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Allen Bradley - PLC

PLC 5

The wide variety of controllers in the PLC-5 product lineup allows you to select the unit that works best with your application’s requirements. Controllers are available with user memory capacity ranging from 8K words up to 100K words. If you require a compact system, you can use the controller that best matches your requirements and is able to operate while only drawing minimal power from your system. The controllers are further offered with a variety of communication ports that you can select from depending if your system uses the Data Highway Plus or Ethernet network. The 1785-ENET module can be used to provide Ethernet capability to PLC-5 controllers that do not have it built in. The 1785-BCM module provides redundancy for any Programmable Controller module operating a critical function in your system. If your system requires high-speed I/O updates, the controllers support establishing an Extended-local I/O link that uses the 1771-ALX adapter module to provide fast scan and update times compared to remote I/O links. The PLC-5 series includes high-resolution isolated analog input and output modules in the N-series of PLC-5 controllers. You can use these modules to monitor your system’s parameters and have current, voltage, and temperature information available in a digital format that can be monitored on a computer or used as digital outputs for system control. Specialized modules are also available, including high-speed counter modules designed for industrial use, Thermocouple and RTD modules, and linear positioning modules for use in servo motor and hydraulic control systems. The power supply modules can be connected directly to the chassis and also support cable connections for applications with limited space. If your system involves multiple controllers and has a high current requirement, battery modules with parallel capability are also offered as part of this product line. Power supplies are available with AC and DC variants and include built-in fuses to protect your system from damage. The product lineup also includes adapters and PIC cards for connecting computers to PLC controllers with DH+ and DeviceNet networks. 1771 chassis are available in a range of sizes, allowing them to house as many modules as you require while still maintaining a small footprint. Chassis are also available with integrated power supplies and adapters for an even more compact package. If your system requires high-speed I/O updates, the controllers support establishing an Extended-local I/O link that uses the 1771-ALX adapter module to provide fast scan and update times compared to remote I/O links. The PLC-5 series includes high-resolution isolated analog input and output modules in the N-series of PLC-5 controllers. You can use these modules to monitor your system’s parameters and have current, voltage, and temperature information available in a digital format that can be monitored on a computer or used as digital outputs for system control. Specialized modules are also available, including high-speed counter modules designed for industrial use, Thermocouple and RTD modules, and linear positioning modules for use in servo motor and hydraulic control systems. The power supply modules can be connected directly to the chassis and also support cable connections for applications with limited space. If your system involves multiple controllers and has a high current requirement, battery modules with parallel capability are also offered as part of this product line. Power supplies are available with AC and DC variants and include built-in fuses to protect your system from damage. The product lineup also includes adapters and PIC cards for connecting computers to PLC-controllers with DH+ and DeviceNet networks.

PLC 5 Selection Guide

Industrialization brought about an increase in productivity and efficiency. Accordingly, many different types of programmable logic controllers (PLCs) were developed to suit every possible need. Each has its pros and cons; one well-known model from Allen Bradley is the PLC-5. The PLC-5 features are highlighted below.

PLC 5 Overview

A PLC-5 control system requires a minimum of one I/O module and Controller. The Controller requires specific communication ports. All controllers (regardless of model) come with interfaces for the included external remote I/O scanners. This makes it possible to monitor and control outlying locations without physically going there. 

Some models also come equipped with embedded internal remote I/O scanner connections. In contrast, others feature connection points through ControlNet or DeviceNet systems—giving one up to four options per type of connection when configuring one's personalized PLC-5 configuration. One needs either a 1771-SDN DeviceNet Scanner Module or 1771-ACN15 I/O Adapter Module installed on each side (remotely or locally). With either the SDN or ACN system, one can monitor and access up to sixteen separate devices simultaneously.

The PLC-5 Programmable Controller serves as the center for all Control Architectures. This powerful machine can connect systems to networks such as ControlNet, EtherNet/IP, or DeviceNet. These controllers have different inputs so that they can utilize whichever network they need for a specific application.

