package service
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import (
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"apsClient/conf"
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"apsClient/constvar"
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"apsClient/model"
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"apsClient/pkg/logx"
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"apsClient/pkg/plc"
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"apsClient/pkg/plc/modbusx"
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"apsClient/pkg/plccom"
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"encoding/binary"
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"errors"
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"fmt"
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"github.com/spf13/cast"
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)
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func PlcRead(plcConfig *model.DevicePlc, fieldType constvar.PlcStartAddressType, position int) (val interface{}, err error) {
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var (
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startAddress int
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valueType constvar.PlcStartAddressValueType
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dataLength int
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ipAddr string
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)
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for _, pc := range plcConfig.Details {
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if pc.FieldName == fieldType && pc.Position == position {
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startAddress = pc.StartAddress
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valueType = pc.Type
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dataLength = pc.Length
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}
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}
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if plcConfig.Method == constvar.PlcMethodModbusTCP {
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ipAddr = fmt.Sprintf("%s:%v", plcConfig.Address, plcConfig.Port)
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conn, err := plc.GetModbusConnection(ipAddr)
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if err != nil {
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logx.Errorf("PlcRead 连接plc失败: %v", err.Error())
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return nil, err
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}
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rawData, err := plc.ReadHoldingRegister(conn, startAddress, dataLength)
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if err != nil {
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logx.Errorf("PlcRead 获取plc数据失败: %v", err.Error())
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return nil, err
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}
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switch valueType {
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case constvar.PlcStartAddressValueTypeString:
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return string(rawData), nil
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case constvar.PlcStartAddressValueTypeInt:
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if len(rawData) == 2 {
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return int(binary.BigEndian.Uint16(rawData)), nil
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} else {
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logx.Errorf("plc read get an unknown int value: %v, address:%v", rawData, startAddress)
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return nil, errors.New(fmt.Sprintf("unknown int value：%v", rawData))
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}
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}
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return nil, errors.New("undefined value type")
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} else if plcConfig.Method == constvar.PlcMethodSerial {
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ipAddr = conf.Conf.Services.Serial
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if ipAddr == "" {
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return nil, errors.New("conf.Conf.Services.Serial config not set yet")
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}
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label := fmt.Sprintf("D%d", startAddress)
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return plccom.ReadPLC(plccom.DeviceTypeMitsubishi, ipAddr, label)
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}
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return nil, errors.New("interface type not support")
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}
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func PlcWrite(plcConfig *model.DevicePlc, fieldType constvar.PlcStartAddressType, position int, value interface{}) (err error) {
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var (
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startAddress int
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ipAddr string
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)
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if plcConfig.CurrentTryTimes > plcConfig.MaxTryTimes {
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return plcConfig.CurrentErr
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}
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plcConfig.CurrentTryTimes++
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for _, pc := range plcConfig.Details {
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if pc.FieldName == fieldType && pc.Position == position {
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startAddress = pc.StartAddress
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}
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}
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if plcConfig.Method == constvar.PlcMethodModbusTCP {
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ipAddr = fmt.Sprintf("%s:%v", plcConfig.Address, plcConfig.Port)
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//conn, err := plc.GetModbusConnection(ipAddr)
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//if err != nil {
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// logx.Errorf("plc write failed, 连接plc失败: %v", err.Error())
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// plcConfig.CurrentErr = err
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// return PlcWrite(plcConfig, fieldType, position, value)
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//}
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//
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//result, err := plc.WriteHoldingRegister(conn, startAddress, value)
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err = modbusx.Write(ipAddr, uint16(startAddress), value)
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if err != nil {
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logx.Errorf("plc write failed, address: %v, value: %v, err: %v", startAddress, value, err.Error())
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plcConfig.CurrentErr = err
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return PlcWrite(plcConfig, fieldType, position, value)
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}
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logx.Infof("plc write ok, address: %v, value: %v", startAddress, value)
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} else if plcConfig.Method == constvar.PlcMethodSerial {
