoRegIdTag, 0x10)
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if err != nil {
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return "", err
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}
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return bytesAsString(b), nil
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}
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var _ loadpoint.Controller = (*Compleo)(nil)
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// LoadpointControl implements loadpoint.Controller
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func (wb *Compleo) LoadpointControl(lp loadpoint.API) {
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wb.lp = lp
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}
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