Allen Bradley ControlLogix System 1756 Series Catalog Numbers

ControlLogix System Overview

The ControlLogix system provides discrete, drives, motion, process, and safety control together with communication and state-of-the-art I/O in a small, cost-competitive package. The system is modular, so you can design, build, and modify it efficiently with significant savings in training and engineering.

ControlLogix System

A simple ControlLogix system consists of a standalone controller and I/O modules in one chassis. For a more comprehensive
system, use the following:
• Multiple controllers in one chassis
• Multiple controllers joined across networks
• I/O in multiple platforms that are distributed in many locations and connected over multiple I/O links

ControlLogix System

ControlLogix-XT System

ControlLogix-XT™ (Extended Temperature) controllers function the same way as traditional ControlLogix controllers with an
extended temperature range. The ControlLogix-XT products include control and communication system components that
are conformally coated to extend product life in harsh, corrosive environments:
• The standard ControlLogix system can withstand temperature ranges from 0…60 °C (33…140 °F).
• When used independently, the ControlLogix-XT system can withstand temperature ranges from -25…+70 C
(-13…+158 F).

Redundant ControlLogix System

The 1756-L7 ControlLogix controller supports controller redundancy

Redundant ControlLogix System

Redundant I/O System

The 1715 redundant I/O system lets a 1756-L7 ControlLogix controller communicate to a remote, redundant I/O chassis over
an EtherNet/IP network. The 1715 redundant I/O system provides fault tolerance and redundancy for critical processes by
using a redundant adapter pair and redundant I/O module pairs.
The redundant I/O system must be connected to a 1756-L7 ControlLogix system via an EtherNet/IP network. All connections
are established via the Ethernet network by using the topologies that the 1756-EN2TR communication bridge supports.

Redundant I/O System

GuardLogix Safety System

A GuardLogix controller is a ControlLogix controller that also provides safety control. The GuardLogix system is a dual
controller solution—you must use a GuardLogix controller with the appropriate safety partner to achieve SIL 3/PLe/Cat. 4.
A major benefit of this system is that it is still one project, safety and standard together. The safety partner controller is a part
of the system, is automatically configured, and requires no user setup.

GuardLogix Safety System

Armor ControlLogix and Armor GuardLogix Systems

On-Machine™ standard and safety controllers support the same temperature range of ControlLogix, while offering global
certifications and ratings, and Ingress Protection (IP67) for dust and wash-down protection for immersion between
15 cm…1 m (5.91…393.70 in.) in harsher environments.

Armor ControlLogix and Armor GuardLogix Systems

ControlLogix I/O Modules

The ControlLogix architecture provides a wide range of input and output modules to span many applications, from highspeed
digital to process control. The ControlLogix architecture uses a Producer/Consumer model so that input information
and output status can be shared among multiple controllers.
Each ControlLogix I/O module mounts in a ControlLogix chassis and requires a removable terminal block (RTB) or a 1492
interface module (IFM) to connect all field-side wiring. RTBs and IFMs are not included with the I/O modules. They must be
ordered separately.
For detailed specifications, see 1756 ControlLogix I/O Modules Specifications Technical Data, publication 1756-TD002.

AC Digital Input Modules

Cat. No. Inputs/Outputs Voltage Category Operating Voltage Range Removable Terminal Block
1756-IA8D 8 diagnostic inputs
(4 points/group)
120V AC 79…132V AC 1756-TBNH
1756-TBSH
756-IA16 16 inputs
(8 points/group)
120V AC 74…132V AC 1756-TBNH
1756-TBSH
1756-IA16I 16 individually isolated inputs 120V AC 74…132V AC 1756-TBCH
1756-TBS6H
1756-IA32 32 inputs
(16 points/group)
120V AC 74…132V AC 1756-TBCH
1756-TBS6H
1756-IM16I 16 individually isolated inputs 240V AC 159…265V AC 1756-TBCH
1756-TBS6H
1756-IN16 16 inputs
(8 points/group)
24V AC 10…30V AC 1756-TBNH
1756-TBSH

DC Digital Input Modules

Cat. No Inputs/Outputs Voltage Category Operating Voltage Range Removable Terminal Block
1756-IB16 16 inputs
(8 points/group)
12/24V DC sink 10…31.2V DC 1756-TBNH
1756-TBSH
1756-IB16D 16 diagnostic
inputs (4 points/group)
12/24V DC sink 10…30V DC 1756-TBCH
1756-TBS6H
1756-IB16I 16 individually isolated inputs 12/24V DC sink/source 10…30V DC 1756-TBCH
1756-TBS6H
1756-IB16IF 16 high-speed, individually
isolated inputs
12/24V DC sink/source 10…30V DC 1756-TBCH
1756-TBS6H
1756-IB16ISOE 16 individually isolated,
sequence of events inputs
24/48V DC sink/source 10…55V DC 1756-TBCH
1756-TBS6H
1756-IB32 32 inputs (16 points/group) 12/24V DC sink 10…31.2V DC 1756-TBCH
1756-TBS6H
1756-IC16 16 inputs (8 points/group) 48V DC sink 30…55V DC @ 60 °C (140 °F)
30…60V DC @ 55 °C (131 °F)
1756-TBNH
1756-TBSH
1756-IG16 16 inputs (8 points/group) 5V DC TTL source 4.5…5.5V DC 1756-TBNH
1756-TBSH
1756-IH16I 16 individually isolated inputs 125V DC sink/source 90…146V DC 1756-TBCH
1756-TBS6H
1756-IH16ISOE 16 individually isolated,
sequence of events inputs
125V DC sink/source 90…140V DC 1756-TBCH
1756-TBS6H
1756-IV16 16 inputs (8 points/group) 12/24V DC source 10…30V DC 1756-TBNH
1756-TBSH
1756-IV32 32 inputs (16 points/group) 12/24V DC source 10…30V DC 1756-TBCH
1756-TBS6H

Accessories—I/O Modules

1756 Removable Terminal Blocks Removable terminal blocks (RTBs) provide a flexible interconnection between your plant wiring and 1756 I/O modules. The RTB plugs into the front of the I/O module. The type of module determines the RTB you need. You can choose screw-clamp or spring-clamp RTBs.


RTBs are not shipped with I/O modules. You must order them separately. The standard housing on the front of the wiring arm is not necessarily deep enough for 2.5 mm2
(14 AWG) wiring. If you plan to use 2.5 mm2 (14 AWG) wiring, also order the extended housing. For more information on Extended-Depth Housing, see Rockwell Automation Knowledgebase article #41488, Use of the 1756-TBE Extended Terminal Housing.

ControlLogix System

1756-l74
1766-MM1
1766-L32AWA

Product manuals

# File Description Date added File size Downloads
1 pdf ControlLogix System 1756 series Allen Bradley ControlLogix System 1756 Series Catalog Numbers
Allen Bradley ControlLogix System 1756 Series Catalog Numbers
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