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ipAddr = conf.Conf.Services.Serial
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if ipAddr == "" {
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return errors.New("conf.Conf.Services.Serial config not set yet")
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}
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label := fmt.Sprintf("D%d", startAddress)
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return plccom.WritePLC(plccom.DeviceTypeMitsubishi, ipAddr, label, cast.ToInt(value))
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}
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return
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}
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func PlcWriteDirect(plcConfig *model.DevicePlc, address int, value interface{}) (err error) {
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var (
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ipAddr string
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)
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if plcConfig.CurrentTryTimes > plcConfig.MaxTryTimes {
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logx.Errorf("plc write try time beyond max try times, err: %v", plcConfig.CurrentErr)
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return plcConfig.CurrentErr
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}
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plcConfig.CurrentTryTimes++
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if plcConfig.Method == constvar.PlcMethodModbusTCP {
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ipAddr = fmt.Sprintf("%s:%v", plcConfig.Address, plcConfig.Port)
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//conn, err := plc.GetModbusConnection(ipAddr)
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//if err != nil {
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// logx.Errorf("plc write failed, 连接plc失败: %v", err.Error())
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// plcConfig.CurrentErr = err
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// return PlcWriteDirect(plcConfig, address, value)
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//}
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//result, err := plc.WriteHoldingRegister(conn, address, value)
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err = modbusx.Write(ipAddr, uint16(address), value)
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if err != nil {
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logx.Errorf("plc write failed, address: %v, value: %v, err: %v", address, value, err.Error())
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plcConfig.CurrentErr = err
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return PlcWriteDirect(plcConfig, address, value)
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}
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logx.Infof("plc write ok, address: %v, value: %v", address, value)
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} else if plcConfig.Method == constvar.PlcMethodSerial {
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ipAddr = conf.Conf.Services.Serial
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if ipAddr == "" {
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return errors.New("conf.Conf.Services.Serial config not set yet")
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}
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label := fmt.Sprintf("D%d", address)
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return plccom.WritePLC(plccom.DeviceTypeMitsubishi, ipAddr, label, cast.ToInt(value))
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}
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return
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}
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func PlcReadDirect(plcConfig *model.DevicePlc, address int, dataLength int, valueType constvar.PlcStartAddressValueType) (val interface{}, err error) {
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var (
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ipAddr string
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)
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if plcConfig.CurrentTryTimes > plcConfig.MaxTryTimes {
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logx.Errorf("plc read try time beyond max try times, err: %v", plcConfig.CurrentErr)
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return nil, plcConfig.CurrentErr
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}
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plcConfig.CurrentTryTimes++
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if plcConfig.Method == constvar.PlcMethodModbusTCP {
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ipAddr = fmt.Sprintf("%s:%v", plcConfig.Address, plcConfig.Port)
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//conn, err := plc.GetModbusConnection(ipAddr)
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//if err != nil {
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// plcConfig.CurrentErr = err
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// return PlcReadDirect(plcConfig, address, dataLength, valueType)
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//}
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//value, err := plc.ReadHoldingRegister(conn, address, dataLength)
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value, err := modbusx.Read(ipAddr, uint16(address), uint16(dataLength))
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if err != nil {
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plcConfig.CurrentErr = err
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return PlcReadDirect(plcConfig, address, dataLength, valueType)
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}
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switch valueType {
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case constvar.PlcStartAddressValueTypeString:
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return string(value), nil
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case constvar.PlcStartAddressValueTypeInt:
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if len(value) == 2 {
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return int(binary.BigEndian.Uint16(value)), nil
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} else {
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logx.Errorf("plc read get an unknown int value: %v, address:%v", value, address)
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return nil, errors.New(fmt.Sprintf("unknown int value：%v", value))
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}
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}
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logx.Infof("plc read ok, address: %v, result: %v", address, value)
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} else if plcConfig.Method == constvar.PlcMethodSerial {
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ipAddr = conf.Conf.Services.Serial
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if ipAddr == "" {
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return nil, errors.New("conf.Conf.Services.Serial config not set yet")
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}
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label := fmt.Sprintf("D%d", address)
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return plccom.ReadPLC(plccom.DeviceTypeMitsubishi, ipAddr, label)
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}
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return
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}
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