Mass Flow Controller MKS MF-1 Modbus TCP FX5U

[Levent1970 2]

Hi !

I have to Control and Read an Masss Flow Controller (MFC) MKS MF-1, I have give this one an IP Adress (10.46.103.75).

How can I Control it over Modbus TCP? I found in GX Works 3 in Tool/Predifined Protocol Support function the Modbus Menue, but i have no Idea

how to Config it, i have no Idea how Modbus works.....

Have someone an Example for a Configuration? 

[Levent1970 2]

I Found this solution:

 ModbusTcpClient(ConnectionNo:= 3 ,LocalPortNo:= 5645 ,RemoteIPAddress:= 16#0A2E6749 ,RemotePortNo:= 502 ,UnitId:= 255 ,  EnableConnection:= EnableConnection ,StartSend:= StartSend ,FirstAddress1:= FirstAddress ,ResponseTimeout:= 100 ,NoOfRetries:= 1 ,  SingleDevicesFCode05h06h:= SingleDevices ,ReadOnlyDevicesFCode02h04h:= ReadOnlyDevices ,Read:= Read ,Write:= Write ,BitOrRegister:= BitOrRegister ,  ReadStartAddress:= ReadStartAddr ,ReadNoOfDevices:= ReadNoOfDevs ,WriteStartAddress:= WriteStartAddr ,WriteNoOfDevices:= WriteNoOfDevs ,WriteData:= WriteData ,  OpenComplete=> OpenComplete ,CommandCompleted=> CommandCompleted ,ReadData=> ReadData ,ReadDataByteCount=> ReadDataByteCount ,ReadDataWordCount=> ReadDataWordCount ,  OpenError=> OpenError ,OpenErrorCode=> OpenErrorCode ,Error=> GeneralError ,ResponseTimeoutError=> ResponseTimeoutError ,InvalidCommand=> InvalidCommand ,  InvalidResponse=> InvalidResponse ,ModbusException=> ModbusException ,ModbusExceptionCode=> ModbusExceptionCode );
    

Now i can Read and Write something to the MFC Controller, in Example if i send:

WriteData[0].0:=TRUE;

Opens the Valve and a FALSE close this.

 

Now my Problem is, I need to set the Flowpoint. How I Can Use 0x0001  Bit 1..16 like below (WriteData[0].0:=TRUE; OR WriteData[0]:=1234)

Or Read in Example the ThermalMassFlowRate 0x0001 bit 1..16 (ReadData[1]:=XXXXXX) ?

 

Edited 19 Jun 2018 by Levent1970