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Select Modify Properties (Machine menu) from the menubar of a Machine icon, and click on the Control tab to display this dialog:
If you selected Use Wizard to Modify, you will see the appropriate dialog for the Wizard instead of this tabbed dialog. All of the parameters will be available, either directly or through the Advanced button.
Here and elsewhere in the documentation, the term control refers to the Comms definition of a controller’s parameters. A controller is the hardware and software associated with a machine tool that interprets incoming (or outgoing) program information into physical movement by the machine tool.
The Control dialog allows you to configure the Comms task corresponding to the protocol selected on the Protocol dialog. The options on this dialog are only available when the protocol is Standard, ACK/NAK, Paper Tape, or a custom Comms task.
Many parameters and options will have been set by your choice of Control type in the Machine tab dialog.
The Header, Trailer, and Interblock are used within the Comms Tasks that perform the transmit or receive operations. Different strings can be used for transmit and receive operations.
Click on the 
button to display this menu of options:
Header - Strings that are to be sent before the program.
Trailer - Strings that are to be sent after the program.
Note that the Header and Trailer strings should include the Interblock characters if this is required by the control. If the Header or Trailer string requires the '*' character, use '<42>' instead.
See Specifying Multiple Characters and Specifying Response Strings for further details.
Save on Receive - Check this box to save the Header/Trailer strings to the received file.
Interblock - Strings that are to be sent after each line of the program.
These strings can consist of ordinary ASCII characters or control characters (using the ^letter convention; for example '^J') or the mnemonic strings (for example, '<LF>').
See Characters and Strings Used in Comms for further details.
Different on Transmit - Check this box to enable the Transmit section. This allows you to specify a different Header and Trailer for the transmit operation.
TV Check - Check this box to enable testing the file transmission checksum (which is assumed to be positive). If the transmission fails the test, a warning is displayed. This feature is usually only available on Fanucs.
NULL Translation - This controls the way NULL characters are treated when they are received. The drop-down menu gives the following options:
|
<None> |
No translation occurs |
|
<Ignore> |
NULL characters are removed from the data. |
|
<Space> |
NULL characters are replaced by space characters. |
|
User defined |
Type a character to replace NULL characters as they are received. Characters can be specified as ASCII, control characters or mnemonics. When you save the machine configuration, control characters are saved as mnemonics. |
Translate on Transmit - Check this box to reverse the translation when characters are transmitted. For example, if the space character replaces a received NULL on input, a space character in the file will be replaced by a NULL on output.
Add man-readable message - This is only enabled if the protocol is Paper Tape. Checking this box enables you to enter an additional message. This message is punched out in man-readable form on the tape leader.