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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-OX

Allen Bradley manufactured the 1771-OX power relay contact output module as part of the PLC-5 series of products. This module has four (4) normally open (NO)/normally closed (NC) outputs. The voltage rating of this Allen Bradley device is 0 to 250 volts AC RMS and 0 to 175 volts DC. Additionally, the current rating of this device is 2 amperes. The isolation voltage of the 1771-OX is rated at 2500 volts AC RMS.

1771-OYL

Product number 1771-OYL is a relay contact output module manufactured by Allen Bradley. This module has eight output channels which are divided into four groups of two output channels each. The voltage rating of this product is 0 to 24 volts AC RMS or 0 to 24 volts DC. It also has a current rating of 100 milliamperes per output max. Additionally, the 1771-OYL has a maximum backplane current of 420 milliamperes.

1771-OZC

Catalog number 1771-OZC is a contact output module. This device is a product of Allen Bradley and belongs to the PLC-5 series of products. It has 8 normally open (NO) output channels. This module operates on 0 to 24 volts direct current (DC). This module can draw 420 milliamperes of current from the backplane.

1771-OZL

Catalog number 1771-OZL, which was produced by Allen Bradley, is a relay contact output module with a voltage rating of 0 to 24 volts AC RMS or 0 to 24 volts DC. It has eight outputs divided into four groups of two outputs each. The maximum current rating of this device is 100 milliamperes per output. Additionally, the isolation voltage of this unit is rated at 1000 volts between the open contacts and 1500 volts between the coil and contact.

1771-P10

The 1771-P10 is a power supply module for a 1771 I/O chassis. It requires two slots in the chassis. The module has an input voltage rated at 125 Volts DC with a power draw of 72 watts. The power supply is capable of an output current of up to 8 amperes at 5 Volts DC. It comes with an integrated 1.5-ampere slow-blow fuse. This unit is capable of running in parallel with one other 1771-P10 module.

1771-P2

The 1771-P2 is an auxiliary power supply module. It has a nominal input voltage of 120 volts at 0.75 amperes or 220 to 240 volts AC at 0.38 amperes. The power supply can provide up to 6.5 amperes of current at 5 volts DC. It features overvoltage and undervoltage protection, as well as overcurrent protection. This module can either be installed on the left side of a 1771 chassis or it can be connected using a cable with a length of up to 5 feet.

1771-P3

Catalog number 1771-P3 is a power supply module that was designed and produced by Allen Bradley. This module is a part of the PLC-5 series of products. It may be installed in one (1) slot of a 1771 I/O chassis. This module has a nominal input voltage rated at 120 volts AC and an input voltage range of 97 to 132 volts AC RMS. The weight of the 1771-P3 is approximately 1.6 pounds.

1771-P4

Part number 1771-P4, which was produced by Allen Bradley as part of the PLC-5 product series, is a power supply module. It has a nominal input voltage of 120 volts AC, as well as an input voltage range of 97 to 132 volts AC RMS. Additionally, the rated input power of the 1771-P4 is 57 watts.

1771-P4R

The 1771-P4R is a redundant power supply module. It supports an input voltage of 120 Volts AC with a current of 1 ampere. Up to four modules can be used in one system, allowing for an output current of 20 amperes. One module produces an output voltage of 5 Volts DC at 8 amperes. The backplane current is rated at 300 milliamperes. The unit comes with a 1.5-ampere, 250 Volt fuse.

1771-P4S

The 1771-P4S is a power supply module compatible with the 1771 I/O system. It has a nominal input voltage rating of 120 Volts AC at 0.9 Amperes. The backplane output voltage is provided at 5 Volts and the maximum output current is limited to 8 Amperes. This power supply supports parallel connection with another unit to increase the available current. It has a power dissipation rating of 16 Watts. It comes with a built-in fuse rated at 1.5 Amperes.

1771-P4S1

The 1771-P4S1 is a PLC-5 power supply unit from Allen Bradley featured in the Bulletin 1771 series of products. This module supplies power to the backplane of PLC-5 series controllers. The nominal voltage rating of this AC power supply is 120 volts AC. Additionally, the operating voltage range is 85 to 120 volts AC. The 1771-P4S1 has an input frequency rating that ranges from 47 to 63 hertz.

1771-P5

Produced by Allen Bradley, product number 1771-P5 is a power supply module. This product belongs to the PLC-5 line of products. The nominal input voltage of the 1771-P5 is 24 volts direct current (DC) while the input voltage range is 20.5 to 30 volts direct current (DC). Additionally, this unit has a rated input power of 57 watts. Furthermore, the 1771-P5 has an output current of 8 amperes at 5 volts direct current (DC) maximum.

