User manual

22 Rockwell Automation Publication 1756-UM001O-EN-P - October 2014
Chapter 1 Install the 1756-L7x Controller
Parts Available for Use with the 1756-L7x Controller
You can choose to use the parts included with the controller and these parts
specific to your application.
.
1756-L7x Controller
Installation
These sections explain how to install the 1756-L7x controller. To install the
1756-L7x controller, complete the tasks summarized in this table.
IMPORTANT
The 1756-L7x controllers ship with an SD card installed. We recommend that
you leave the SD card installed.
If your application requires Then use this part
USB connection from a computer to the controller USB cable
(1)
(1) The USB port is intended only for temporary local programming purposes and not intended for permanent connection. The USB
cable is not to exceed 3.0 m (9.84 ft) and must not contain hubs.
Nonvolatile memory 1784-SD1 (1 GB) or 1784-SD2 (2 GB)
ESM without WallClockTime back-up power 1756-ESMNSE
This ESM does not have WallClockTime back-up power.
Use this ESM if your application requires that the installed
ESM deplete its residual stored energy to 40 μJoule or less
before transporting it into or out of your application.
(2)
Additionally, you can use this ESM with only a 1756-L73
(8 MB) or smaller memory-sized controller.
(2) For information about the hold-up time of the ESMs, see Hold-up Time (in days) on page 72 and stored energy depletion rate on
page 29
.
ESM that secures the controller by blocking the USB
connection and SD card use
(2)
This ESM provides your application an enhanced degree of
security.
1756-ESMNRM
WARNING: Do not use the USB port in hazardous locations.
ATTENTION:
• The USB port is intended only for temporary local programming purposes and
not intended for permanent connection.
• The USB cable is not to exceed 3.0 m (9.84 ft) and must not contain hubs.
Task Page
Insert the Controller into the Chassis 23
Insert the Key 24
Remove the SD Card 26
Install the SD Card 25
Install the ESM 28
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