Allen-Bradley GuardLogix 5570

Rockwell Automation Publication 1756-UM022D-EN-P - May 2017 25
Install the Controller Chapter 2
Make Sure That You Have All
of the Components
Before you begin, check to make sure you have all of the components you need.
These parts are included with the primary controller and safety partner.
The following optional equipment can be used.
IMPORTANT You must use a primary controller and a safety partner to achieve SIL 3/
PLe.
Cat. No. Description Ships with
1756-L71S
1756-L72S
1756-L73S
Primary controller • 1756-ESMCAP capacitor-based energy storage module (ESM)
• 1784-SD1 SD memory card, 1 GB
• 1747-KY key
1756-L7SP Safety partner • 1756-SPESMNSE energy storage module (ESM)
1756-L73SXT Extreme temperature
primary controller
• 1756-ESMCAPXT capacitor-based energy storage module (ESM)
• 1747-KY key
1756-L7SPXT Extreme temperature
safety partner
• 1756-SPESMNSEXT capacitor-based energy storage module (ESM)
If your application requires Then use this part
Nonvolatile memory 1784-SD1 (1 GB) or 1784-SD2 (2 GB)
That the installed ESM depletes its residual stored
energy to 200 μJ or less before transporting it into
or out of your application
(1)
(1) For information about the hold-up time of the ESMs, see the section Estimate the ESM Support of the WallClockTime on
page 140.
1756-ESMNSE for the primary controller
1756-SPESMNSE for the safety partner
(2)
This ESM does not have WallClockTime backup power. Also,
you can only use this ESM with a 1756-L73S (8 MB) or smaller
memory sized controller.
(2) For extreme temperature primary controller and safety partner use 1756-ESMNSEXT and 1756-SPESMNSEXT respectively.
ESM that secures the controller by preventing the
USB port and SD card use
(1)
1756-ESMNRM for the primary controller
1756-SPESMNRM for the safety partner
(3)
This ESM provides your application an enhanced degree of
security.
(3) For extreme temperature primary controller and safety partner use 1756-ESMNRMXT and 1756-SPESMNRMXT respectively.