vb.net与欧姆龙通讯 labview与欧姆龙tcp通讯
谁有VB和OMRON PLC 通信例子啊?能否发个原始代码? 再次特别感谢!
提供一个VB.NET与OMRON以太网通讯的代码,是我项目里面复制出来的:
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Dim Handle1 As Int32 'PLC的连接句柄
Dim EntLink As Boolean '连接标志
Dim PLC As New FinsTcp.PlcClient '引用OMRON的通讯组件
Private Sub butLink_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles butLink.Click
Dim re As Short
Dim restr As String = ""
re = PLC.EntLink(Trim(txtLocalIP.Text), Val(txtLocalPort.Text), Trim(txtRemoteIP.Text), Val(txtRemotePort.Text), "DEMO", Handle1)
txtReLink.Text = re.ToString
If re = 0 Then
EntLink = True
MsgBox("PLC联接成功! ")
Else
EntLink = False
MsgBox("PLC联接失败: " restr)
End If
End Sub
Private Sub butClose_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles butClose.Click
Dim re As Short
EntLink = False
re = PLC.DeLink(Handle1)
txtReClose.Text = re.ToString
End Sub
Private Sub butRead_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles butRead.Click
Dim re As Short
Dim i As Short
Dim RD() As Object
ReDim RD(Val(txtReadCnt.Text - 1))
If Not EntLink Then
MsgBox("还未与PLC建立联接!")
Exit Sub
End If
Dim mry As FinsTcp.PlcClient.PlcMemory = cmbReadMry.SelectedIndex + 1
Dim typ As FinsTcp.PlcClient.DataType = cmbReadType.SelectedIndex + 1
re = PLC.CmdRead(Handle1, mry, typ, CUShort(Val(txtReadAdd.Text)), CUShort(Val(txtReadCnt.Text)), RD)
txtReRead.Text = re.ToString
lstRead.Items.Clear()
For i = 0 To UBound(RD) Step 1
If Not IsNothing(RD(i)) Then lstRead.Items.Add(RD(i))
Next i
If re 0 Then
Timer1.Enabled = False
butScan.Text = "Cycle R/W"
End If
End Sub
Private Sub butWrite_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles butWrite.Click
Dim re As Short
Dim i As Short
Dim temp() As String
Dim WD() As Object
If Not EntLink Then
MsgBox("还未与PLC建立联接!")
Exit Sub
End If
ReDim WD(Val(txtWriteCnt.Text) - 1)
temp = Split(txtWrite.Text, vbCrLf)
For i = 0 To UBound(WD) Step 1
If i UBound(temp) Then
WD(i) = 0
Else
WD(i) = Trim(temp(i))
End If
Next i
Dim mry As FinsTcp.PlcClient.PlcMemory = cmbWriteMry.SelectedIndex + 1
Dim typ As FinsTcp.PlcClient.DataType = cmbWriteType.SelectedIndex + 1
re = PLC.CmdWrite(Handle1, mry, typ, CUShort(Val(txtWriteAdd.Text)), CUShort(Val(txtWriteCnt.Text)), WD)
txtReWrite.Text = re.ToString
If re 0 Then
Timer1.Enabled = False
butScan.Text = "Cycle R/W"
End If
End Sub
欧姆龙PLC与vb通信 能否改变IO开关量(数据类型是bool)的值 怎么改?
plc 编程口是usb的 协议不公开 直接改变不能 但是你可以在plc里写个通讯程序 比如自由口 串口一 接收到字符 1 把100.0 置1
然后在vb里 调用 COM控件 发送字符1 那么plc的 100.0口就可以改变了
大神,你好。我最近在学VB.net,我需要与omron或者三菱PLC进行通讯,有案例嘛?
西门子:WinTcpS7,三菱:EntQsPlc,欧姆龙:FinsTCP,百度都能搜到资源的;
vb.net与三菱PLC通讯线通讯代码,急用,能读写IO及数据寄存器即可
PLC的协议厂家一般都不会公开,不过厂家都有提供高级语言开发的解决方案,百度一下能找到相关资料,三菱的ENTFXPLC,ENTQSPLC,西门子的WINTCPS7,欧姆龙的FINSTCP都有VB.NET和C#的范例的;
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