update

zhangqian

2023-10-26 07db2029d66a028a2d2256d2c158693c3a42b5f8

 pkg/plc/plc4x.go

@@ -1,12 +1,15 @@
package plc

import (
   "apsClient/conf"
   "apsClient/pkg/logx"
   "context"
   "errors"
   "fmt"
   apiModel "github.com/apache/plc4x/plc4go/pkg/api/model"
   "github.com/spf13/cast"
   "sync"
   "sync/atomic"
   "time"

   plc4go "github.com/apache/plc4x/plc4go/pkg/api"
@@ -107,7 +110,7 @@

func readHoldingRegisterSingle(connection plc4go.PlcConnection, address int) ([]byte, error) {
   tag := fmt.Sprintf("tag:%v", address)
   tagAddress := fmt.Sprintf("holding-register:%d:UINT", address)
   tagAddress := getTagAddress(address, 1)

   // 读模式
   readRequest, err := connection.ReadRequestBuilder().AddTagAddress(tag, tagAddress).Build()
@@ -137,7 +140,7 @@

func readHoldingRegisterList(connection plc4go.PlcConnection, address, length int) ([]byte, error) {
   tag := fmt.Sprintf("tag:%v:%v", address, length)
   tagAddress := fmt.Sprintf("holding-register:%d:UINT[%d]", address, length)
   tagAddress := getTagAddress(address, length)

   // 读模式
   readRequest, err := connection.ReadRequestBuilder().AddTagAddress(tag, tagAddress).Build()
@@ -149,13 +152,13 @@
   // 执行
   readResult := <-readRequest.Execute()
   if err := readResult.GetErr(); err != nil {
      logx.Errorf("execting read-request:%s\n", err.Error())
      logx.Errorf("plc4x execute read-request:%s\n", err.Error())
      return nil, err
   }

   // 判断响应码是否正确
   if readResult.GetResponse().GetResponseCode(tag) != apiModel.PlcResponseCode_OK {
      logx.Errorf("error an non-ok return code: %s", readResult.GetResponse().GetResponseCode(tag).GetName())
      logx.Errorf("plc4x response error code: %s", readResult.GetResponse().GetResponseCode(tag).GetName())
      return nil, errors.New("error  code: " + readResult.GetResponse().GetResponseCode(tag).GetName())
   }

@@ -178,27 +181,44 @@
   return readHoldingRegisterSingle(connection, address)
}

func getTagAddress(address int, length int) string {
   intType := conf.Conf.PLC.ModbusIntType
   if intType == "" {
      intType = "DINT"
   }
   if length == 1 {
      return fmt.Sprintf("holding-register:%d:%v", address, intType)
   } else {
      return fmt.Sprintf("holding-register:%d:%v[%d]", address, intType, length)
   }
}

func WriteHoldingRegister(connection plc4go.PlcConnection, address int, value any) (string, error) {
   tag := fmt.Sprintf("tag:%v:w", address)
   tagAddress := fmt.Sprintf("holding-register:%d:UINT", address)
   var tagAddress string
   if cast.ToInt32(value) > 2<<16 {
      tagAddress = getTagAddress(address, 2)
   } else {
      tagAddress = getTagAddress(address, 1)
   }

   // 写模式
   writeRequest, err := connection.WriteRequestBuilder().AddTagAddress(tag, tagAddress, value).Build()
   if err != nil {
      logx.Errorf("preparing read-request:%s\n", err.Error())
      logx.Errorf("plc4x preparing read-request:%s\n", err.Error())
      return "", err
   }

   // 执行
   writeResult := <-writeRequest.Execute()
   if err := writeResult.GetErr(); err != nil {
      logx.Errorf("execting read-request:%s\n", err.Error())
      logx.Errorf("plc4x execute write-request:%s\n", err.Error())
      return "", err
   }

   // 判断响应码是否正确
   if writeResult.GetResponse().GetResponseCode(tag) != apiModel.PlcResponseCode_OK {
      logx.Errorf("error an non-ok return code: %s", writeResult.GetResponse().GetResponseCode(tag).GetName())
      logx.Errorf("plc4x  response error code: %s", writeResult.GetResponse().GetResponseCode(tag).GetName())
      return "", errors.New("error  code: " + writeResult.GetResponse().GetResponseCode(tag).GetName())
   }

@@ -206,3 +226,41 @@

   return result, nil
}

func dealErr(err error, ipAddr string) {
   if err != nil {
      FailureRemainingOpportunitiesDecr() //减少失败剩余机会
   } else {
      FailureRemainingOpportunitiesReset() //重置失败剩余机会
   }
}

var connectionStatus atomic.Bool

var failureRemainingOpportunities atomic.Int64

const (
   defaultFailureRemainingOpportunities = 20
)

func IsConnect() bool {
   return connectionStatus.Load()
}

func FailureRemainingOpportunitiesDecr() {
   newValue := failureRemainingOpportunities.Add(-1)
   if newValue <= 0 {
      connectionStatus.Store(false)
   }
   return
}

func FailureRemainingOpportunitiesReset() {
   if failureRemainingOpportunities.Load() < defaultFailureRemainingOpportunities {
      failureRemainingOpportunities.Store(defaultFailureRemainingOpportunities)
   }
   if connectionStatus.Load() == false {
      connectionStatus.Store(true)
   }
   return
}