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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-DXPS

The 1771-DXPS is an Allen Bradley control coprocessor module from the Bulletin 1771 series of products. This unit manages 7-bit reception even-parity communications. It is equipped with an ASCII display. This device has an off-state current rating of 1.0 milliamperes. The 1771-DXPS is compatible with the 1771-WA field wiring arm.

1771-ES

Produced by Allen Bradley, catalog number 1771-ES is a servo encoder feedback expander module. It delivers incremental feedback from a digital encoder. This product may be installed in a 1771 I/O chassis, only taking up two (2) slots. The 1771-ES utilizes a D/A converter (DAC) with a signed 12-bit resolution, and it has a max output voltage of +/-10 Volts direct current (DC) isolated.

1771-IA

The 1771-IA is an AC/DC analog input module. This product has a total of 8 inputs with a nominal input voltage rating of 120 volts alternating current (AC) or 125 volts direct current (DC). The on-state voltage ranges from 87 to 138 volts AC and 97 to 138 volts DC. The minimum on-state current is 5.2 milliamperes, while the off-state current limit is 2.8 milliamperes. The module has a maximum off-state voltage rating of 46 volts AC and 57 volts DC.

1771-IA2

Allen-Bradley manufactured the 1771-IA2 PLC-5 digital AC/DC input module. This device transforms AC signals from user devices to the logic level required by the processor and controls the status of corresponding bits in the PLC data table instantly. The 1771-IA2 module features 8 inputs and a voltage range of 120 volts AC/DC. It operates at a voltage ranging from 87 to 138 volts AC or 97 to 138 volts DC.

1771-IAD

The 1771-IAD is an AC/DC input module. It supports an input voltage of 120 Volts AC or 125 Volts DC. This module offers 16 input channels. The minimum on-state current is 5.95 milliamperes at 79 Volts AC and 1.5 milliamperes at 79 Volts DC. The on-state voltage range is between 79 Volts and 138 Volts AC or DC. The maximum off-state voltage is 43 Volts. Additionally, the off-state current limit is 3 milliamperes for AC power and 0.8 milliamperes for DC.

1771-IAN

The 1771-IAN is a 120 volt AC input module. This unit has 32 available output channels divided into 4 groups of 8 outputs. The nominal input current rating is 6.8 milliamperes and 8.2 milliamperes at a 50-hertz and 60-hertz input, respectively. This module draws up to 280 milliamperes from the backplane of a 1771-A1B to -A4B chassis and dissipates up to 4.5 watts of power.

1771-IB

The 1771-IB is a DC input module. It offers 8 DC inputs with a voltage ranging from between 10 Volts DC and 27 Volts DC. The nominal input current ranges from 8 milliamperes to 24 milliamperes and the module draws a maximum of 74 milliamperes from the backplane.

1771-IBD

The 1771-IBD is a DC input module offering 8 input channels. The supported input voltage range is between 10 and 27 Volts DC with a nominal input current ranging from 8 to 24 milliamperes. The module draws up to 74 milliamperes from the backplane and has a power dissipation rating of 5.7 watts maximum.

1771-IBDK

The 1771-IBDK is a DC input module with sixteen (16) sinking input channels. It was produced by Allen Bradley as part of the PLC-5 line of products. The voltage range for this DC input module is 10 to 30 VDC. It has a backplane current of 130 mA, a DC signal ON/OFF delay of 1.3 milliseconds, plus or minus 0.1 milliseconds.

1771-IBN

The 1771-IBN is a DC Sink Input Module that can be used with PLC-5 series controllers. This module has 32 input channels with an input voltage range between 10 and 30 Volts DC. It features input filtering to prevent voltage transients. This module can be installed in the 1771-A1B to –A4B or later chassis.

