Allen-Bradley 1756-L63XT, User Manual

Page: 83 / 212

Rockwell Automation Publication 1756-UM001O-EN-P - October 2014 83
ControlLogix System and Controllers Chapter 4
Memory Options
The ControlLogix controller is available in different combinations of user
memory. Use
Table 11 to determine which controller meets your memory
requirements.
.
Table 11 - ControlLogix Controller Memory Options
Controller Memory for Data and Logic I/O Back-up Memory
1756-L61 2 MB 478 KB CompactFlash card
(1)
(1) These nonvolatile memory cards are optional and do not come with the controller.
1756-L62 4 MB
1756-L63, 1756-L63XT 8 MB
1756-L64 16 MB
1756-L65 32 MB
1756-L71 2 MB 0.98 MB (1006 KB) SD card
1756-L72 4 MB
1756-L73, 1756-L73XT 8 MB
1756-L74 16 MB
1756-L75 32 MB
IMPORTANT
The 1756-L7 x controllers ship with an SD card installed. We recommend that
you leave the SD card installed, so if a fault occurs, diagnostic data is
automatically written to the card and Rockwell Automation can use the data to
troubleshoot the anomaly.
IMPORTANT
We recommend that you use the SD cards available from Rockwell Automation
(catalog numbers 1784-SD1 or 1784-SD2).
While other SD cards can be used with the controller, Rockwell Automation has
not tested the use of those cards with the controller. If you use an SD card other
than those cards that are available from Rockwell Automation, you can
experience data corruption or loss.
Also, SD cards that are not provided by Rockwell Automation can have different
industrial, environmental, and certification ratings as those cards that are
available from Rockwell Automation and can have difficulty with survival in
the same industrial environments as the industrially rated versions available
from Rockwell Automation.