Controllers
ControlLogix Controllers Overview
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The ControlLogix controller provides a scalable controller solution that is capable of addressing a large amount of I/O points.
The controller can be placed into any slot of a ControlLogix I/O chassis and multiple controllers can be installed in the same chassis. Multiple controllers in the same chassis communicate with each other over the backplane (just as controllers can communicate over networks) but operate independently.
ControlLogix controllers can monitor and control I/O across the ControlLogix backplane, as well as over I/O links. ControlLogix controllers can communicate over EtherNet/IP, ControlNet, DeviceNet, DH+, Remote I/O, and RS-232-C (DF1/DH-485 protocol) networks and many third party process and device networks. To provide communication for a ControlLogix controller, install the appropriate communication interface module into the chassis.
Available controllers include: ControlLogix standard controllers, GuardLogix safety controllers, and ControlLogix-XT extreme environment controllers.
Environmentals and Certifications
ControlLogix Controllers Environmental Specifications
| ControlLogix Controllers | GuardLogix Controllers | ControlLogix-XT Controllers | |
| Operating temperature |
0…60 °C (32…140 °F) | 0…60 °C (32…140 °F) | -25…70 °C (-13…158 °F) |
| Storage temperature |
-40…85 °C (-40…185 °F) | -40…85 °C (-40…185 °F) | -40…85 °C (-40…185 °F) |
| Relative humidity |
5…95% noncondensing | 5…95% noncondensing | 5...95% noncondensing |
| Vibration |
2 g at 10…500 Hz | 2 g at 10…500 Hz | 2 g at 10…500 Hz |
| Operating shock |
30 g | 30 g | 30 g |
| Nonoperating shock |
50 g | 50 g | 50 g |
ControlLogix Controllers Certifications
Certifications: UL, c-UL-us, CE, CSA, C-Tick, FM, ATEX, certified by TÜV for functional safety.
When product is marked. See the Product Certification link at www.ab.com for Declarations of Conformity, Certificates, and other certification details. For safety and SIL certification details, see the Safety Certifications and SIL link.
Standard ControlLogix Controllers
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The ControlLogix controller is part of the Logix5000 family of controllers. A ControlLogix system includes:
- the ControlLogix controller, available in different combinations of user memory.
- RSLogix 5000 programming software.
- 1756 ControlLogix I/O modules that reside in a 1756 chassis.
- separate communication modules for network communications
- a built-in serial port on every ControlLogix controller.
Features
| Feature | 1756-L61, 1756-L62, 1756-L63, 1756-L64, 1756-L65 | |
| Controller tasks | • 32 tasks • 100 programs/task • Event tasks: all event triggers |
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| Built-in communication ports | 1 port RS-232 serial | |
| Communication options | • EtherNet/IP • ControlNet • DeviceNet |
• Data Highway Plus • Remote I/O • SynchLink • Third-party process and device networks |
| Serial port communications | • ASCII • DF1 full/half-duplex • DF1 radio modem |
• DH-485 • Modbus via logic |
| Controller connections supported, max | 250 | |
| Network connections, per network module | • 100 ControlNet (1756-CN2/A) • 40 ControlNet (1756-CNB) |
• 256 EtherNet/IP; 128 TCP (1756-EN2x) • 128 EtherNet/IP; 64 TCP (1756-ENBT) |
| Controller redundancy | Full support | |
| Integrated motion | SERCOS interface | Analog options: • Encoder input • LDT input • SSI input |
| Programming languages | • Relay ladder • Structured text |
• Function block • SFC |
ControlLogix Standard Controllers
Specifications [PDF]
| Cat. No. | User Memory |
| 1756-L61 | 2 MB |
| 1756-L62 | 4 MB |
| 1756-L63 | 8 MB |
| 1756-L64 | 16 MB |
| 1756-L65 | 32 MB |
ControlLogix-XT Controllers
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The ControlLogix-XT controllers function in the same way as the traditional ControlLogix controllers. The ControlLogix-XT products include control and communication system components that, when used with FLEX I/O-XT products, provide a complete control system solution that can be used in environments where temperatures range from -20...70 °C (-4...158 °F).