Features of a PLC 5 Controller

High-speed, single-slot PLC-5 controllers come equipped with many ways of processing and carrying out information. If one is looking for a controller that can handle large sequential or regulatory control apps along with unique I/O demands - the Standard PLC-5 controller can be a good option. However, if one wants to communicate using the same essential tools with other devices or interfaces, then use an Enhanced PLC-5 controller. No matter which one is chosen by the user, they all share the same impressive list of capabilities, making them all perfect!

Various PLC 5 Controllers

Enhanced PLC 5 Controllers

All Enhanced PLC-5 Controllers feature Data Highway Plus or Remote I/O ports, enabling them to communicate one-on-one with other devices. Real-time data exchange is possible, allowing operators to monitor and control all process aspects.

EtherNet PLC 5 Controllers

These controllers have been seamlessly integrated into an industry-standard EtherNet/IP system via the Ethernet PLC-5 controller, providing a versatile and open solution for every business. One can quickly do anything from production management to executive summaries of process information due to the Ethernet PLC-5 controllers' internet-friendly capabilities. These capabilities ensure that every corner of one's company is aware of what is always happening. With access to detailed diagnostics made possible by the Web server, there is no longer any need for speculation. This is supported by SNMP and DNS as well.

ControlNet PLC 5 Controllers

These controllers offer full ControlNet capabilities to control and manage automation devices. With a 5Mbps network connection, ControlNet provides reliable and consistent peer-to-peer communication and I/O access. One ControlNet Network can include many Controller units - each managing its hardware - which interact with one another for shared tasks. For example, one I/O node could provide input to multiple controllers simultaneously.

Protected PLC 5 Controllers

These controllers allow for selective guarding of controller memory and input, limiting access to critical points in programming codes and a program's accessibility. This type of protection is identifiable by its distinctive safety-yellow labeling. Use either System Administrator Rights or the appropriate Role (e.g., Plant Engineer) assigned through Programming Tools to control which users have access to which sets of areas on the system (including Communication Channels and Nodes connected via DH+, ControlNet Networks, Program Files, and Data Files, Remote Nodes). The Password Protection of other PLC-5 Controllers does not provide as high a level of security as the Protected variant; however, Extra Software explicitly designed for Clutch/Brake Applications is included with this Model from Rockwell Automation.

I/O Modules

Allen Bradley/Rockwell Automation has supplied over three million of its I/O modules to customers worldwide. There are many types of I/O module options, including block-based, modular-distributed, and chassis-based to select from. Selecting an appropriate module type might be difficult initially, but one can find guidance in the Allen Bradley I/O Module Brochure.

1771 I/O Modules

Digital, analog, and customized configurations are just a few options for the 1771 IO modules. With the help of these modules, sensors or actuators may be connected to power sources that use alternating current (AC) and direct current (DC). Up to 32 IO points per module are the maximum I/O density that users can choose. This covers all signals, from analog or output signals to direct thermocouple or RTD temperature input signals. PLC-5 controllers are compatible with the 1771 IO across local I/O, remote I/O, extended-local I/O, and ControlNet networks, so individuals may use them on whatever system they wish.

1746 I/O Modules

The 1746 I/O modules (SLC 500 I/O) provide a cost-effective remote I/O option. It is recommended to use an SLC 500 remote I/O module (1747-ASB) or ControlNet adapter module to link 1746 I/O modules directly to the PLC-5 system (1747-ACN15 or -ACNR15). Features of 1746 I/O modules include:

  • High-density point modules
  • 16-point modules
  • Removable terminal blocks

The industrial design includes Optical Isolation and Input Filtering. PLC-5 controllers support ControlNet and 1746 I/O via Remote IO.

