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Allen Bradley - PLC

ControlLogix

The ControlLogix controller series are designed and manufactured by Allen Bradley and enables a high speed data transfer across the backplane. The system can be easily and efficiently designed, built, and modified since it is a modular system, thus saving significantly on training, as well as engineering. It is possible to arrange multiple controllers on a chassis to meet your required standard while incorporating the communication modules to enable data transfer across the controllers. It is possible to use the ControlLogix control platform to perform motion, process, drive, or sequential control with high efficiency in no logical order. The platform also allows for the combination of several networks, input/outputs, and processors. An advantage of the ControlLogix series is that it can be easily integrated with the already existing programmable logic control based systems and, therefore, it is extremely seamless. With the ControlLogix series, the user is able to select a suitable memory size that fits their application. The controller's type of memory is expandable and lacks a default memory for the base device. It is, therefore, necessary for the user to order the required memory in advanced before purchase. The platform used in industries are designed in such a manner that is capable of withstanding extreme thermal conditions, vibrations, and electromagnetic noise. It is considered to be an advanced controller as compared to the CompactLogix controller as it consists of an input/output module, a processing module, a power supply, connectivity devices, and the chassis. During operations, the development time is normally reduced due to the compact integration between the input/output module and the programming software.

Collage of images depicting ControlLogix units

ControlLogix Selection Guide

It is no secret that Allen-Bradley has been a staple for PLCs when it comes to American manufacturing. One of their most common systems is the ControlLogix architecture, specifically the 1756 and the 5580 systems. Released back in 1997, the ControlLogix platform was introduced and was quite a step up from the previous PLC5 and the SLC while also introducing tag-based addressing for the first time. The earliest model of the ControlLogix family is the Logix 5550 with the L1 processor, though, they were quickly made obsolete by the faster L60 and L70 which offered higher speeds and more memory than the previous generation. Fast forwarding to 2015, the new ControlLogix 5580 was introduced, and it dominated the previous generation by providing up to 45 percent application capacity and a 1Gb Ethernet port to support I/O and applications with up to 256 axes of motion. With such a large jump in innovation and processing speeds, Allen-Bradley was planning on these controllers essentially future-proofing the systems that would adopt these latest processors. Following suit in 2018, the addition of the Compact GuardLogix 5580 and 5380 controllers was announced to an already plentiful controller lineup. To this day, the 5580 controllers remain a popular choice for consumers.

While the 5580 reigns supreme over the ControlLogix family, there are many other iterations of controllers to consider when choosing to upgrade or start a new system entirely.

Logix5550

The first iteration of the ControlLogix family is also generally the cheapest in the lineup, but that is for a good reason. The base controller comes standard with only 64KB of storage, however, that storage can be upgraded with the use of optional memory modules such as the 1756-M1 (512KB), 1756-M2 (1 MB), and the 1756-M3 (2 MB). The discontinued controller operates with a single RS232 port to communicate through ControlNet, DH+, DeviceNet, and EtherNet/IP networks. The controller operates with a battery whose replacement part number is 1756-BA1 for its non-volatile integrated Random-Access-Memory.

On the main face of the controller are diagnostic LED indicators that illuminate when a given status is present, such as RS232 communication or failure status. With it is a key that can be used to manually change the mode of the controller. The 1756-L1 can be installed in any ControlLogix chassis such as 1756-A4, 1756-A7, 1756-A10, 1756-A13, and 1756-A17, and it can be inserted into any slot. Because of this, multiple controllers may be used to communicate with each other on the same chassis. All of which is powered by the backplane from the main ControlLogix power supply.

This controller can control medium-scale processes as well as support IEC-61131-2 defined programming language standards such as Ladder, Function Block, Sequential Function Chart, and Statement List programming languages. Utilizing its integrated RS232 port, the controller provides an interface to programming devices, Human Machine Interface (HMI), Supervisory Control and Data Acquisition (SCADA), and other Visualization and Control systems. It also supports stand-alone and distributed I/O allocation with the use of ControlLogix I/O, Flex I/O, and POINT I/O modules.

Logix5560

The Logix5560 system is the first modernized system after the Logix5550. It proves to be quite faster than its previous model while remaining a good choice for budget-conscious consumers. These controllers come with an embedded RS-232 port for communication and can handle up to 250 controller connections. All L60 controllers come with 478 KB of I/O memory and user memory is dependent on the model being chosen.

The 1756-L6S Guard Logix controllers are also a new update to the more modern platform. These controllers take up two slots as they need a corresponding 1756-LSP Safety Partner beside it but function the same as the standard model with the addition of handling safety-related tasks and controlling safety I/O. The Safety Partner is automatically configured to its parent controller when installed. These safety modules also come with conformal coating to better protect them against harsh environments.

