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+, Universal 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, L6 or L7 series, 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.
1756-L6 Controllers Offer:
- Built-in serial port
- 250 controller connections, max.
- Optional CompactFlash nonvolatile memory storage, 64 or 128 MB
1756-L7 Controllers Offer:
- Built-in USB port
- 500 controller connections, max.
- SDRAM nonvolatile memory storage; ships with 1784-SD1 Secure Digital card installed
- Energy Storage Module (ESM) eliminates the need for lithium batteries
- On-board display for controller diagnostics and run-time information
- Increased speed and processing capabilities for high-performance logic, motion, process, and redundancy applications
Features
| Feature | 1756-L6 Controllers | 1756-L7 Controllers |
| Controller tasks | • 32 tasks • 100 programs/task • Event tasks: all event triggers |
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| Built-in communication ports | 1 RS-232 serial port | 1 USB port |
| Serial port communications | • ASCII • DF1 full/half-duplex • DF1 radio modem • DH-485 • Modbus via logic |
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| Communication options | • EtherNet/IP • ControlNet • DeviceNet • Data Highway Plus • Remote I/O • SynchLink • Third-party process and device networks |
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| Controller connections supported, max | 250 | 500 |
| 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) |
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| Controller redundancy | Full support | |
| Integrated motion | • EtherNet/IP connection • SERCOS interface • Analog options ( Encoder input, LDT input, SSI input) |
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| Programming languages | • Relay ladder • Structured text • Function block • SFC |
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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 |
| 1756-L72 | 4 MB |
| 1756-L73 | 8 MB |
| 1756-L74 | 16 MB |
| 1756-L75 | 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) | — | — |
Accessories—Controllers
Memory Cards
Memory cards offer nonvolatile memory to permanently store a user program and tag data on a controller. The 1756-L7 ControlLogix controllers come with a 1784-SD1 Secure Digital card already installed. The 1756-L6 controllers support optional CompactFlash cards that you purchase separately. Through RSLogix 5000 software, you can manually trigger the controller to save to or load from nonvolatile memory or configure the controller to load from nonvolatile memory on powerup.
The GuardLogix controller does not support user program storage or retrieval by using a CompactFlash card.
| Attribute | 1784-CF64 | 1784-CF128 | 1784-SD1 | 1784-SD2 |
| Type | CompactFlash | Secure Digital | ||
| Memory | 64 MB | 128 MB | 1 GB | 2 GB |
| Supported controllers | ControlLogix L6 controllers | ControlLogix L7 controllers | ||
| Weight, approx. | 14.2 g (0.5 oz) | 1.76 g (0.062 oz) | ||
1756 Energy Storage Modules
Instead of a battery, the 1756-L7 controllers ship with a 1756-ESMCAP energy storage module (ESM) already installed. The ESM eliminates the need for a battery.
| Attribute | 1756-ESMCAP | 1756-ESMNSE | 1756-ESMNRM |
| Description | Capacitor-based Energy Storage Module | Energy storage module without WallClockTime back-up power | Nonremovable capacitor-based energy storage module |
| Use | Ships with the controller | Use this ESM if your application requires that the installed ESM deplete its residual energy to 200 mJoule or less before transporting it into or out of your application. Additionally, you can use this ESM with a 1756-L73 (8 MB) or smaller memory-sized controller only. | Secures the controller by preventing the USB connection and access to SD card removal. If the SD card is installed prior to insertion of the 1756-ESMNRM module, the SD card remains functional, but not removable. |
| Supported controllers | ControlLogix L7 controllers | ||
Replacement Batteries
Each ControlLogix controller ships with a battery. The 1756-L6 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 | — | — |
| Supported legacy controllers | 1756-L55Mx controllers‡ 1756-L60M03SE controller |
— | 1756-L55Mx controllers‡ 1756-L60M03SE controller |
1756-BATM battery module |
| ⋆ 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. ‡ The 1756-L55M22, 1756-L55M23, and 1756-L55M24 controllers have nonvolatile memory and can be used without a battery. |
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