Additional I/O Modules: Encompass Partners Program

Rockwell Automation's third-party product is referencing the program Encompass Partners. It has been created to improve the benefits of its products while also focusing on high-level technologies through new application development opportunities. These third parties can bring out features and functions not included in Rockwell Automation Products.

Network Communications

Network capability allows for quick and efficient data transmission to all devices. This includes Ethernet, control net, and device net connections - each used depending on the requirements needed.

  1. Ethernet/IP functions as a network connection if the system demands high-speed information transmission among multiple computers, an intranet connection, and program maintenance.
  2. Control Net connects to other controllers and I/O devices fast enough to handle high-speed transfers without latency or delay - whether one wants it for deterministic reliability or ease of use in maintaining programs over long distances.
  3. The DeviceNet network can be used if the system requires connections of low-level physical plant controllers instead of using other hardware bridges such as I/O modules. Additionally, the DeviceNet network is feasible when the application requires fault detection, improved data collection, reduced wiring, and less start-up time.
  4. If the system requires plant-wide and cell-level data interchange with program maintenance, use Data Highway Plus as the network connection.
  5. If the system needs connections between controllers and I/O adapters, Remote I/O as network communication is employed. A Remote I/O network connection can be used if the application requires distributed controllers, each of which has its own I/O and interacts with a supervisory controller.
  6. Use a Serial Network as a network connection if the system needs to send or receive messages with ASCII characters. When an application requires modems and SCADA, a serial network is employed as a method of network communication.

PLC 5 Ethernet Interface Module

To provide further Ethernet connection, any Enhanced PLC-5 series B or later Controller, Ethernet PLC-5 controller, or ControlNet PLC-5 controller can be fitted with the PLC-5 Ethernet Interface Module (1785-ENET), which is a single-slot module. Businesses can utilize standard Ethernet or Internet access to manage and monitor production using the Ethernet interface module's integrated communication features. Users seeking executive summaries of process information have quick access using a web browser.

ControlNet Network

ControlNet PLC-5 controllers have integrated ControlNet connection capabilities for processing information and controls. On a 5 Mbps network, the ControlNet network offers repeatable and deterministic peer-to-peer communications and I/O control. This makes it possible to have many ControlNet PLC-5 controllers on the same System Network, each of which can manage its own I/O. Even if configuration settings in the program did not previously state it, if one Controller is getting input data from an Input Device or Object Node, it would also be able to convey that data to another controller that requires this sort of data received.

DeviceNet Network

The 1771-SDN DeviceNet Scanner Module acts as an interface between DeviceNet devices and a PLC-5 Controller, allowing it to communicate with DeviceNet devices over the network to:

  • Read and write input/outputs
  • Download Configuration Data
  • Monitor the Operational Status

A single slot module can reside in either a 1771 I/O Chassis containing a PLC-5 controller, or one remotely connected via an extended local I/O link, remote I/O link, or Control Networked to said controller. The number of DeviceNet scanners is limited by the chassis size, available memory, and power supply capacity when residing in the same I/O chassis.

Serial Network

For RS-232, RS-423, or RS-422A compliant serial connection, the PLC-5 serial port may be set up. It may be used to link devices that transmit and receive ASCII characters using an ASCII terminal or printer, and/or utilize the DF1 protocol, such as communications modules, modems, programming workstations, and other serial devices.

The serial port employs the DF1 protocol when set for System mode. System Mode can be used to connect with other devices through the Serial Link.

Programs for SCADA systems can be launched on the serial port while in System Mode. Users may now monitor and control little chores via serial link connection between the locations of the master and enslaved individual. PLC BASIC modules take up a single slot in a 1771 I/O chassis, and they run via user-written BASIC and C applications. These programs enable communication between a PLC-5 Controller, 1771 Backplane, and Remote RS-232 Devices since they are not dependent on the system's PLC-5 Controller. The 1771-KE and 1771kf communication controller modules connect intelligent RS232 devices to Data Highway. Both modules provide users with the option between the Full Duplex and Half Duplex protocols for usage on the RS-232C Link. Through a Db-485 Port, the module may connect with a Remote SLC Controller or Device on the Db-485 Network.