Another option for the Logix5560 is the 1756-L63XT extreme environment ControlLogix controller for those who need a controller for higher-temperature work environments. This controller functions just like the standard model but with the addition of widening the operating temperature scale from+32 to 140 degrees Fahrenheit (0 to +60 degrees Celsius), to -13 to +158 degrees Fahrenheit (-25 to +70 degrees Celsius). The ControlLogix chassis compatible with this controller are 1756-A4LXT, 1756-A5XT, 1756-A7LXT, and 1756-A7XT.

Connection Options

  • DeviceNet
  • ControlNet
  • Remote I/O
  • EtherNet/IP
  • Data Highway Plus
  • SynchLink
  • SERCOS
  • Third-party network and process devices

Serial Port Communication

  • ASCII
  • DF1 full/half-duplex
  • DF1 radio modem
  • DH-485
  • Modbus via logic

Programming Languages

  • Function Block Diagram
  • Relay ladder
  • Sequential function chart (SFC)
  • Structured Text

Integrated Motion

  • Analog options such as encoder input, LDT input, and SSI input
  • SERCOS interface
  • Integrated Motion through EtherNet/IP network

Controller Memory

  • 1756-L61 - 2 MB
  • 1756-L62 - 4 MB
  • 1756-L63 - 8 MB
  • 1756-L64 - 16 MB
  • 1756-L65 - 32 MB

Controller Memory for GuardLogix

  • 1756-L61S - 2 MB user / 1 MB safety
  • 1756-L62S - 4 MB user / 1 MB safety
  • 1756-L63S - 8 MB user / 3.75 MB safety

Logix5570

The ControlLogix 5570 series is the next leap forward for the Logix family and is quite a welcomed change. The L70 series now supports redundancy and Removal Insertion Under Power (RIUP). Performance has increased by as much as 2X over the last generation processor as well. With a new environmentally friendly design, the lithium-ion battery has been replaced with capacitor-based energy storage modules that can be removed and replaced. Each controller only takes up one spot in the chassis and multiple may be installed at the same time for full redundancy. The addition of a conformal coating has also been introduced when the 5570 had launched, usually denoted with a ‘K’ suffix at the end of the part number, as well as an Extended Temperature controller (Denoted with an XT instead). The ControlLogix-XT functions the same as the standard controller but can withstand temperatures from -13 to +158 degrees Fahrenheit (-25 to +70 degrees Celsius), as opposed to +32 to 140 degrees Fahrenheit (0 to +60 degrees Celsius) for the standard controllers. They also come with a conformal coating to extend the life of the controller as well as protect it from harsh and corrosive environments.

Each controller will ship with a 1GB SD card (1784-SD1) for optional nonvolatile memory storage. This can also be upgraded to 2GB if needed with the 1784-SD2. Each controller can support 32 to 1000 programs/tasks depending on the software used to configure them, as well as 128,000 digital I/O max, 4000 analog I/O max, and a total of 128,000 I/O max. For user memory, it depends on the controller chosen but the I/O memory is 0.98MB across the board.

Like the previous generation, the Logix5570 also released its own Guardlogix for the updated controllers. These safety modules perform similarly to the standard controller but use a red Safety Partner (1756-LSP) to perform its safety functions and to achieve up to SIL CL 3/PLe/ Cat. 4. These two cards paired together take up two slots on the available rack, but a major benefit is having both safety functions and standard together. The Safety Partner requires no additional user setup and is automatically configured into the system.

Connections

The embedded USB 2.0 (12MBps) port allows for communication through the following:

  • DeviceNet
  • ControlNet
  • Remote I/O
  • EtherNet/IP
  • Data Highway Plus
  • SynchLink
  • SERCOS
  • Third-party network and process devices

Programming Languages

  • Function Block Diagram
  • Relay ladder
  • Sequential function chart (SFC)
  • Structured Text

Integrated Motion

  • Analog options such as encoder input, LDT input, and SSI input
  • SERCOS interface
  • Integrated Motion through EtherNet/IP network

Capacitor Energy Storage Modules

  • 756-ESMCAP, 1756-ESMCA (removable, ships installed with every controller)
  • 756-ESMNSE, 1756-ESMNS (removable, no residual WallClockTime power backup)
  • 756-ESMNRM, 1756-ESMNRM (nonremovable, helps prevent USB connection and SD card use to help secure the controller)

Controller Memory

  • 1756-L71/L71K - 2 MB
  • 1756-L72/L72K - 4 MB
  • 1756-L73/L73K - 8 MB
  • 1756-L74/L74K - 16 MB
  • 1756-L75/L75K - 32 MB

