Rockwell Automation Publication 1769-UM021I-EN-P - May 2018 49
Install the CompactLogix 5370 L2 Controller Chapter 3
• You must terminate the end of the CompactBus via a 1769-ECR right
end cap as shown in step 6 on page 59
.
• You cannot remove nor install Compact I/O modules while the
controller is powered.
CompactLogix 5370 L2 Controller Parts
These parts are included in the box when you order your controller:
• Controller - Specific catalog number varies by order
• 1769-ECR Compact I/O end cap/terminator
• 1784-SD1 Secure Digital (SD) card with 1 GB of memory storage
A 1784-SD2 SD card with 2 GB of memory storage, or more1784-SD1
SD cards, are also available if you need extra memory.
ATTENTION: CompactLogix 5370 L2 control systems do not support
removal and insertion under power (RIUP). Removing a 1769
Compact I/O module or end cap generates a controller fault and may
also result in damage to system components.
IMPORTANT The life expectancy of nonvolatile media is dependent on the
number of write cycles that are performed. Nonvolatile media use a
wear leveling technique or technology for prolonging the service
life, but avoid frequent writes.
Avoid frequent writes when logging data. We recommend that you
log data to a buffer in the memory of your controller and limit the
number of times data is written to removable media.
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