Data Highway Plus

The Data Highway Plus (DH+) network is a robust way of connecting all company assets, whether they are located at headquarters or on the manufacturing floor. Not only does it allow one to update the machines remotely, but it also facilitates collaboration between programmers who are working with different models and locations. One of its most outstanding features is that it supports many topologies: daisy chain and trunkline dropline are two examples.

Remote I/O

The magnificence and durability of this technology are what make it such a staple in industrial automation. It provides 1771 input/output connections and supports many Rockwell Automation or 3rd-party compatible products - including simple I/O with controllers and interfaces, even complicated setups involving different types of machinery. This tool benefits businesses tremendously because they can save installation time, startup times, and maintenance costs when they use the remote data system rather than wire directly to a central I/O unit. Pass-Through enables devices on an external network like Ethernet, ControlNet, or DH+ to remotely adjust them from one location.

Browse our selection of PLC 5 units

AutomationStop.com's online catalog offers one of the largest selections of preowned PLC 5 units in the world.

1771-AL

The 1771-AL is a local I/O adapter manufactured by Allen Bradley. Its current backplane requirement is 0.7 amperes at 5 volts DC, with a 600-milliampere maximum current load. It supports a coaxial quad-shield RG-6 cable and takes up one slot of a 1771 I/O chassis. Its maximum power dissipation rating is 5 watts, and its thermal dissipation rating is 17.06 BTU/hr.

1771-HD

The Allen-Bradley 1771-HD is a hand-held device that enables easy adjustments of system variable values, including system parameter values. The 1771-HD has a display that can show up to four (4) lines of text with up to sixteen (16) characters per line. This display shows error warnings from the connected system or the user-enabled menu. The 1771-HD has five (5) configurable menu displays, which include Debug, File Manager, Jugs, Status, and Teach Position.

1771-HM3A

The 1771-HM3A is a CMOS memory cartridge that was produced by Allen Bradley. This memory cartridge belongs to the PLC-5 line of products. This product has 218 kilobytes and 64K words of memory, with 85 kilobytes of actual user memory. This memory cartridge has a replaceable Lithium backup battery that can last around 3.5 years at normal temperatures, or a minimum of 1.25 years at 60 degrees Celsius.

1771-HMA

Product number 1771-HMA is an Allen Bradley memory cartridge for PLC-5 devices. This product has a user memory of 96 kilobytes and is backed up by a lithium-ion battery. It has a 2-millisecond per axis update time. The rated backplane current of the 1771-HMA is 1.7 amperes.

1771-HRA

The 1771-HRA is a resolver excitation module or driver module from the PLC-5 line of products designed by Allen Bradley.  It can generate 340 milliamperes at 5.2 volts DC and 228 milliamperes at 15 volts DC. This module is powered via a 1771-PS7 power supply with a peak power rating of 9.06 watts. It works with the IMC 120 servo control system and the IMC 123 motion control system.

1771-HS1

The 1771-HS1 is a servo control system module that also has the IMC 121 designation. This module controls analog machines by monitoring absolute position and feedback on a linear or rotary axis. It offers four +24 Volt DC fast output channels and four 24 Volt DC input monitoring channels. The module supports single-slot addressing and includes a 9-pin RS-232 port.

1771-HS3A

The 1771-HS3A is an Allen Bradley standard servo controller. It belongs to the PLC-5 series of products. It has 3 axes and is compatible with 1771 I/O chassis. It has a maximum input frequency rating of 250 kilohertz. This device also has a 120-volt fuse voltage. The pulse capture time of the 1771-HS3A is 50.9 milliseconds. This module can draw 1.7 amperes of backplane current.