When used independently, the ControlLogix-XT system can withstand environments where the temperature ranges from -25...70 °C (-13...158 °F).
Features
| Feature | 1756-L63XT | |
| Controller tasks | • 32 tasks • 100 programs/task • Event tasks: all event triggers |
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| Built-in communication ports | 1 port RS-232 serial | |
| Communication options | • EtherNet/IP • ControlNet • DeviceNet |
• Data Highway Plus • Remote I/O • SynchLink • 3rd party process and device networks |
| Serial port communications | • ASCII • DF1 full/half-duplex • DF1 radio modem |
• DH-485 • Modbus via logic |
| Controller connections supported, max | 250 | |
| Network connections, per network module | • 100 ControlNet (1756-CN2/A) • 40 ControlNet (1756-CNB) |
• 256 EtherNet/IP; 128 TCP (1756-EN2x) • 128 EtherNet/IP; 64 TCP (1756-ENBT) |
| Controller redundancy | Full support | |
| Programming languages | • Relay ladder • Structured text |
• Function block • SFC |
ControlLogix-XT Controllers
Specifications [PDF]
| Cat. No. | User Memory |
| 1756-L63XT | 8 MB |
GuardLogix Controllers
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A GuardLogix controller is a ControlLogix processor that also provides safety control. The GuardLogix system is a dual processor solution — you must use a 1756-L6xS primary controller and a 1756-LSP safety partner to Achieve SIL 3 and Cat. 4/PLe. A major benefit of this system is that it’s still a single project, safety and standard together. The safety partner controller is a part of the system, is automatically configured, and requires no user setup.
During development, safety and standard have the same rules, multiple programmers, online editing, and forcing are all allowed. Once the project is tested and ready for final validation, you set the Safety Task to a SIL 3 integrity level, which is then enforced by the GuardLogix controller. When safety memory is locked and protected, the safety logic can't be modified and all safety functions operate with SIL 3 integrity. On the standard side of the GuardLogix controller, all functions operate like a regular Logix controller. Thus online editing, forcing, and other activities are all allowed.
With this level of integration, safety memory can be read by standard logic and external devices, like HMIs or other controllers, eliminating the need to condition safety memory for use elsewhere. The result is easy system-wide integration and the ability to display safety status on displays or marquees. Use Guard I/O modules for field device connectivity on Ethernet or DeviceNet networks, and for safety interlocking between GuardLogix controllers use Ethernet or ControlNet networks. Multiple GuardLogix controllers can share safety data for zone to zone interlocking, or a single GuardLogix controller can use remote distributed safety I/O between different cells/areas.
For additional information see Safety Programmable Controllers, GuardLogix Integrated Safety System.
Features
In addition to the standard features of a ControlLogix controller, the GuardLogix controller has these safety-related features.
