Controllers
CompactLogix Controllers Overview
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The CompactLogix platform brings together the benefits of the Logix platform—common programming environment, common networks, common control engine—in a small footprint with high performance. Combined with Compact I/O modules, the CompactLogix platform is perfect for tackling smaller, machine-level control applications, with or without simple motion, with unprecedented power and scalability. A CompactLogix platform is ideal for systems that require standalone and system-connected control over EtherNet/IP, ControlNet, or DeviceNet networks.
For detailed specifications, see CompactLogix Controllers Specifications, publication 1769-TD005
| 1769-L23x Controllers | 1769-L3x Controllers | 1768-L4x Controllers | 1768-L4xS Controllers | |
| Controller application | Small applications Embedded I/O modules |
General purpose | Integrated motion | Integrated safety Integrated motion |
| Controller tasks | • 3 tasks • 16 programs/task (1 continuous) • Event tasks: consumed tag and EVENT instruction triggers |
4, 6, or 8 tasks (1 continuous) • Event tasks: consumed tag and EVENT instruction triggers |
• 16 tasks (1 continuous) • Event tasks: consumed tag, EVENT instruction, axis, and motion event triggers |
• 16 tasks (1 continuous) • Event tasks: consumed tag, EVENT instruction, axis, and motion event triggers |
| User memory | 512 KB | 512 kB to 1.5 MB | 2 MB or 3 MB | • 2 MB standard, 0.5 MB safety • 3 MB standard, 1 MB safety |
| Built-in communication port options | • 1 EtherNet/IP port, 1 RS-232 serial port • 2 RS-232 serial ports |
• 2 RS-232 ports • 1 ControlNet port, 1 RS-232 serial port • 1 EtherNet/IP port, 1 RS-232 serial port |
• 1 RS- 232 serial port | • 1 RS- 232 serial port |
| Communication options | • EtherNet/IP • DeviceNet |
• EtherNet/IP • ControlNet • DeviceNet |
• EtherNet/IP • ControlNet • DeviceNet |
• EtherNet/IP (standard and safety) • ControlNet (standard and safety) • DeviceNet (standard) |
Environmentals and Certifications
CompactLogix Controllers Environmental Specifications
| L23x Controllers | L3x Controllers | L4x Controllers | L4xS Controllers | |
| Operating Temperature | 0…60 °C (32…140 °F) | |||
| Nonoperating Temperature | -40…85 °C (-40…185 °F) | |||
| Relative Humidity | 5…95% noncondensing | |||
| Vibration | 2 g at 2…500 Hz | 5 g at 10…500 Hz | ||
| Operating Shock | 30 g | |||
| Nonoperating Shock | 50 g | |||
ComctLogix Controllers Certifications
Certifications: C-Tick, c-UL-us, CE, CI, EtherNet/IP, Ex, 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.
1769 Packaged Controllers with Embedded I/O
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The 1769-L23x CompactLogix system is a packaged controller for smaller, machine-level control applications. The controller comes preconfigured with combinations for embedded digital, analog, and high-speed counter I/O.
The 1769-L23x controller includes:
- a built-in power supply.
- either two serial ports or one serial and one EtherNet/IP port.
- a combination of embedded digital, analog, and high-speed counter I/O.
- a 1769-ECR right-end cap.
Characteristics
Specifications [PDF]
| Characteristic | 1769-L23-QBFC1B | 1769-L23E-QB1B | 1769-L23E-QBFC1B |
| User Memory | 512 kB | 512 kB | 512 kB |
| CompactFlash card | None | None | None |
| Communication Ports | 2 RS-232 serial ports (isolated DF1 or ASCII; nonisolated DF1 only) | 1 EtherNet/IP port 1 RS-232 port (DF1 or ASCII) |
1 EtherNet/IP port 1 RS-232 port (DF1 or ASCII) |
| Embedded I/O | • 16 DC inputs • 16 DC outputs • 4 analog inputs • 2 analog outputs • 4 high-speed counters |
• 16 DC inputs • 16 DC outputs |
• 16 DC inputs • 16 DC outputs • 4 analog inputs • 2 analog outputs • 4 high-speed counters |
| Module expansion capacity | Up to two additional 1769 modules |
Up to three additional 1769 modules |
Up to two additional 1769 modules |
| Embedded power supply | 24V DC | 24V DC | 24V DC |
1769 Modular Controllers
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The 1769-L3x CompactLogix system is a Logix solution for low-end to medium applications. Typically, these applications are machine-level control applications that require limited I/O quantities and limited communication capabilities.
The 1769-L3x CompactLogix system provides:
- a built-in RS-232 serial port on every L3x controller.
- built-in communication ports for EtherNet/IP or ControlNet networks.
- a 1769-SDN communication interface module for I/O control and remote device configuration over DeviceNet.
- Compact I/O modules providing a Compact, DIN-rail or panelmounted I/O system.