1771-HS3CR

The Allen-Bradley-manufactured 1771-HS3CR is a 3-axis servo controller module with a 120-volt AC voltage rating and a 1-ampere rated current flow. On the front panel of the 1771-HS3CR servo controller module are many connection ports, along with a power port, an RS-232 port, as well as an axis e-stop port. This module has physical dimensions that measure 89 millimeters x 165 millimeters x 51 millimeters.

1771-HSAR

The 1771-HSAR is a servo controller module from the Bulletin 1771 series of products manufactured by Allen Bradley. It is equipped with a 15-pin AUX FDBK connector, which is used to power any connected auxiliary encoder. This connector also receives feedback signals from an auxiliary encoder and resolver rotor. In addition, the 1771-HSAR has a 96-kilobyte lithium battery memory cartridge. A power supply module with a 120/220 volts AC voltage rating is also included.

1771-HSN

The 1771-HSN is a PLC-5 series servo controller module. This device requires a 1771-HM or 1771-HMA plug-in memory cartridge. It has a fused voltage of 120 volts. Additionally, this product has a DC analog output of +/-10 volts. This is a single-slot device, meaning it only takes up one (1) slot when mounted in a chassis.

1771-HT

The 1771-HT termination panel module was designed and produced by Allen Bradley. This unit is a part of the PLC-5 line of products. It is a compact controller created for IMC 12X motion controllers. The 1771-HT is equipped with D-shell, pluggable screw-type connectors. This unit has four (4) input points and four (4) output points. It has LED indicators, as well as an RS-232 communications port.

1771-A1B

Allen-Bradley manufactured the 1771-A1B I/O rack plus chassis assembly for the PLC-5 series of products. This chassis assembly has a total of five (5) slots. This device has a rated current of 16 amperes and a voltage rating of 5.25 volts DC. The 1771-A1B may be mounted via its back panel.

1771-A2B

The 1771-A2B is a universal I/O chassis. It has eight slots available for connecting I/O modules. This chassis has dimensions measuring 14.0 inches x 12.4 inches x 7.6 inches, or 356 millimeters x 315 millimeters x 193 millimeters. In addition to that, this product weighs approximately 10 pounds or 4.5 kilograms. The maximum backplane current rating is 16 amperes at 5 Volts DC. This chassis is mounted using a panel mount on the rear.

1771-A3B

The 1771-A3B is a 1771 I/O chassis. It is used to mount PLC-5 I/O modules and offers 12 I/O slots supporting a backplane current of 8 amperes at 5 Volts DC. The chassis weighs 19 pounds and has dimensions of 13.5 inches x 19 inches x 8.5 inches.

1771-A3B1

The Allen-Bradley manufactured 1771-A3B1 is an I/O chassis for 1771 I/O modules. It has twelve (12) slots, connects modules to the backplane, and can be mounted via a panel. This module is primarily utilized to provide a site for the installation of PLC hardware, which includes power supplies, processing units, I/O units, and specialty modules.

1771-A4B

The 1771-A4B is a universal I/O chassis that is compatible with PLC-5 series modules. This chassis offers 16 I/O module slots and is rated for a maximum backplane current of 24 amperes at 5 volts DC. The chassis is mounted from the rear using a panel mount. It weighs 16 pounds (7.3 kilograms).

1771-ACN

Catalog number 1771-ACN is a ControlNet adapter module that was produced by Allen Bradley. This product is a part of the PLC-5 series of products. This module may be installed on a 1771 I/O chassis in the leftmost slot. It has a power dissipation rating of 5 watts, as well as a thermal dissipation rating of 17.06 BTU per hour. The 1771-ACN has a backplane current rating of 1.0 ampere at 5 volts.

1771-ACN15

The 1771-ACN15 is a ControlNet adapter module. It is used to control Remote I/O modules linked through a ControlNet network. The module includes a network access port to connect to local networks. It requires an input current of 1 ampere from the 1771 backplane. It has a 5-watt power dissipation rating.

