Rockwell Automation 8520-GUM 9/Series CNC Grinder Operation and Programming Manual Documentation Set - Manual (Page 278)

Communications
Chapter 9
9-18
6. Press the {VERIFY YES} softkey. To abort the verify operation,
press the {VERIFY NO} softkey.
(softkey level 4)
VERIFY
YES
VERIFY
NO
The control displays one of the following messages when you perform the
verify operation:
“PROGRAMS ARE DIFFERENT” if programs do not match.
“PROGRAMS ARE IDENTICAL” if programs match.
An error occurs if you attempt these operations:
output data to an input device (tape reader, etc.)
output or input data when no peripheral device is connected to the
selected port
output or input data when the data communication line is either broken
or not connected
input data from an output device (tape punch, etc.)
input a program name that already exists in control memory. The
control displays “OVERWRITE PROGRAM IN MEMORY(Y/N):”
input a program without reading in or typing in a filename when AUTO
FILENAME is set to “no”
END OF CHAPTER
9.5
Error Conditions (Inputting
and Outputting Part
Programs)