Memory options – Rockwell Automation 1756-L6x_L7x ControlLogix System User Manual User Manual

Page 83

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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-L7x 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.

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