| Feature | 1756-L61S, 1756-L62S, 1756-L63S, 1756-LSP | |
| Safety communication options | Standard and safety • EtherNet/IP • ControlNet • DeviceNet |
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| Network connections, per network module | • 100 ControlNet (1756-CN2/A) • 40 ControlNet (1756-CNB) |
• 256 EtherNet/IP; 128 TCP (1756-EN2x) • 128 EtherNet/IP; 64 TCP (1756-ENBT) |
| Controller redundancy | Not supported | |
| Programming languages | Relay ladder | |
GuardLogix Controllers
Specifications [PDF]
| Cat. No. | Description | User Memory | |
| Standard Tasks and Components | Safety Task and Components | ||
| 1756-L61S | GuardLogix safety controller | 2 MB | 1 MB |
| 1756-L62S | 4 MB | 1 MB | |
| 1756-L63S | 8 MB | 3.75 MB | |
| 1756-LSP | GuardLogix safety partner (one is required for each GuardLogix controller) | — | — |
Redundant Controllers
The ControlLogix controller supports controller redundancy. In a redundant controller system, you need:
- Two 1756 chassis each with the same:
- number of slots
- modules in the same slots
- number of slots
- Redundancy firmware revisions in each module
- Two additional ControlNet nodes outside the redundant chassis pair
- And one of the following:
- one 1756-RM module per chassis and one 1756-RMCx cable, or
- one 1757-SRM module per chassis and one 1757-SRCx cable
- one 1756-RM module per chassis and one 1756-RMCx cable, or
ControlLogix Redundancy Modules
Specifications [PDF]
| Cat. No. | Description | Controllers Supported | Communication Modules Supported |
| 1756-RM | ControlLogix redundancy module | • two 1756-L61, 1756-L62, 1761-L63 controllers or • one 1756-L64 controller |
seven, max (1756-CN2 series B, 1756-CN2R series B, or 1756-EN2T modules) |
| 1757-SRM | one 1756-L61, 1756-L62, 1756-L63, 1756-L64 controller | seven, max (1756-CNB series D or E, 1756-CNBR series D or E, 1756-ENBT, or 1756-EWEB modules) | |
Connector Cables
| Cat. No. | Description | Length |
| 1756-RMC1 | Cable, 1756-RM redundancy module | 1 m (3.28 ft) |
| 1756-RMC3 | 3 m (9.84 ft) | |
| 1756-RMC10 | 10 m (32.81 ft) | |
| 1757-SRC1 | Cable, 1757-SRM redundancy module | 1 m (3.28 ft |
| 1757-SRC3 | 3 m (9.84 ft) | |
| 1757-SRC10 | 10 m (32.81 ft) | |
| 1757-SRC50 | 50 m (164.04 ft) | |
| 1757-SRC100 | 100 m (328.08 ft) | |
Accessories—Controllers
Industrial CompactFlash Cards
CompactFlash cards offer nonvolatile memory (flash) to permanently store a user program and tag data on a ControlLogix controller. You install the 1784 CompactFlash card in a socket on the controller. You can manually trigger the controller to save to or load from nonvolatile memory or configure the controller to load from nonvolatile memory on power up.
The GuardLogix controller does not support user program storage or retrieval by using a CompactFlash card.
| Attribute | 1784-CF64 | 1784-CF128 |
| Memory | 64 MB | 128 MB |
| Weight, approx. | 14.2 g (0.5 oz) | |
Replacement Batteries
Each ControlLogix controller ships with a battery. The 1756-L6x controllers have nonvolatile memory if you install a 1784-CF64 or 1784-CF128 industrial CompactFlash card. With nonvolatile memory, the controller can be used without a battery. If you do not use a battery, current tag data will be at the state it was when the nonvolatile memory was saved.
| Attribute | 1756-BA1 | 1756-BA2 | 1756-BATM¬ | 1756-BATA |
| Description | Lithium battery (0.59 g) | Lithium battery (0.59 g) | Externally mounted battery assembly | Replacement lithium battery for 1756-BATM (5 g max lithium per each D cell; contains 2 D cells) |
| ControlLogix controllers | 1756-L61, 1756-L62, 1756-L63 controllers, series A | 1756-L61, 1756-L62, 1756-L63 controllers, series B 1756-L64, 1756-L65 controllers |
1756-L61, 1756-L62, 1756-L63 controllers,series A | 1756-BATM battery module |
| GuardLogix controllers | — | 1756-L61S, 1756-L62S, 1756-L63S | — | — |
| ControlLogix-XT controllers | — | 1756-L63XT | — | — |
| ¬ The 1756-BATM externally mounted battery assembly is highly recommended for use with all series A 1756-L6x controllers and provides longer battery life than the 1756-BA1 battery. The 1756-BATM includes one 1756-BATA lithium battery assembly and a 1 m (3.28 ft) cable to connect housing to controller. | ||||