Rockwell Automation 2708-DH5B2L_DH5B4L Attended Workstation - Manual (Page 82)

Chapter 8
Host Communications
8–7
> > A – Abort Currently Running A-B VBASIC Program
Terminates the program which is currently running on the workstation. This
will also generate an error message back to the Host which says: “BASIC
Error: Operator Abort xxxx: yymmddhhmmss”, where xxxx is the address at
which the program was aborted.
> > G – Restart an Aborted BASIC Program
A program which has been aborted using the > > A network directive can be
restarted with this command. The program is restarted at the beginning, and
all variables can be assumed to be re-initialized.
> A – Abort Test
Allows the Host program to terminate the network performance test initiated
by the B command (described next).
> C – Send Text Out Comm Port
Causes the text which follows the command to be sent out the
communications port of the destination workstation. If the symbol “&”
appears first in the text, no carriage return will be output.
Note: Control codes cannot be directly sent, only printable characters.
However, a backslash ( \ ) is converted to a carriage return, a grave accent
( ’ ) is converted into an escape, and an up arrow ( ^ ) is converted into a
linefeed.
Directive: > C text
Action: text specified is sent out comm port of destination workstation.
> c – Send Text Out Aux Comm Port
Same as > C except it uses the aux comm port.
> D – Display Text on Front Panel
Causes the specified text to appear on the front panel displayof the indicated
workstation. If the symbol “&” is the first character of the text, the display is
not cleared prior to displaying the text.
Directive: > D text
Action: text specified is displayed on front panel of workstation.
Note: Control codes cannot be directly sent, only printable characters;
however a grave accent (’) is converted into an ESC.
Network Directives (cont’d)