1771-ACNR

The1771-ACNR is an I/O adapter module belonging to the PLC-5 line of products. This device enables 1771 I/O modules in 1771 chassis to communicate with each other. It has a 5 Mbps transmission rate. This unit requires the installation of a ControlNet PLC-5 controller in a remote ControlNet chassis. The 1771-ACNR has a backplane current requirement of 1 ampere at 5 volts. It has a 5-watt power dissipation rating, in addition to a 17.06 BTU/hr thermal dissipation rating.

1771-ALX

The 1771-ALX is a local I/O adapter module for use with 1771 Programmable Controllers. This module connects to PLC-5/40L or -5/60L controllers to form an extended-local I/O link. This allows the controller to scan up to 16 extended-local I/O chassis and provides quicker I/O updates as compared to remote I/O links. The extended-local I/O link is limited to 98.4 cable-feet, or the equivalent of 30 cable-meters. The adapter also allows disconnecting a rack without requiring a complete system shutdown.

1771-AM1

The 1771-AM1 is a 1771 I/O chassis. This chassis comes with an integrated power supply and adapter. The 1771-AM1 is a 1-slot chassis and has dimensions that measure 11.75 inches x 2.75 inches (298.5 millimeters x 69.9 millimeters). It has an approximate weight of 3 pounds (1.35 kilograms). The chassis provides 3 amperes for I/O modules. It comes with a built-in slow-blow fuse rated for 1.5 amperes.

1771-AM2

The 1771-AM2 is a two-slot I/O chassis with an integrated power supply and adapter. This chassis has dimensions that measure 5.0 inches x 11.75 inches x 7.375 inches (127 millimeters x 298.5 millimeters x 187.3 millimeters), and it weighs approximately 5 pounds (2.27 kilograms). It can accommodate two single-slot or one double-slot I/O module. The integral power supply has input voltages of 120 Volts AC and 220 Volts AC. It supplies 3.5 amperes of output current with 3 amperes available for I/O modules at 5 Volts. The adapter has baud rates of 57.6K and 115.2K available.

1771-ASB

The 1771-ASB is a remote I/O adapter module. It provides a data interface between PLC-5 programmable controllers and connected remote I/O modules. The adapter supports data transfer at 57.6K baud along cables as long as ten thousand (10,000) feet. Data from input and output modules is transferred in parallel while scanner data is transmitted in serial. The module supports up to 32 points of I/O and provides diagnostic indicators for help with troubleshooting.

1771-ASBK

The 1771-ASBK is an I/O adapter module with a universal port. This product is a part of the PLC-5 line of products. It has transmission speeds of 57.6 kbit/s, 115 kbit/s, and 230 kbit/s. It uses a 1771-WB field wiring arm to interface with field devices. The 1771-ASBK consumes 1.0 amperes at 5 volts direct current (DC).

1771-ASC

Produced by Allen Bradley, the 1771-ASC is a Remote I/O (RIO) adapter module from the PLC-5 product line. This product acts as an interface among RIO modules and controllers. It is UL, CSA, CE, and C-TICK approved and enables data transfer speeds of 57.6 kilobits per second (kbps), 115 kbps, and 230 kbps.

1771-CFM

The Allen-Bradley 1771-CFM is a programmable flowmeter instrument used in automated systems to calculate flow quickly and accurately after receiving a signal from flow measuring modules, as well as to calculate shaft speeds. The 1771-CFM is utilized in power generation, oil and gas, automotive, food and beverage, and pipeline industries/applications. It may also be used for any application requiring flow, as well as turbine, metering.

1771-CFMK

 The 1771-CFMK is a  flowmeter module with four (4) inputs, as well as four (4) outputs. This unit is compatible with PLC-2, PLC-3, PLC-5, and PLC-5/250 devices. The backplane current load of this device is 1 ampere, and it has a heat dissipation rating of 54.2 BTU/hr maximum.

