- 2 MB user memory and 1 MB safety memory for the GuardLogix 5570 platform
- Requires a 1756-L7SP safety partner in the immediately adjacent right-hand slot
- Ships with 1784-SD1 storage and a 1756-ESMCAP energy-storage module
1756-L71S is the lower-memory GuardLogix 5570 safety controller for applications requiring 2 MB user memory and 1 MB safety memory.
The controller and 1756-L7SP operate as a matched safety pair; their major and minor firmware revisions must match.
Preserve the safety signature, validated project and SD-card image, then confirm partner placement and energy-storage-module status before replacement.
Availability, condition, price, and shipping time for 1756-L71S are confirmed during quotation.
Allen-Bradley 1756-L71S GuardLogix Controller Manuals and Product Links
Important Notice: Other accessories, manuals, cables, calibration data, software, etc. are not included with this equipment unless listed in the above stock item description. All prices are shown in USD.
- xiUse a 1756-L7SP as the safety partner for 1756-L71S
- Install the partner immediately to the right of the primary controller
- Match the major and minor firmware revisions before safety operation
- A 1784-SD1 SD card ships installed and should normally remain in the controller
- The 1756-ESMCAP energy-storage module is the standard installed ESM
- 1756-L71S does not use the replaceable battery arrangement of older L6x controllers
- Verify the installed GuardLogix firmware against the approved safety project
- Keep the 1756-L7SP firmware at the same major and minor revision as 1756-L71S
- Review coordinated-motion requirements within the controller's published 100-axis capacity
- SIL 3 and Performance Level e machine-safety systems using a matched 1756-L7SP
- GuardLogix projects that fit within 2 MB user memory and 1 MB safety memory
- Distributed CIP Safety architectures using supported ControlLogix communication modules