SINUMERIK Device Commands

Sinumerik Control Driver offers several commands for file management.

Overview

Command Address	Description
OpenFileStream	Opens a dnc stream for reading or writing.
CloseFileStream	Closes a dnc stream
ReadFileStream	Reads from the dnc stream
WriteFileStream	Write to the dnc stream
GetFileStreamStatus	Gets the status of the dnc stream
DeleteFile	Deletes a file on the system.

Command Address	Description
CreateDirectory	Creates a new directory.
DeleteDirectory	Deletes a directory.
GetCurrentDirectory	Gets the current directory.
ChangeDirectory	Changes the current directory.
ReadDirectory	Reads the content of the directory.

Introduction to File Handling

The SINUMERIk uses different directories to store nc files, configurations and memory definitions (See Program Memory).

The root path starts with /. Each sub directory and the file is separated by an additional /.

Example: /_N_MPF_DIR/_N_PROG1_MPF

OpenFileStream

Opens the dnc stream for reading or writing depending on the AccessMode.

Address: OpenFileStream

Argument	Direction	Description	Data Type
Name	Input	Program or filename	System.String
AsyncToken	Input [OPT]	Token for async callback	System.Int32
AccessMode	Input	Access mode (Read or Write)	System.Int32
Handle	Output	File handle	System.Int32

See DNC Model - OpenFileStream for details on arguments and return values.

Example:

{
  "Id": "<generate your own id>",
  "Name": "OpenFileStream",
  "Type": "CommandNode",
  "Address": "OpenFileStream",
  "Arguments": [
    {
      "Name": "Name",
      "Type": "Input",
      "DataType": "System.String"
    },
    {
      "Name": "AccessMode",
      "Type": "Input",
      "DataType": "System.Int32"
    },
    {
      "Name": "Handle",
      "Type": "Output",
      "DataType": "System.Int32"
    }
  ]
}

CloseFileStream

Closes the dnc stream for reading or writing.

Address: CloseFileStream

Argument	Direction	Description	Data Type
AsyncToken	Input [OPT]	Token for async callback	System.Int32
Handle	Input	File handle	System.Int32

See DNC Model - CloseFileStream for details on arguments and return values.

Example:

{
  "Id": "5608D2DA-7CAF-416A-B31F-42DF706B9FD0",
  "Name": "CloseFileStream",
  "Address": "CloseFileStream",
  "ScriptFile": "",
  "Type": "CommandNode",
  "Arguments": [
    {
      "Name": "Handle",
      "DataType": "System.Int32",
      "Description": ""
    }
  ]
}

ReadFileStream

Reads from a dnc stream

Address: ReadFileStream

Argument	Direction	Description	Data Type
Handle	Input	File handle	System.Int32
MaxBytes	Input	Maximum number of bytes	System.Int32
Content	Output	Content	System.Byte[]
LastContent	Output	Flag is the last content has been sent.	System.Boolean

See DNC Model - ReadFileStream for details on arguments and return values.

Example:

{
  "Id": "C71D6C63-6EEF-4020-98CC-6F3085AF4478",
  "Name": "ReadFileStream",
  "Address": "ReadFileStream",
  "ScriptFile": "",
  "Type": "CommandNode",
  "Arguments": [
    {
      "Name": "Handle",
      "DataType": "System.Int32",
      "Description": ""
    },
    {
      "Name": "MaxBytes",
      "DataType": "System.Int32",
      "Description": ""
    },
    {
      "Name": "Content",
      "DataType": "System.Byte[]",
      "Type": "Output",
      "Description": ""
    },
    {
      "Name": "LastContent",
      "DataType": "System.Boolean",
      "Type": "Output",
      "Description": ""
    }
  ]
}

WriteFileStream

Writes to a dnc stream

Address: WriteFileStream

Argument	Direction	Description	Data Type
Handle	Input	File handle	System.Int32
Content	Input	Content	System.Byte[]

See DNC Model - WriteFileStream for details on arguments and return values.