Controller Memory for GuardLogix

  • 1756-L71S/L71SK - 2 MB user / 1 MB safety
  • 1756-L72S/L72SK - 4 MB user / 2MB safety
  • 1756-L73S/L73SK - 8 MB user / 4MB safety

Conformal Coating Certifications

  • ANSI/ISA 71.04.2013 G3 Environment
  • IEC 61086-3-1 Class 2
  • IPC-CC-830
  • MIL-I-46058C
  • EN60068-2-52 salt mist test, severity level 3

Redundancy System

A redundancy system consists of two identical 1756 chassis to act as the main driver and a backup. To do this, certain criteria must be met, such as:

  • An identical number of slots
  • Identical modules within those same slots
  • Either a 1756-RM2 or 1756-RM2XT module per chassis, once again, being identical
  • Up to two ControlLogix 5570 or XT controllers
  • Up to two 1756-RMCx cables
  • A redundant ControlLogix 5570 controller connects the 1715 redundant I/O system through an EtherNet/IP network, all controlled by the 1756-EN2TR communication module

Redundancy System Features Not Supported

  • All motion features
  • Any SIL 3 Functions

Armor ControlLogix

Introduced with the Logix5570 family is the Armor ControlLogix controller. The 1756-L72EROM and 1756-L73EROM were built to combine either an L72 or L73 controller with two EtherNet/IP DLR-capable 1756-EN3TR communication modules all contained in an IP67 certified housing to be mounted to applicable machines. While this controller functions identically to the L72/L73, its energy storage modules are unable to be removed or replaced. Keeping with the trend of non-replaceable parts, the 1756-L72EROM is also protected by a soldered fuse which should protect it if the input range exceeds its 32V DC max as well as fire hazards from short circuits. One thing to also keep in mind is that these controllers do not support controller redundancy, meaning that a second controller can’t take over the tasks if the first were to fall into a faulted state. The 1756-L72EROM/L73EROM comes with a UL Type 4/4x enclosure, measures 9.4 x 11.5 x 6.5 inches, and weighs 15.50 lbs or 7.04 kg.

With the addition of the 1756-L72EROM/L73EROM in the ControlLogix family, Allen-Bradley had also introduced a safety variant, the 1756-L72EROMS/L73EROMS. This controller functions similarly to the non-safety model but with the addition of 2 MB of safety memory and the support for both standard and safety communication options through EtherNet/IP networks.

Logix5580

These processors are the most modern and up-to-date controllers in the lineup. With an all-new design, the addition of safety modules, extreme temperature controllers, powerful processors with over 5 to 20x faster operational speeds than the 5570 and 5560, and enhanced security (ISO 27001 certification), it is quite understandable why Allen-Bradley suggests first-time plant owners or those looking to upgrade start with the 5580 series first.

The Logix5580 series controllers now come with a 1Gb embedded ethernet port for high-speed communications, I/O, and motion control with the previously embedded USB 2.0 port. Unlike the previous models, these cards now ship out with a preinstalled 2GB SD card, which was considered an upgrade from the previous.

Released with the new generation of controllers is the GuardLogix 5580, able to achieve up to SIL 2/PLd (category 3) with a single controller and the use of the safety task and safety I/O. If a Safety Partner is paired with the original controller, it allows the safety integrity to reach SIL 3. This level of integration allows its safety memory to be read by logic and external devices, such as HMIs and other controllers, to minimize the need to condition safety memory for use elsewhere. This allows system-wide integration and the ability to display safety status on displays or marquees. These safety controllers are also available with a conformal coating, having the “SK” suffix at the end of the product number, and the “S” suffix without conformal coating.

ControlLogix 5580 Process Controllers have also been released with the latest generation of controllers. These are made specifically for hazardous workplaces and industries such as mining, metals, foods, oil, brewery, and more. These controllers focus on plantwide process control while also configured with the default process tasking model and dedicated PlantPAx process instructions for a much more efficient workflow. These controllers are designated with the “P” suffix at the end of the product number.

Like the previous generation, the 5580 also comes with their Extreme Temperature Controller (suffix of “EXT” on the part number) to widen the operating temperature scale from+32 to 140 oF (0 to +60oC), to -13 to +158oF (-25 to +70oC). These controllers come with a convection-cooled design, maintain all product certifications from the standard controller, and are tested to ANSI/ISA-S71.04-1985; class G3 standards. It is also recommended for customers who have previously used the LXT chassis to replace them with the K version of the chassis.

