/
pulsares.go
244 lines (195 loc) Β· 5.83 KB
/
pulsares.go
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package charger
// LICENSE
// Copyright (c) 2023 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.
import (
"encoding/binary"
"fmt"
"time"
"github.com/evcc-io/evcc/api"
"github.com/evcc-io/evcc/util"
"github.com/evcc-io/evcc/util/modbus"
)
// Pulsares charger implementation
type Pulsares struct {
log *util.Logger
conn *modbus.Connection
curr uint16
}
const (
pulsaresRegSwVersion = 0x07
pulsaresRegConnectionStatus = 0x1b
pulsaresRegChargeStatus = 0x1f
pulsaresRegCurrent = 0x5d
pulsaresRegBackup = 0x61
pulsaresRegPhaseWake = 0x75
pulsaresRegPhaseModule = 0x77
pulsaresRegHwVersion = 0x7b
pulsaresRegPhases = 0x8b
)
func init() {
registry.Add("pulsares", NewPulsaresFromConfig)
}
//go:generate go run ../cmd/tools/decorate.go -f decoratePulsares -b *Pulsares -r api.Charger -t "api.PhaseSwitcher,Phases1p3p,func(int) error"
// NewPulsaresFromConfig creates a Pulsares charger from generic config
func NewPulsaresFromConfig(other map[string]interface{}) (api.Charger, error) {
cc := modbus.Settings{
ID: 1,
}
if err := util.DecodeOther(other, &cc); err != nil {
return nil, err
}
wb, err := NewPulsares(cc.URI, cc.Device, cc.Comset, cc.Baudrate, modbus.ProtocolFromRTU(cc.RTU), cc.ID)
if err != nil {
return nil, err
}
var phases1p3p func(int) error
if wb.has1p3p() {
phases1p3p = wb.phases1p3p
}
return decoratePulsares(wb, phases1p3p), nil
}
// NewPulsares creates Pulsares charger
func NewPulsares(uri, device, comset string, baudrate int, proto modbus.Protocol, slaveID uint8) (*Pulsares, error) {
conn, err := modbus.NewConnection(uri, device, comset, baudrate, proto, slaveID)
if err != nil {
return nil, err
}
log := util.NewLogger("pulsares")
conn.Logger(log.TRACE)
wb := &Pulsares{
conn: conn,
curr: 6000,
}
// get initial state from charger
curr, err := wb.getCurrent()
if err != nil {
return nil, fmt.Errorf("current limit: %w", err)
}
if curr >= 6000 {
wb.curr = curr
}
// get failsafe timeout from charger
b, err := wb.conn.ReadHoldingRegisters(pulsaresRegBackup, 1)
if err != nil {
return nil, fmt.Errorf("failsafe timeout: %w", err)
}
var t time.Duration
switch u := binary.BigEndian.Uint16(b); u {
case 2:
t = 2 * time.Second
case 3:
t = 5 * time.Second
case 4:
t = 10 * time.Second
case 5:
t = 30 * time.Second
case 6:
t = 60 * time.Second
}
if t > 0 {
go wb.heartbeat(t / 2)
}
return wb, err
}
func (wb *Pulsares) heartbeat(timeout time.Duration) {
for range time.Tick(timeout) {
if _, err := wb.conn.ReadHoldingRegisters(pulsaresRegBackup, 1); err != nil {
wb.log.ERROR.Println("heartbeat:", err)
}
}
}
func (wb *Pulsares) has1p3p() bool {
if b, err := wb.conn.ReadHoldingRegisters(pulsaresRegSwVersion, 1); err != nil || binary.BigEndian.Uint16(b) < 4 {
return false
}
if b, err := wb.conn.ReadHoldingRegisters(pulsaresRegHwVersion, 1); err != nil || binary.BigEndian.Uint16(b) < 1 {
return false
}
if b, err := wb.conn.ReadHoldingRegisters(pulsaresRegPhaseModule, 1); err != nil || binary.BigEndian.Uint16(b) != 1 {
return false
}
if b, err := wb.conn.ReadHoldingRegisters(pulsaresRegPhaseWake, 1); err != nil || binary.BigEndian.Uint16(b) < 1 {
return false
}
return true
}
func (wb *Pulsares) setCurrent(current uint16) error {
b := make([]byte, 2)
binary.BigEndian.PutUint16(b, current)
_, err := wb.conn.WriteMultipleRegisters(pulsaresRegCurrent, 1, b)
return err
}
func (wb *Pulsares) getCurrent() (uint16, error) {
b, err := wb.conn.ReadHoldingRegisters(pulsaresRegCurrent, 1)
if err != nil {
return 0, err
}
return binary.BigEndian.Uint16(b), nil
}
// Status implements the api.Charger interface
func (wb *Pulsares) Status() (api.ChargeStatus, error) {
b, err := wb.conn.ReadHoldingRegisters(pulsaresRegConnectionStatus, 1)
if err != nil {
return api.StatusNone, err
}
if binary.BigEndian.Uint16(b) != 1 {
return api.StatusA, nil
}
b, err = wb.conn.ReadHoldingRegisters(pulsaresRegChargeStatus, 1)
if err != nil {
return api.StatusNone, err
}
if u := binary.BigEndian.Uint16(b); u == 3 || u == 4 {
return api.StatusC, nil
}
return api.StatusB, nil
}
// Enabled implements the api.Charger interface
func (wb *Pulsares) Enabled() (bool, error) {
curr, err := wb.getCurrent()
return curr >= 6000, err
}
// Enable implements the api.Charger interface
func (wb *Pulsares) Enable(enable bool) error {
var curr uint16
if enable {
curr = wb.curr
}
return wb.setCurrent(curr)
}
// MaxCurrent implements the api.Charger interface
func (wb *Pulsares) MaxCurrent(current int64) error {
return wb.MaxCurrentMillis(float64(current))
}
var _ api.ChargerEx = (*Pulsares)(nil)
// MaxCurrent implements the api.ChargerEx interface
func (wb *Pulsares) MaxCurrentMillis(current float64) error {
if current < 6 {
return fmt.Errorf("invalid current %.1f", current)
}
curr := uint16(current * 1e3)
err := wb.setCurrent(curr)
if err == nil {
wb.curr = curr
}
return err
}
// phases1p3p implements the api.PhaseSwitcher interface
func (wb *Pulsares) phases1p3p(phases int) error {
b := make([]byte, 2)
if phases == 3 {
binary.BigEndian.PutUint16(b, 2)
}
_, err := wb.conn.WriteMultipleRegisters(pulsaresRegPhases, 1, b)
return err
}