1771-IC

Product number 1771-IC is a digital DC input module. It was manufactured by Allen Bradley and belongs to the PLC-5 series of products. This product has eight (8) input channels. The input voltage of this device ranges from 42 to 56 volts direct current (DC). Additionally, the nominal input current is rated at 9 milliamperes at 48 volts DC. The rated input impedance of the 1771-IC is 4.5 to 5.5K ohms max for the on-state and 7 to 8K ohms max for the off-state.

1771-ID

Manufactured by Allen Bradley, product number 1771-ID is an isolated AC/DC input module with six (6) input channels. The on-state voltage of this Allen Bradley product ranges from 92 to 138 volts AC/DC at a frequency ranging from 47 to 63 hertz. It has a minimum on-state current of 5.0 milliamperes, a maximum off-state current of 1.7 milliamperes, and a maximum off-state voltage of 45 volts AC.

1771-ID01

The 1771-ID01 is an isolated AC/DC input module. It has 6 inputs operating at 220/240 volts AC or 240 volts DC. The nominal input current is rated at 3.5 amperes for AC operations and 3 amperes for DC operations. The backplane input current draw is rated at 74 milliamperes and the power dissipation does not exceed 2.4 watts.

1771-ID16

The 1771-ID16 is an AC/DC isolated input module, and it is compatible with any series B or later 1771 I/O chassis. It offers input filtering on all sixteen (16) input channels and accepts input voltages within the range of 74 to 138 volts AC or 105 to 138 volts DC. This module has a rated backplane current draw of 75 milliamperes maximum.

1771-ID16GM

Product number 1771-ID16GM is an isolated input module that was produced by Allen Bradley. This module has sixteen (16) input channels. This unit can be installed on a 1771-A1B through -A4B or later I/O chassis, as well as a 1771-AM1/AM2 chassis. The 1771-ID16GM has an input voltage range of 105 volts AC to 120 volts AC at a frequency of 47 hertz to 63 hertz. This unit has an isolation voltage rated at 1500 volts AC (channel-to-channel), in addition to 1500 volts AC (channel-to-backplane).

1771-IEC

The Allen-Bradley manufactured 1771-IEC is a PLC-5 analog input device that uses block transfer programming to interface with analog inputs and PLC processors. This product has an 8-bit resolution and conducts the necessary analog-to-digital conversions. This module also has a variety of applications, including temperature and pressure monitoring, level sensing, and flow metering.

1771-IFC

The 1771-IFC is an analog input module produced by Allen Bradley. It has 8 single-ended voltage and current inputs. It has a 16-bit resolution and performs analog-to-digital conversions. It operates at voltages ranging from 1 to 5 VDC, 0 to 10 VDC, -10 to 10 VDC, and 0 to 5 VDC. Additionally, its current ranges from 4 to 20 mA, 0 to 20 mA, and -20 to 20 mA.

1771-IFE

The 1771-IFE is an analog input module. It supports 16 single-ended or 8 differential inputs. The module is compatible with voltage or current inputs. It converts analog inputs to 12-bit binary or 4-digit BCD values. The module supports input currents between -20 and +20 milliamperes and voltage inputs between -10 to +10 Volts DC. Each channel has individually selectable input ranges.

1771-IFF

The 1771-IFF is an Allen Bradley analog input module. This module has eight (8) differential input points or sixteen (16) single-ended input points. Additionally, this product supports both natural binary and BCD data formats. It has several voltage ranges, including 0 to 5 volts DC, 1 to 5 volts DC, -5 volts DC, and -10 volts DC. Its current ranges include 4 to 20 mA, 0 to 20 mA, -20 to 20 mA, and-40 to 40 mA. It has a 750 mA backplane current load.

1771-IFMS

The 1771-IFMS is an Intrinsically Safe Fast Millivolt input module. It provides an interface between analog input signals and PLC-5 controllers with block transfer functions. This module supports up to eight differential analog inputs with an input voltage range of 0 to 50 millivolts. It can convert the analog inputs to 15-bit binary or 4-digit BCD data.