Connections

The embedded USB 2.0 (12MBps) port and dedicated Ethernet (1Gbps) port allow for communication through the following:

  • DeviceNet
  • ControlNet
  • Remote I/O
  • EtherNet/IP
  • Data Highway Plus
  • SynchLink
  • SERCOS
  • Third-party network and process devices

Network Connections per Network Module on the Local Chassis

  • 128 EtherNet/IP; 64 TCP (1756-ENBT)
  • 256 EtherNet/IP; 128 TCP (1756-EN2x)
  • 528 EtherNet/IP; 512 TCP (1756-EN4TR)
  • 40 ControlNet (1756-CNB/D, 1756-CNB/E)
  • 100 ControlNet (1756-CN2/A)
  • 128 ControlNet (1756-CN2/B)

Programming Languages

  • Function Block Diagram
  • Relay Ladder Logic
  • Sequential Function Chart (SFC)
  • Structured Text

Integrated Motion

  • Analog options such as encoder input, LDT input, and SSI input
  • SERCOS interface
  • Integrated Motion through EtherNet/IP network

Controller Memory

  • 1756-L81/L81K/L81EXT - 3 MB
  • 1756-L82/L82K/L82EXT - 5 MB
  • 1756-L83/L83K/L83EXT - 10 MB
  • 1756-L84/L84K/L84EXT - 20 MB
  • 1756-L85/L85K/L85EXT - 40 MB

Controller Memory for GuardLogix

  • 1756-L81ES/L81ESK - 3 MB user / 1.5 MB safety
  • 1756-L82ES /L82ESK - 5 MB user /2.5 MB safety
  • 1756-L83ES /L83ESK - 10 MB user /5 MB safety
  • 1756-L84ES /L84ESK - 20 MB user /6 MB safety

Conreoller Memory for Process Controllers

  • 1756-L81EP - 3 MB
  • 1756-L83EP - 10 MB
  • 1756-L85EP - 40 MB

Conformal Coating Certifications

  • ANSI/ISA 71.04.2013 G3 Environment
  • IEC 61086-3-1 Class 2
  • IPC-CC-830
  • MIL-I-46058C
  • EN60068-2-52 salt mist test, severity level 3

Redundancy Requirements

The 5580 High Availability System allows for quick switching between redundant systems in the case of loss of power, major fault, removal/insertion of any module, failure of a module, loss of an EtherNet/IP connection, and program-prompted switchover. To enable this feature, two identical 5580 systems need to contain these ControlLogix components:

  • One ControlLogix power supply
  • One ControlLogix 1756-RM2 redundancy module
  • Redundancy modules link the redundant chassis pair to monitor events in each chassis and initiate system responses as required.
  • At least one ControlLogix EtherNet/IP communication module

Redundancy Features Not Supported

  • Any motion features
  • Compact 5000 I/O
  • DeviceNet, ControlNet, RIO, and Data Highway+ networks
  • Event Tasks
  • Firmware Supervisor
  • IEC 62443-4-2 Security certification
  • Input or consumed unicast connections
  • License-based Source and Execution Protection
  • Messaging to PLC-2, PLC-3, PLC-5, SLC, and other legacy controllers
  • The embedded Gigabit Ethernet port of the controller

Conclusion

The ControlLogix is an extensive platform with many different controllers to choose from. It is important to conduct research as well as consulting guides such as these to help pick out the perfect setup for your needs. While there are many to choose from, Allen-Bradley recommends the 5580 system to be at the heart of your workflow. While that is an excellent choice, budget does play a major role in the selection of these controllers. It is up to the buyer to compromise on controller speeds for budget as these controllers all mostly follow the same specifications and process power. You wouldn’t be missing out on too much from a 5570 system compared to a 5580 system unless you want the flexibility of having the option of a single safety controller or process controllers.

Browse our selection of ControlLogix units

AutomationStop.com's online catalog offers one of the largest selections of preowned ControlLogix units in the world.

1756-L84E

Manufactured by Allen Bradley, the 1756-L84E is a controller module that belongs to the ControlLogix 5580 product line. This module has a 20-Megabyte user memory and may support up to a maximum of 250 Ethernet/IP nodes. It is equipped with a single USB 2.0 full-speed Type B port, as well as one (1) Ethernet/IP port with link speeds of 10 Mbps, 100 Mbps, and 1 Gbps. This module can perform a maximum of 32 tasks at once.

1756-L85E

The 1756-L85E processor module a product of Allen Bradley, and it belongs to the ControlLogix 5580 product line. This device has a user memory of 40 Megabytes. It uses the Ethernet communication whose speed ranges from 10 Megabytes per second to 1000 Megabytes per second. It can manage up to 32 tasks in a given time during operations and 1000 programs per task. The device is capable of displaying four characters, either alphabetical or numerical. It has a USB port whose data transfer speed is approximately 12 Mbps.