1771-CP1

The 1771-CP1 is a power supply cable. It has a length of 1 foot (0.32 meters). This cable is used to connect the power supply module to a 1771-AB, -A2B, -A3B1, or –A4B I/O chassis. The cable is compatible with D-shell power connectors.

1771-CP2

Manufactured by Allen Bradley, part number 1771-CP2 is a power cable. This cable is a part of the PLC-5 line of products. It is used to connect I/O chassis to PLC-5 power supplies. The 1771-CP2 has a length that measures 1.52 meters or the equivalent of 5 feet. Additionally, the 1771-CP2 is compatible with the 1771-A3B I/O chassis.

1771-CP3

The 1771-CP3 is a connector cable designed by Allen Bradley. Belonging to the PLC-5 line of products, this cable has a length that measures 5.5 feet or the equivalent of 1.68 meters. This cable is used to connect the 1771-P7 remote power supply to a rack-mounted I/O chassis. It has a right-angle connector, making it easy to connect in tight locations and around machine corners.

1771-CT

Designed and manufactured by Allen Bradley, catalog number 1771-CT is a power supply paralleling cable. The length of this cable measures 3 feet and 8 inches. This cable is compatible with power supplies with catalog numbers 1771-P4S and 1771-P6S.

1771-CX1

The Allen Bradley 1771-CX1 is a Local I/O bus terminator cable. This cable belongs to the PLC-5 series of products. The maximum backplane current of the 1771-CX1 is 1.0 ampere. This cable has an electronic relay, making it a cost-effective option for power applications.

1771-CX15

The 1771-CX15 is an extended local I/O cable designed by Allen Bradley. This cable is compatible with PLCs, such as the 1785-L40L and the 1785-L60L. It connects two (2) chassis installed within 15 meters of each other, allowing for faster I/O updates than on a Remote I/O link.

1771-CX2

Produced by Allen Bradley, part number 1771-CX2 is an I/O bus terminal cable. This cable may be used as a bus terminator for the input and output points of a PLC-5 I/O module. It has a length of 2 meters and weighs approximately 0.9 kilograms. The cable is best used with the 1785-L40L/L60L local I/O modules.

1771-CX25

The 1771-CX25 is an I/O cable from Allen Bradley. It belongs to the PLC-5 line of products. This cable has a length that measures 25 meters. The 1771-CX25 is used to connect extended local I/O chassis and PLC-5 processor modules. The 1785-L60L and 1785-L40L processors are both compatible with this Allen Bradley cable.

1771-CX5

Catalog number 1771-CX5 is an interconnect cable. This cable was designed and manufactured by Allen Bradley as part of the PLC-5 line of products. The length of the 1771-CX5 measures 5 meters or the equivalent of 16.5 feet.

1771-DA

Product number 1771-DA is an ASCII I/O module that was produced by Allen Bradley. This module interfaces an ASCII device and a programmable controller with block transfer capabilities. This product is also used as a Data Communications Equipment (DCE). It has a buffer memory of 1.5K words or 3 kilobytes. Additionally, the backplane current requirement for the 1771-DA is 1.3 amperes.

1771-DB

The 1771-DB is a BASIC Module that enables BASIC-52 language features for processors in the 1771 I/O system. The module includes support for math functions and report generation. Two serial ports are provided for connectivity. Memory capacity includes 13 kilobytes of RAM and 32 kilobytes of EEPROM storage. Additionally, the backplane current load of the 1771-DB is 0.75 amperes at 5 volts direct current (DC).

1771-DBMEM1

Catalog number 1771-DBMEM1 is an EEPROM memory module that was produced by Allen Bradley/Rockwell Automation. This unit belongs to the PLC-5 line of products. This memory module has a memory capacity of 8 kilobytes. The 1771-DBMEM1 has an approximate scan time of 1.3 to 5 milliseconds.