Example:

{
  "Id": "5AAB615E-8663-4B9F-95E2-221317F65E3F",
  "Name": "WriteFileStream",
  "Address": "WriteFileStream",
  "ScriptFile": "",
  "Type": "CommandNode",
  "Arguments": [
    {
      "Name": "Handle",
      "DataType": "System.Int32",
      "Description": ""
    },
    {
      "Name": "Content",
      "DataType": "System.Byte[]",
      "Description": ""
    }
  ]
}

GetFileStreamStatus

Gets the status of the dnc stream

Address: GetFileStreamStatus

Argument	Direction	Description	Data Type
Handle	Input	Stream handle	System.Int32
Content	Output	Content (JSON formatted)	System.String

See DNC Model - GetFileStreamStatus for details on arguments and return values.

Example:

{
  "Id": "5AAB615E-8663-4B9F-95E2-221317F65E3F",
  "Name": "GetFileStreamStatus",
  "Address": "GetFileStreamStatus",
  "ScriptFile": "",
  "Type": "CommandNode",
  "Arguments": [
    {
      "Name": "Handle",
      "DataType": "System.Int32",
      "Description": ""
    },
    {
      "Name": "Content",
      "DataType": "System.String",
      "Type": "Output",
      "Description": ""
    }
  ]
}

DeleteFile

Deletes a specific nc file within the selected Nc directory.

Address: DeleteFile

Argument	Direction	Description	Data Type
Name	Input	Program or filename	System.String

Example:

{
  "Id": "<generate your own id>",
  "Name": "DeleteFile",
  "Type": "CommandNode",
  "Address": "DeleteFile",
  "Arguments": [
    {
      "Name": "Name",
      "Type": "Input",
      "DataType": "System.String",
      "Description": "Program Name"
    }
  ]
}

MakeDirectory

Creates a sub directory.

Address: CreateDirectory

Argument	Direction	Description	Data Type
Name	Input	Directory name	System.String

Example:

{
  "Id": "<generate your own id>",
  "Name": "MakeDirectory",
  "Type": "CommandNode",
  "Address": "CreateDirectory",
  "Arguments": [
    {
      "Name": "Name",
      "Type": "Input",
      "DataType": "System.String"
    }
  ]
}

DeleteDirectory

Deletes a sub directory within the selected Nc directory.

Address: DeleteDirectory

Argument	Direction	Description	Data Type
Name	Input	Directory name	System.String

Example:

{
  "Id": "<generate your own id>",
  "Name": "DeleteDirectory",
  "Type": "CommandNode",
  "Address": "deleteDirectory",
  "Arguments": [
    {
      "Name": "Name",
      "Type": "Input",
      "DataType": "System.String"
    }
  ]
}

GetCurrentDirectory

Gets the current directory of the Nc.

Address: GetCurrentDirectory

Argument	Direction	Description	Data Type
Name	Output	Directory name	System.String

Example:

{
  "Id": "<generate your own id>",
  "Name": "GetCurrentDirectory",
  "Type": "CommandNode",
  "Address": "GetCurrentDirectory",
  "Arguments": [
    {
      "Name": "Name",
      "Type": "Output",
      "DataType": "System.String"
    }
  ]
}

SetCurrentDirectory

Sets the current directory of the Nc.

Address: Nc{n}.ChangeDirectory

Argument	Direction	Description	Data Type
Name	Input	Directory name	System.String

Example:

{
  "Id": "<generate your own id>",
  "Name": "SetCurrentDirectory",
  "Type": "CommandNode",
  "Address": "ChangeDirectory",
  "Arguments": [
    {
      "Name": "Name",
      "Type": "Input",
      "DataType": "System.String"
    }
  ]
}

ReadDirectory

Reads a directory content from the file system. The content is returned in a JSON format.

Address: ReadDirectory

Argument	Direction	Description	Data Type
Name	Input	directory name. If empty, the current directory is returned.	System.String
Content	Output	JSON formatted directory content	System.String

Example from a device info file:

{
  "Id": "<generate your own id>",
  "Name": "ReadDirectory",
  "Type": "CommandNode",
  "Address": "ReadDirectory",
  "Arguments": [
    {
      "Name": "Name",
      "Type": "Input",
      "DataType": "System.String",
      "Description": "Directory Name"
    },    
    {
      "Name": "Content",
      "Type": "Output",
      "DataType": "System.String",
      "Description": "Directory Content"
    }
  ]
}