1756-LSP

The 1756-LSP is a safety controller compatible with the 1756-L61S, 1756-L62S, and 1756-L63S GuardLogix controllers from Allen-Bradley. This module draws 14 milliamperes of current at 24 volts DC and has a power dissipation rating of 3.5 watts. The 1756-LSP is compatible with various chassis-based products and, when installed, takes up two (2) slots.

1756-M02AE

The 1756-M02AE is an analog motion controller from Allen-Bradley. This controller supports a maximum of two (2) axes. This module has a 32-bit gain resolution and has an absolute position range of ±1,000,000,000 encoder counts. This analog motion controller draws 2.5 milliamperes of current at 24 volts DC and dissipates 5.49 watts of power. The rated isolation voltage of the 1756-M02AE is 30 volts (continuous).

1756-M02AS

The 1756-MO2AS is an analog motion module from the ControlLogix series of products. Manufactured by Allen Bradley, this device has 2 axes per module and 32 axes per controller. It draws a rated current of 700 milliamperes at 5.1 volts and 2.5 milliamperes at 24 volts direct current. The isolation voltage of this product is 50 volts continuous. Furthermore, the 1756-M02AS has a rated power dissipation of 5.5 watts, as well as a rated thermal dissipation of 18.77 BTU/hr. This module should be operated when the temperature ranges from 0 to 60 degrees Celsius.

1756-M03SE

The 1756-M03SE is a SERCOS interface module for digital servo drives. This is an Allen Bradley module from the ControlLogix line of products. It allows for a controller to interface with SERCOS interface drivers. It is compatible with Kinetix 2000 servo drives. It can utilize up to 3 axes per module and up to 32 axes per controller. The SERCOS data rates for this device include 4 and 8 Megabytes per second (Mbps).

1756-M08SE

The 1756-M08SE is a SERCOS interface module that directly connects a ControlLogix rack to SERCOS drives. It is a device that was manufactured by Allen Bradley. The supported data rates of this device include 4 Mbps and 8 Mbps. Additionally, the control modes of this device include position, velocity, and torque. This device is compatible with 1756-PA75R, 1756-PB75R, and 1756-PSCA2 redundant modules. It consumes 2.5 mA at 24 VDC and 769 mA at 5 VDC. 

1756-M08SEG

Catalog number 1756-M08SEG from Allen Bradley is a SERCOS interface module. This unit supports up to eight (8) drives. The SERCOS data rate of this device is 4 Mbps and 8 Mbps. This unit draws 760 milliamperes at 5.1 volts DC, as well as 2.5 milliamperes at 24 volts DC. The power dissipated by the 1756-M08SEG is rated as 5.0 watts.

1756-M1

The 1756-M1 is a 512K memory expansion module for the ControlLogix Series A platform. The 1756-L1, 1756-L1M1, 1756-L1M2, and 1756-L1M3 controllers are compatible with this module. It has 512 KB of expandable memory. Additionally, the 1756-M1 has a continuous isolation voltage rating of 50 volts.

1756-M12

Part number 1756-M12 is an Allen Bradley memory board with no non-volatile memory. This unit belongs to the ControlLogix5555 series of products. This memory board should be operated when the ambient temperature ranges from 0 - 60 degrees Celsius (32 - 140 degrees Fahrenheit). The 1756-M12 does not have an enclosure.

1756-M13

The 1756-M13 memory board from Allen Bradley does not have non-volatile memory. It is a part of the ControlLogix5555 line of products. It is recommended that this memory board be used only when the temperature ranges from 0 degrees Celsius to 60 degrees Celsius. This product does not have an enclosure installed on it.

1756-M14

Part number 1756-M14, which was produced by Allen Bradley, is a memory board. This product is a part of the ControlLogix5555 line of products, and it does not have non-volatile memory. The temperature suitable for the operation of the 1756-M14 ranges from 0 - 60 °C, while the temperature suitable for its storage ranges from -40 - 85 °C.

1756-M16

The Allen Bradley 1756-M16 is a memory board belonging to the ControlLogix5555 series of products. The 1756-M16 memory board does not have non-volatile memory included. This device also does not have an enclosure. The temperature recommended for this unit's operation ranges from 0 degrees Celsius to 60 degrees Celsius.

1756-M16SE

The 1756-M16SE is an interface module belonging to the ControlLogix product line. This unit has 16 axis drives per module and is applicable with SERCOS. The rate at which data is transferred is 4 Mbps and 8 Mbps. It draws a backplane current of 2.5 milliamperes at a direct current voltage of 24 volts. The isolation voltage is rated as 50 volts and the maximum power dissipated is 5.0 watts. The device can be mounted anywhere on a 1756 I/O chassis.

