Rockwell Automation 1775-MX_S4A,D17756.3.1 User Manual PLC-3 BACKUP CONC(OR.DU1 User Manual
Page 56
Using the 1775ĆMX
Memory Communication Module
Chapter 4
4-9
Important: Timers and counters cannot be separated into control, preset,
and accumulated value for the purpose of file transfers. In addition,
pointers cannot be separated into section, file, and word. Therefore, no file
number is necessary (although you can specify file 0). For example, to add
the timer section to the fifth position in the list, the counter section to the
sixth position, and the pointer section to the seventh position in the list,
type:
5/T
or
5/T0 [ENTER]
6/C
or
6/C0 [ENTER]
7/P
or
7/P0 [ENTER]
Important: Changes to the file list do not become effective until you
reselect the FILE TRANSFER function. This helps prevent deleting a file
by mistake. To delete a file, use the following procedure:
1.
To delete the third file, for example, type:
3 [ENTER]
2.
Move back to the MCM OPERATION menu by pressing:
[ENTER]
3.
To make the change effective, type:
2 [ENTER]
Now, the third file on the file list has been deleted.
CAUTION: To guard against damage to equipment, make sure
there is sufficient memory available in the backup processor to
accommodate the files when the memory communication
module (1775-MX) executes a file transfer. If not enough
memory is available, the backup processor will shut down.