processor module 1756-L72

Digital I/O max 128,000
Analog I/O max 4000
Total I/O max 128,000
Optional nonvolatile memory storage 2 GB Secure Digital Card (1784-SD2), ships pre-installed in the controller(1)
(1) Larger versions may be available. See ControlLogix Controller Accessories on page 48.
Energy storage module Embedded in controller, nonremovable
Number of power cycles 80,000
Current draw @ 1.2V DC 5.0 mA
Current draw @ 5.1V DC 1.20 A
Power dissipation 6.2 W
Thermal dissipation 21.2 BTU/hr
Residual Stored Energy Not Applicable Depletes to 400 µJ in 40 seconds
Isolation voltage 50V (continuous), Basic Insulation type, USB port to backplane, Ethernet port to backplane, and USB port to Ethernet port
Compliant and tested according to IEC/UL 61010-1
Weight approx 0.394 kg (.868 lb)
Slot width 1
Module location Chassis-based, any slot
Chassis 1756-A4, 1756-A4K, 1756-A7, 1756-A7K, 1756-A10, 1756-A10K, 1756-A13, 1756-A13K, 1756-A17, 1756-A17 K Series B, Series C
Power supply, standard 1756-PA50, 1756-PA72, 1756-PA72K, 1756-PA75, 1756-PA75K, 1756-PB50, 1756-PB72, 1756-PB72K, 1756-PB75, 1756-PB75K, 1756-PH75,
1756-PC75
Power supply, redundant 1756-PA75R, 1756-PA75RK, 1756-PB75R, 1756-PB75RK, 1756-PSCA2, 1756-PSCA2K
Wire category(2)
(2) Use this conductor category information to plan conductor routing. See Industrial Automation Wiring and Grounding Guidelines, publication 1770-4.1.
3 – on USB port
2 – on Ethernet ports
Wire size Ethernet connections:
Ethernet cabling and installation according to IEC 61918 and IEC 61784-5-2
North American temperature code T4
ATEX temperature code T4
IECEx temperature code T4
Enclosure type rating None (open-style)