1756-M2

Catalog number 1756-M2 is a memory board that was designed and produced by Allen-Bradley / Rockwell Automation. This memory board belongs to the ControlLogix5550 product line. The memory capacity of the 1756-M2 is 1 Megabyte. The operating temperature suitable for this memory board ranges from 0 to 60 degrees Celsius.

1756-M22

The Allen Bradley 1756-M22 is a memory board. It is part of the ControlLogix line of products. This memory board is compatible with a wide range of controllers. It can operate at temperatures ranging from 0 to 60 °C. It can also be stored at temperatures ranging from -40 to 85 °C.

1756-M23

Catalog number 1756-M23 is a product of Allen Bradley. This device is a memory board with non-volatile memory. The 1756-M23 has a 1.5-Megabyte memory capacity. This memory board should be operated when the ambient temperature ranges from 0 to 60 degrees Celsius. The 1756-M23 is not equipped with an enclosure and, therefore, is classified as an open-style unit.

1756-M24

Part number 1756-M24 is a non-volatile memory board from the ControlLogix5555 series of products. This product was designed and produced by Allen Bradley. This unit does not have an enclosure. It should only be used when the ambient temperature ranges from 0 to 60 degrees Celsius.

1756-M3

Part number 1756-M3 is a ControlLogix5550-series memory board. This device was designed and produced by Allen Bradley / Rockwell Automation. This memory board hasa memory capacity of 2 Megabytes (MB). It is not equipped with an enclosure. The 1756-M3 should be operated when the ambient temperature ranges from 0-60 degrees Celsius.

1756-MVI

The 1756-MVI is a multi-vendor interface module that can utilize RS-232, RS-422, and RS-485. It belongs to Allen Bradley's ControlLogix range of products. This module comes with 3 serial adapter cables, 1 installation handbook, and 1 CD-ROM. Its SECROS data rates are 4 Mbps or 8 Mbps. This product does not have an enclosure. Its power dissipation range is 6.2 watts, and its thermal dissipation range is 21.2 BTU/hour.

1756-MVID

Part number 1756-MVID is a multi-vendor interface module from Allen Bradley. This device belongs to the ControlLogix 1756 series of products. This unit has an 800-milliampere backplane current load at 5.1 volts DC, in addition to a 30-milliampere backplane current load at 24 volts DC. The power dissipated by the 1756-MVID is rated as 4 watts.

1756-N2

The 1756-N2 is a slot filler from the ControlLogix product family by Allen Bradley. This filler module is engineered to fill empty slots in a ControlLogix chassis. It has a rated backplane current draw of 800 milliamperes at 5 VDC and 3 milliamperes at 24 VDC. Its power dissipation is rated as 4 watts, and its isolation voltage is rated as 50 volts continuous.

1756-OA16

The 1756-OA16 is a ControlLogix output module that was designed by Allen Bradley. It consists of 16 channels that are fused mechanically and subdivided into two groups, each consisting of eight channels. This product is a digital AC output module with a voltage range of 79 volts to 265 volts at a frequency range of 47 hertz to 63 hertz. The output current rating is 0.5 amperes, the current draw rating is 400 milliamperes at 5.1 volts, and the maximum power dissipation is 6.5 watts at 60 degrees Celsius.

1756-OA16I

The 1756-OA16I is a 1756 ControlLogix output module with 16 individually isolated outputs designed and manufactured by Allen-Bradley. This module requires 120-240 volts AC at 50/60 Hz to operate. This output module has a 250-volt (continuous) rated isolation voltage.

1756-OA8

The 1756-OA8 is a ControlLogix digital AC output module manufactured by Allen Bradley. It has eight outputs that are divided into two groups. This module's operational voltage range is 74 to 265 VAC at 47 to 63 Hz. The current draw rates of this device are 200 mA at 5.1 Volts and 2 mA at 24 Volts. Additionally, the 1756-OA8's total backplane power is rated as 1.07 watts.

1756-OA8D

Catalog number 1756-OA8D is a diagnostic output module from Allen Bradley. This unit belongs to the 1756 ControlLogix product platform. This unit is rated at 120 volts AC at 50/60 hertz. The 1756-OA8D has eight (8) diagnostic outputs with electronic fusing. The operating voltage of this module ranges from 74 to 132 volts AC at a frequency ranging from 47 to 63 hertz. This device has a minimum load current of 10 mA per point. Additionally, the isolation voltage of the 1756-OA8D is rated as 125 volts (continuous).

1756-OA8E

The 1756-OA8E is an alternating current (AC) digital output module belonging to the ControlLogix series and is a product of Allen Bradley. It consists of 8 output points, in which they are divided into two (2) groups of four (4) points. This device has an operating voltage range of 74 to 132 volts AC at 47 to 63 hertz. The output current is given as 2 amperes per each point. The maximum power dissipated by this device is 5.5 watts at 60 degrees Celsius. The current draw of this module is 200 mA at 5.1 volts and 250 mA at 24 volts.