1771-IG

Catalog number 1771-IG is a TTL input module that was designed and produced by Allen Bradley, and it belongs to the PLC-5 line of products. This product has a total of eight (8) input points. The input signal delay of this module is less than 1 millisecond. The backplane current rating of the 1771-IG is a maximum of 122 milliamperes. Additionally, it has an isolation voltage rating of 1500 volts AC RMS.

1771-IGC

Product number 1771-IGC is a TTL input module from Allen Bradley. This module is a part of the PLC-5 line of products. This product has eight inputs with a voltage category of 5 volts direct current (DC). This device operates at a voltage ranging from 5.0 to 5.3 volts DC. Additionally, the 1771-IGC has a 122-milliamperes backplane current rating. This product may be installed in a 1771 I/O chassis.

1771-IGD

Product number 1771-IGD from Allen Bradley is a TTL input module. This module has sixteen (16) inputs with voltage ratings of 2.0 to 5.25 volts DC (ON) and -0.2 to +0.8 volts DC (OFF) with high signal detection and -0.2 to +0.8 volts DC (ON) and 2.0 to 5.25 volts DC (OFF) with low signal detection. The 1771-IGD has an input signal delay of less than 1 millisecond. It also has a backplane voltage rating of 5 volts DC and a backplane current rating of 130 milliamperes maximum.

1771-IH

The 1771-IH is a DC Input Module. It has 8 available input channels with a voltage ranging from 24 Volts DC to 48 Volts DC. Additionally, the nominal input current rating ranges from 8.4 milliamperes to 20 milliamperes. The maximum backplane current draw is 74 milliamperes and the module’s maximum power dissipation is rated at 8.1 Watts.

1771-IJ

The 1771-IJ is an encoder/counter module. It uses an external power supply rated at 5 volts DC. This module is compatible with TTL inputs and has two open-collector outputs without built-in pull-up resistors. The module has one counter and supports single and dual-channel operations with a pulse rate of 50 kilohertz.

1771-IK

Catalog number 1771-IK is an encoder/counter module designed by Allen Bradley. This device utilizes a 12 to 24 volts direct current (DC) external power supply to properly operate. The recommended temperature for this product's operation ranges from 32 to 140 degrees Fahrenheit.

1771-IL

The 1771-IL is an analog input module. It offers 8 differential inputs that are fully isolated. The module accepts voltage inputs in the range of -10 volts to +10 volts and current inputs in the range of -20 milliamperes to +20 milliamperes. It has a data resolution of 16-bit binary. The module takes up a single slot, and it draws 1.1 amperes of current from the backplane along with a power dissipation rating of 5.5 watts.

1771-IM

Catalog number 1771-IM is an Allen Bradley input module from the PLC 5 product series. The voltage category of this module is 220/240 volts AC/DC. The operating voltage of this unit ranges from 184 to 276 volts AC/DC. The 1771-IM has eight (8) inputs. The backplane current rating of this input module is 75 milliamperes. This device can be mounted via a rack mount.

1771-IMD

Produced by Allen Bradley, part number 1771-IMD is a 220-volt AC/DC input module. This module has 16 input points. The nominal rated input current of the 1771-IMD is 10.4 milliamperes at 220 volts AC at 60 hertz, 9.9 milliamperes at 220 volts AC at 50 hertz, and 0.6 milliamperes at 220 volts DC. The on-state voltage range of this unit is 184 to 250 volts AC and 166 to 230 volts DC. The backplane current rating of the 1771-IMD at 5 volts DC is 250 milliamperes.

1771-IN

Catalog number 1771-IN is an AC input module. This unit was manufactured by Allen Bradley / Rockwell Automation. The 1771-IN has eight (8) input points with a nominal input voltage of 24 volts AC at 47 - 63 hertz. The nominal input currents of this module include 7 milliamperes at 12 volts AC, 18 milliamperes at 24 volts AC, and 22 milliamperes at 28 volts AC. The backplane current of this input module is rated as 80 milliamperes at 5 volts DC. The 1771-IN has a minimum power dissipation of 0.4 watts, as well as a maximum power dissipation of 5.4 watts.