1771-DBMEM2

The 1771-DBMEM2 is a memory module that can run BASIC and C programs. It has a 32-kilobyte EEPROM memory capacity. Additionally, the 1771-DBMEM2 may connect to a 1771-DB BASIC module to expand the user memory.

1771-DCM

The 1771-DCM is a direct communication module. It acts as a link between supervisory and local or remotely connected PLC-5 series processors. This module occupies one slot in a chassis and has a backplane current draw of 1.2 amperes. It supports discrete data and block transfer and is capable of baud rates up to 115.2K.

1771-DE

The 1771-DE is an absolute encoder module manufactured by Allen Bradley. This module is designed to be more responsive to a machine's position thanks to its enhanced scan mechanism. This module can have up to 12 encoder input bits. Additionally, it has eight (8) outputs. The maximum current requirement of the 1771-DE is 300 milliamperes. It has an input and output isolation rating of 1500 volts RMS.

1771-DL

The 1771-DL from Allen Bradley is a gray encoder input module. It has one (1) 8-bit absolute gray encoder input. The input sourcing current of this module is 6 milliamperes per bit at 10 volts DC and 15 milliamperes per bit at 27 volts DC. Additionally, the maximum input filter time delay for this unit is 1 millisecond. At 5 volts DC, the 1771-DL has a backplane current draw of 120 milliamperes.

1771-DMC

The 1771-DMC is a control coprocessor module. This module allows a 1771 controller system to use C, BASIC, and assembly programs. It has four serial ports for communication at rates of up to 38.4 kilobits per second and supports direct connection, as well as standalone operation. The module requires 2.5 amperes of backplane current.

1771-DMC1

Allen Bradley's 1771-DMC1 is a control coprocessor module used for communication. This module is equipped with several communication ports, such as RS-422-A, Ethernet TCP/IP, and more. It has a backplane current of 4 amperes at 5 Volts DC. Additionally, its update time is rated at 1 millisecond. The memory capacity of the 1771-DMC1 is 1 Megabyte. The physical dimensions of this product measure 89 millimeters x 165 millimeters x 51 millimeters.

1771-DR

Product number 1771-DR is an I/O logic controller that was produced by Allen Bradley. This unit has eight (8) single-ended, current-sinking inputs and four (4) single-ended, current-sourcing outputs. The input and output isolation ratings are rated at 1500 volts DC. At 5 volts DC, this device has a backplane current draw rating of 1.1 amperes.

1771-DRS1

The 1771-DRS1 is a static RAM chip produced by Allen Bradley/Rockwell Automation. This product may be installed in the two (2) SIMM sockets within a coprocessor module. The RAM capacity of this chip is 1 Megabyte. It can be stored at temperatures ranging from -40 to 85 °C. Additionally, the 1771-DRS1 can operate at temperatures ranging from 0 to 60 °C.

1771-DS

Catalog number 1771-DS is a latching input module with eight (8) direct digital inputs. This product operates at a voltage range of 10 to 27 volts DC. The backplane current load of the 1771-DS is 0.375 amperes. Additionally, the nominal input current rating of this device is 20 milliamperes at 227 volts DC. It has a maximum off-state current rating of 1 milliampere at 4 volts DC.

1771-DSX2

The 1771-DSX2 is a CPU module produced by Allen Bradley/Rockwell Automation. This product is used for the PLC-5 line of products. It has a PCMCIA slot, a parallel port, and three Com ports. This CPU module also has a PS/2 keyboard port and a VGA port. This product requires a current rating of 1.2 amperes at 5 volts direct current (DC).

1771-DW

The 1771-DW is a digital DC input module that operates on a 15- to 27-volt DC input. It is a standard Allen Bradley module. It includes 7 on/off DC inputs. The voltage category of this product is 10 to 60 volts DC, sink (source load). The backplane current rating of this module is 300 milliamperes. Additionally, the maximum DC off-state current rating of the 1771-DW is 300 milliamperes. This module can easily detect wire circuits and power supplies. 

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