1756-OB16D

The 1756-OB16D, which was designed and produced by Allen Bradley, is a ControlLogix output module. This unit has sixteen diagnostic output points, in which they are divided into two groups of eight output points each. In order to operate correctly, the 1756-OB16D requires a voltage ranging from 19.2 to 30 volts direct current (DC). The minimum load current is 3 milliamperes per output point.

1756-OB16E

The 1756-OB16E is an Allen Bradley/Rockwell Automation output module designed to be a part of the ControlLogix product series. This module has 2 groups of 8 output points totaling 16 output points. Its output voltage range is 10-31.2 Volts DC, and its nominal voltage range is 24 Volts DC. The total backplane power of this output module is 1.32 watts. At 60 degrees Celsius, this unit has a maximum power dissipation rating of 4.1 watts.

1756-OB16I

Part number 1756-OB16I is a DC digital output module that was manufactured by Allen Bradley as part of the ControlLogix line of products. This device has sixteen individually isolated outputs. The voltage category of this product is 12/24 volts direct current (DC) sink/source. The 1756-OB16I operates at a voltage ranging from 10 volts DC to 30 volts DC. It has a 1.8-watt rated total backplane power.

1756-OB16IEF

The 1756-OB16IEF is a DC output module for the ControlLogix platform from Allen Bradley. It has 16 individually isolated outputs and is electronically fused and protected per point. It reacts to system transition commands in less than 25 seconds. It also includes status indicators for displaying diagnostic and I/O statuses. This unit's max output current rating is 8 amperes at 30 °C and 4 amperes at 60 °C.

1756-OB16IEFS

The Allen Bradley 1756-OB16IEFS is a ControlLogix DC output module. This module has sixteen (16) scheduled, individually isolated output channels. The pilot duty rating of this product is 4 amperes inrush. It operates at a voltage ranging from 10 to 30 volts direct current (DC).

1756-OB16IS

Catalog number 1756-OB16IS is an Allen Bradley DC digital output module. It has sixteen (16) individually isolated outputs or eight (8) scheduled outputs. The operating voltage range of this module is 10 volts DC to 30 volts DC. The total backplane power of this unit is rated at 1.8 watts, and the max power dissipated by the 1756-OB16IS is rated at 3.6 watts at 60 degrees Celsius. This product has a 250-volt (continuous) rated isolation voltage.

1756-OB32

Part number 1756-OB32 is a DC digital output module that was designed and produced by Allen Bradley. This device has thirty-two (32) output channels divided into two (2) groups of sixteen (16) output channels each. The voltage category of the 1756-OB32 is 12/24 volts DC sourcing. This unit operates at a voltage that ranges from 10 to 31.3 volts DC. At 5.1 volts DC, the 1756-OB32 draws 300 milliamperes of current, while at 24 volts, it draws 2 milliamperes of current. The 1756-OB32 is compatible with the 1756-TBCH and 1756-TBS6H removable terminal blocks.

1756-OB8

Product number 1756-OB8 from Allen Bradley is a DC digital output module. This module has eight output points with 4 points per common. This device operates at 10 to 30 volts DC. It draws 165 milliamperes at 5.1 volts, as well as 2 milliamperes at 24 volts. The isolation voltage of the 1756-OB8 is rated at 250 volts (continuous). This product is not equipped with an enclosure.

1756-OB8EI

The ControlLogix 1756-OB8EI is a digital output module made by Allen Bradley.  It has eight independently fused and isolated outputs that can provide a nominal voltage rated as 24 Volts DC and have an output voltage ranging from 10-30 Volts DC. It's commonly used for electrical power loads.

1756-OB8I

Catalog number 1756-OB8I is a DC output module with eight (8) individually isolated output points. This module was produced by Allen Bradley. In addition, this device belongs to the ControlLogix product platform. The operating voltage of this unit should range from 10 volts DC to 30 volts DC. The minimum load current of the 1756-OB8I is 2 milliamperes. This product does not have an enclosure.

1756-OC8

Part number 1756-OC8 is a DC digital output module that was designed and manufactured by Allen-Bradley / Rockwell Automation. This device has eight output points divided into two groups of four points each. This product has a 2-ampere pilot duty rating. The voltage category of this device is 48 volts DC source, while its operating temperature should range from 30 to 60 volts DC. The total backplane power of this unit is rated at 0.89 watts.

1756-OF4

The Allen Bradley 1756-OF4 is a ControlLogix analog output module, consisting of four (4) analog output channels. The signals for both the output voltage and output current ranges from -/+ 10 volts and 4 to 20 milliamperes, respectively. The signal’s resolution is given as 15 bits across 21 milliamperes to 650 nanoamperes per bit. This module is equipped with open circuit detection, overvoltage protection, and short circuit protection.