1771-IND

Product number 1771-IND is an AC/DC input module. It was designed and produced by Allen Bradley / Rockwell Automation. This input module has sixteen input points. The nominal voltage of the 1771-IND is 24 volts AC at a frequency of 50/60 hertz, as well as 24 volts DC. The backplane current of this module is rated as 250 milliamperes at 5 volts DC (+/- 5%). Additionally, the isolation voltage of the 1771-IND is 1500 volts AC (RMS).

1771-IQ

Product number 1771-IQ is an Allen Bradley DC input module. This unit has eight (8) input points. The voltage supplied by the user to operate this device must range from 5 volts DC to 30 volts DC. The nominal input current of the 1771-IQ is 5 milliamperes at 5 volts DC and 25 milliamperes at 30 volts DC. This module's input impedance is rated at 1.2 K ohms nominal. Additionally, the backplane current of the 1771-IQ is a maximum of 150 milliamperes.

1771-IQ16

Product number 1771-IQ16 is an isolated input module with a 24 VDC input voltage rating. This unit is a product of Allen Bradley. The 1771-IQ16 has a total of sixteen (16) inputs. The user-supplied voltage range is 10 - 32 VDC. This device has a 3.2K ohm maximum input impedance rating. The backplane current of the 1771-IQ16 is a maximum of 100 milliamperes.

1771-IR

The 1771-IR is an RTD input module. The module includes six resistance temperature detector input channels that support Celsius, Fahrenheit, and resistance in Ohmic inputs. It offers a resolution of up to 0.1 degrees or 10 milliohms. The module supports Platinum and Copper RTDs. It has an input current draw of 950 milliamperes from the 1771 backplane at 5 volts DC.

1771-IS

Catalog number 1771-IS is a DC multiplexer input module that was produced by Allen Bradley. The switch power requirement of this device, which is supplied by the module, is 13 milliamperes nominal at 5 volts DC per switch. In addition, the module current requirement for the 1771-IS, at 5 volts DC from the backplane, is a maximum of 800 milliamperes.

1771-IT

The 1771-IT is a fast response DC input module. It features an input signal delay of just 0.6 milliseconds and provides 8 input channels for the user. The supported input voltage lies within the range of 12 to 24 volts DC with an input current of 8 to 24 milliamperes. The maximum power dissipation rating is 5.9 watts and the current draw from the backplane is rated at 74 milliamperes.

1771-IV

Part number 1771-IV is an input module from Allen Bradley's PLC-5 line of products. It converts DC signals from user devices to the logic level required by a processor. Besides that, this module has direct control over the state of corresponding bits in the PLC data table. The 1771-IV has eight (8) inputs and a voltage category of 10 to 60 volts DC. This device operates at a voltage ranging from 12 to 24 volts DC.

1771-IVN

The 1771-IVN is a DC input module with 32 inputs divided into 4 groups of 8 inputs each. This Allen Bradley module operates on 10-30 Volts. Its voltage category is 10-60 VDC, source (sink load). It consumes 280 milliamperes of backplane current. Its peak off-state current rating is 1.7 milliamperes, while its DC signal delay-on range is 6 milliseconds, +/- 2 milliseconds. This module is compatible with the 1771-WN wiring arm.

1771-IXE

The 1771-IXE is a Thermocouple and Millivolt Input module. 8 input channels are provided with differential analog inputs. Compatible thermocouple types include Type E, J, K, T, R, and S. It has an input voltage range between -100 to +100 millivolts DC. The module has a temperature resolution of one degree Celsius or Fahrenheit. The millivolt resolution is 10 microvolts. It features software-based calibration and built-in diagnostics.