Characteristics
Specifications [PDF]
| Characteristic | 1769-L31 | 1769-L32C | 1769-L32E | 1769-L35CR | 1769-L35E |
| User Memory | 512 kB | 750 kB | 750 kB | 1.5 MB | 1.5 MB |
| CompactFlash card | • 1784-CF64 • 1784-CF128 |
• 1784-CF64 • 1784-CF128 |
• 1784-CF64 • 1784-CF128 |
• 1784-CF64 • 1784-CF128 |
• 1784-CF64 • 1784-CF128 |
| Communication Ports | 2 RS-232 ports (isolated DF1 or ASCII; non-isolated DF1 only) | 1 ControlNet port 1 RS-232 serial port (DF1 or ASCII) |
1 EtherNet/IP port: (DF1 or ASCII) 1 RS-232 port (DF1 or ASCII) |
1 redundant ControlNet port 1 RS-232 serial port (DF1 or ASCII) |
1 EtherNet/IP port: (DF1 or ASCII) 1 RS-232 port (DF1 or ASCII) |
| Module expansion capacity | 16 - 1769 Modules | 16 - 1769 Modules | 16 - 1769 Modules | 30 - 1769 Modules | 30 - 1769 Modules |
| Power supply distance rating | 4 modules | 4 modules | 4 modules | 4 modules | 4 modules |
1768 CompactLogix Controllers
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The 1768-L4x CompactLogix system combines a 1768 backplane for communication and motion support and a 1769 backplane for I/O support. The 1768 controller is designed for integrated motion and more complex communication requirements than the other CompactLogix controllers.
The 1768-L4x system provides
- both a 1768 backplane and a 1769 backplane.
- 1768 backplane support of the 1768 controller, the 1768 power supply, and a maximum of four 1768 modules.
- 1769 backplane support of a maximum of thirty 1769 I/O modules.
- one RS-232 serial port.
Characteristics
Specifications [PDF]
| Characteristic | 1768-L43 | 1768-L45 |
| User Memory | 2 MB | 3 MB |
| CompactFlash card | • 1784-CF64 • 1784-CF128 |
• 1784-CF64 • 1784-CF128 |
| Communication options | • EtherNet/IP • ControlNet • DeviceNet |
• EtherNet/IP • ControlNet • DeviceNet |
| Serial communication port | 1 RS-232 port | 1 RS-232 port |
| Module expansion capacity | • 2 - 1768 Modules • 16 - 1769 Modules |
• 4 - 1768 Modules • 30 - 1769 Modules |
| Power supply distance rating | — | — |
| Programming languages | • Relay ladder • Structured text • Function block • Sequential function chart |
• Relay ladder • Structured text • Function block • Sequential function chart |
1768 GuardLogix Controllers
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The Compact GuardLogix controller is a 1768-L4xS CompactLogix controller that provides safety control up to and including SIL 3 according to IEC 61508, and applications up to and including PLe/Cat.4 according to ISO 13849-1.
Safety and standard tasks have the same rules during project development—multiple programmers, online editing, and forcing are all allowed. Once the project is tested and ready for final validation, the Safety Task is set to SIL 3, which is then enforced by the GuardLogix controller. When safety memory is locked and protected, the safety logic cannot be modified and all safety functions operate with SIL 3. 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.
Ethernet or ControlNet networks can be used for safety interlocking between GuardLogix controllers. 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. Field device connectivity can be established over Ethernet or DeviceNet networks.
For additional information on GuardLogix refer to GuardLogix Integrated Safety System.
1768 GuardLogix Features
The 1768-L4xS system provides
- both a 1768 backplane and a 1769 backplane.
- 1768 backplane support of the 1768 controller, the 1768 power supply, and a maximum of four 1768 modules.
- 1769 backplane support of up to thirty 1769 modules.
- one RS-232 serial port.
- Safety Integrity Level 3 (SIL 3) protection.
Characteristics
Specifications [PDF]
| Characteristic | 1768-L43S | 1768-L45S |
| User Memory | 2 MB standard 0.5 MB safety |
3 MB standard 1 MB safety |
| CompactFlash card | • 1784-CF64 • 1784-CF128 |
• 1784-CF64 • 1784-CF128 |
| Communication options | • EtherNet/IP (standard and safety) • ControlNet (standard and safety) • DeviceNet (standard) |
• EtherNet/IP (standard and safety) • ControlNet (standard and safety) • DeviceNet (standard) |
| Serial communication port | 1 RS-232 serial port | 1 RS-232 serial port |
| Module expansion capacity | • 2 - 1768 modules • 16 - 1769 modules |
• 4 - 1768 modules • 30 - 1769 modules |
| Power supply distance rating | — | — |
| Programming languages | • Standard task: all languages • Safety task: relay ladder, safety application instructions |
• Standard task: all languages • Safety task: relay ladder, safety application instructions |
Accessories—Controllers
1784 Industrial CompactFlash Cards
CompactFlash cards offer nonvolatile memory (flash) to permanently store a user program and tag data. 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 powerup.
The CompactFlash card offers nonvolatile memory (flash) to permanently store a user program and tag data on a controller. The 1769-L3x, 1768-L4x, amd 1768-L4xS controllers support a CompactFlash card.
| Attribute | 1784-CF64 | 1784-CF128 |
| Memory | 128 MB | 128 MB |
| Weight, approx. | 14.2 g (0.5 oz) | |
1769 CompactLogix Batteries
The 1769-L23x and 1769-L3x controllers come with one 1769-BA lithium battery. The 1768 controller does not require a battery. The controller uses internal flash memory to store its program during shutdown. Energy stored in the 1768 power supply maintains controller power long enough to store the program to internal flash memory (not the external CompactFlash card).
| Attribute | 1769-BA |
| Description | Lithium battery (0.59 g) |
| CompactLogix controllers | 1769-L23-QBFC1B, 1769-L23E-QB1B, 1769-L23E-QBFC1B 1769-L31 1769-L32C, 1769-L35CR 1769-L32E, 1769-L35E |