1756-OF6CI

The 1756-OF6CI is a product of Allen Bradley. This product is an analog output module. It consists of six output points that are individually isolated. The resolution of the output signal is 13 bits across 21 milliamperes. The removal terminal block required by the device is either the 1756-TBNH or 1756-TBS. This is a single-slot module that is not equipped with an enclosure. This module operates at a temperature ranging from 0 to 60 degrees Celsius.

1756-OF6VI

The Allen Bradley 1756-OF6VI is a ControlLogix output module. This device performs the applications of a voltage loop output module. This module has 6 isolated output channels and an output signal range of +/-10VDC. The backplane current draw rating of this device is 250 mA at 5V and 175 mA at 24V. This module has an accuracy rating of 0.5%.

1756-OF8

The 1756-OF8 is an analog output module for currents or voltages belonging to the ControlLogix series. This unit features eight (8) output points that allows for passage of 0 to 20 milliamperes and a direct voltage of +/- 10 volts. The signals at the output have a 15-bit resolution that cuts across 21 milliamperes to 650 nanoamperes per bit and across 10.4 volts to 320 microvolts per bit.

1756-OF8H

Allen-Bradley's 1756-OF8H analog output module consists of eight differential outputs in addition to a HART modem. This ControlLogix series module has a configurable voltage rating of -10 to 10 volts, as well as configurable current ratings of 0 to 20 milliamperes and 4 to 20 milliamperes. The total backplane power of this device is 6.54 watts. Additionally, the 1756-OF8H's isolation voltage is rated at 50 volts (continuous).

1756-OF8I

Catalog number 1756-OF8I is an Allen Bradley analog output module. This product has a total of eight (8) isolated output channels. The output ranges of this module include -10 to 10 volts, 0 to 10 volts, 0 to 5 volts, and 0 to 20 milliamperes. The 1756-OF8I has a 16-bit resolution. The rated current draw of this analog output module at 5.1 volts is 200 milliamperes. Additionally, the 1756-OF8I has a 250-volt (continuous) isolation voltage.

1756-OG16

The 1756-OG16 DC digital output module was produced by Allen Bradley as part of the 1756 ControlLogix product series. This module has 16 output channels that are divided up into 2 groups of 8 output channels each. The voltage category of the 1756-OG16 is 5 volts DC TTL. This unit draws 210 mA and 2 mA of current at 5.1 volts and 24 volts, respectively. It is a single-slot device, but it does not have an enclosure.

1756-OH8I

Product number 1756-OH8I is a ControlLogix DC isolated output module that was produced by Allen Bradley. This product is rated at 125 volts DC sink/source with arecommended operating voltage rated at 90 to 146 volts DC. The 1756-OH8I has 8 outputs that are individually isolated. This product does not have an enclosure and, therefore, is classified as an open-style device. This product is also classified as a single-slot device.

1756-ON8

Product number 1756-ON8 is a ControlLogix 24-volt AC output module from Allen Bradley. This device has eight outputs, of which these outputs are divided up into two (2) groups of four (4). It draws 200 milliamperes of current at 5.1 volts, as well as 2 milliamperes of current at 24 volts. The 1756-ON8 has a total backplane power rated at 1.07 watts. It also has a minimum load current rating of 10 milliamperes per point.

1756-OV16E

The 1756-OV16E DC output module was produced by Allen Bradley as part of the ControlLogix line of products. This device is rated at 12/24 volts DC sink with a total of 16 outputs that are electronically fused. The pilot duty rating of the 1756-OV16E is 1 ampere. This module can operate at a temperature that ranges from 10 to 30 volts DC. It has a 250-volt (continuous) rated isolation voltage.

1756-OV32E

The 1756-OV32E is an Allen Bradley output module. It is a chassis-mounted output module with 32 electrically fused outputs that is part of the ControlLogix series of products. It operates at a voltage ranging from 10 VDC to 30 VDC. This product should be operated at a temperature ranging from 0 degrees Celsius to 60 degrees Celsius.

1756-OW16I

The 1756-OW16I is an output module belonging to the ControlLogix family. It has a total of 16 normally open (NO) individually isolated output channels. The voltage rating for each contact points ranges from 5 to 125 volts AC and 10 to 240 volts AC. The output current for each point is rated as 10 milliamperes. The total amount of power released at 60 degrees Celsius is 4.5 watts, and the backplane current at voltage range of 5 volts to 24 volts is 150 milliamperes. The output delay time is a maximum of 10 milliseconds. The continuous isolation voltage is 50 volts.
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