1771-IXHR

The 1771-IXHR is a high-resolution thermocouple and millivolt input module. It has 8 available inputs and supports four inputs of two different types. This module supports various thermocouple types, including types B, E, J, K, R, S, and T. The input voltage range of this unit is between -100 and +100 millivolts DC. The module has a cold junction temperature range between 0 to 60 degrees Celsius.

1771-KA2

The 1771-KA2 is a communication adapter designed by Allen Bradley. It interfaces PLC-2 processors to the DH modules. This device has communication rates of 57.6k baud to Data Highway, 9.6k baud to the programming terminal or a second module, and 91.2k baud to the processor. The power supply requirement rating for the 1771-KA2 is 5 volts DC at 1.2 amperes maximum.

1771-KE

Catalog number 1771-KE is a communication controller module manufactured by Allen Bradley. This module is equipped with Data Highway and RS-232-C communication ports. The communication rates of these ports are 57,600 bits per second for the Data Highway port and switch-selectable from 110 to 19,200 bits per second for the RS-232-C port. The power requirements for the 1771-KE include a current rating of 1.2 amperes and a voltage rating of 5 volts DC.

1771-KF

Catalog number 1771-KF is a communication controller module designed by Allen Bradley. This unit is equipped with a Data Highway port with a communication rate of 57,600 bits per second, as well as an RS-232-C port with a communication rate that is switch-selectable from 110 to 19,200 bits per second. The power source for this unit must be supplied by the user.

1771-KG

The 1771-KG is an Allen Bradley communication adapter. It acts as a bridge between RS-232-C devices and PLC-2 processors, providing a secure interface between both. This module can also communicate over the Data Highway network by using the DH port. Aside from that, its voltage range is +/- 99.99 mV. The 1771-KG also includes a 91.2 kilobaud processor port.

1771-LI

The 1771-LI is an interface module for loop controllers. It belongs to the PLC-5 product series by Allen Bradley. It has 8 differential isolated inputs. This device has a 16-bit binary resolution across the entire voltage range. The 1771-LI's internal scan rate for all 8 input channels is 50 milliseconds. The input voltage of this module ranges from 1 to 5 volts DC, 0 to 5 volts DC, -5 to 5 volts DC, and -10 to 10 volts DC.

1771-M1

Product number 1771-M1 is a stepper controller module manufactured by Allen Bradley. This product is a part of the 1771-QA stepper positioning assembly. The backplane current requirement for this module is a maximum of 1.75 amperes at 5 volts DC. This unit can be installed on a Bulletin 1771 I/O rack, in which it only takes up one (1) slot.

1771-M3

Product number 1771-M3 is a digital servo controller module. This module is a part of the PLC-5 line of products from Allen Bradley. This module can be installed in a 1771 I/O chassis. It requires 1.75 amperes of backplane current to operate correctly. Additionally, this device has a 10-volt DC maximum isolated output voltage. It also has a D/V converter with a signed 12-bit converter resolution.

1771-NA

Product number 1771-NA is a node adapter board that was designed by Allen Bradley as part of the PLC-5 line of products, This board is compatible with PLCs that support block transfer functions for transmitting analog signals. It is also compatible with Bulletin 1395 drives from Allen Bradley.

1771-NA01

The 1771-NA01 is a node adapter board designed by Allen Bradley. This device is a part of the PLC-5 product series. It is compatible with Bulletin 1771 modules and programmable controllers. This board is supplied with +5 volts through its compatible drive. It uses 6-pin male connectors for mounting. Aside from that, it features two (2) LED status indicators.

1771-NB4S

The 1771-NB4S is a source/sink analog input module. It is able to supply loop power to connected 2-wire transmitters. It features two input channels, as well as two output channels. The input channels support a current range of 0 to 25 milliamperes and the output channels have a current range between 4 and 20 milliamperes. No external resistors are required by this module. It is capable of twice the resolution with external resistors when loop power is provided externally.
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