1771-P5E

The 1771-P5E is a DC power supply module compatible with a 1771 chassis. This module occupies two slots in the chassis. Input power is accepted at a 24 Volt DC voltage and the unit outputs up to 8 amperes of current at 5 Volts. This power supply supports parallel connections with another 1771-P5 or –P5E module. It comes with a built-in 5-ampere fuse and offers an adjustable power loss time delay at 13.6 milliseconds or 60 milliseconds.

1771-P5EK

The 1771-P5EK is an Allen Bradley power supply that is a part of the Bulletin 1771 product range and is compatible with the PLC-5 line of products. This power supply has a 24-volt DC nominal voltage. Its input voltage range is 20.5 to 30 volts DC. Additionally, the 1771-P5EK has a fuse rating of 5 amperes.

1771-P6R

The 1771-P6R redundant power supply from Allen Bradley has an input voltage of 220 volts AC at a frequency of 50 to 60 hertz and a current rating of 0.5 amperes. Additionally, the 1771-P6R has an input voltage range of 194 to 240 volts AC. This Allen Bradley product even has an output voltage rated at 5 volts DC at 8 amperes. The isolation voltage of this power supply was tested to withstand 1000 volts for one (1) minute.

1771-P6S

Catalog number 1771-P6S is a power supply module. Manufactured by Allen Bradley, the 1771-P6S is a part of the PLC-5 series of products. The input voltage rating of this product is 220 volts AC at 0.5 amperes with an input voltage range of 194 to 264 volts AC RMS. Additionally, this power supply has an output voltage of 5 volts DC from the backplane with a maximum output current of 8 amperes.

1771-P6S1

The 1771-P6S1 power supply module is a part of Allen Bradley's PLC-5 line of products. It has an input voltage rated at 200 volts AC at 0.53 amperes. Additionally, this unit has an input range of 170 to 240 volts AC RMS. Furthermore, this product has a rated power dissipation of 16 watts, as well as a rated thermal dissipation of 47.8 BTU/hr. The 1771-P6S1 has an isolation voltage tested to withstand 1000 volts AC for a duration of 60 seconds.

1771-P7

The 1771-P7 is an AC power supply. It is rated for a supply voltage of 120 volts AC or 220 volts AC. The rated input power of this device is 108 watts. This Allen Bradley power supply's output voltage rating is 5.06 volts DC with a maximum output current of 16 amperes. It does not support parallel installation. The unit comes with a built-in 3-ampere fuse and has been tested for an isolation voltage of up to 1200 volts AC.

1771-PA

The Allen-Bradley created 1771-PA is a power supply module from the PLC-5 line of products. This power supply has a nominal voltage rating of 120/220 VAC and provides input voltages ranging from 97 to 132 volts AC and 195 to 264 volts AC. The 1771-PA power supply module has a rated backplane output current of 16 amperes at 5 volts DC. The physical dimensions of this product measure 115 millimeters x 317 millimeters x 160 millimeters.

1771-PM

Allen Bradley's 1771-PM is a specialized I/O module. This module is part of the PLC-5 product line. It can be used as a clutch and brake module in control systems, linking to up to 4 operator stations simultaneously. This unit is fuse-protected and works as a stand-alone device. This module's backplane current is rated at 1.2 amperes, and the backplane output is rated at 16 amperes at 5 volts direct current (DC).

1771-PS7

The 1771-PS7 is a 120/220 volt AC power supply module. It is compatible with the 1771-A1B, -A2B, -A3B, -A4B, and –A3B1 chassis models. It does not support parallel operation. The module can provide up to 16 amperes of current at 5 volts DC, and it has an input power rating of 108 watts. It includes a 3-ampere normal blow fuse.

1771-PSC

Catalog number 1771-PSC is part of the PLC-5 product line. It is a standard power supply chassis with 4 slots for power supplies and other devices. It is a stand-alone chassis, but it can be connected to a 1771 I/O chassis with the help of a cable. The fuse rating of this product is 3 amperes. The 1771-PSC has a rated backplane output current of 16 amperes at 5 volts.

1771-PSCC

Catalog number 1771-PSCC is a power cable manufactured by Allen Bradley. This cable belongs to the PLC-5 series of products. The 1771-PSCC has a length that measures 5.5 feet and weighs approximately 1 pound. This cable is rated for direct current (DC) voltages.

1771-QB

The 1771-QB is a Linear Positioning Module that is compatible with PLC-5 processors. This module provides high-speed control of linear closed-loop single or dual-axis systems. It offers an update rate of just 2 milliseconds. Seven digital inputs and two digital outputs are available per axis. Two analog outputs are also provided to connect servo motor controllers or valves. The module has a 12-bit resolution with a range of 1 to 100 milliamperes and 0.1 to 10 volts.

1771-QD

Manufactured by Allen Bradley, the 1771-QD is an injection control module. It is used for controlling an injection molding machine. This device has three (3) analog inputs and two (2) analog outputs. The backplane current rating of this module is 0.5 amperes. The dimensions of the 1771-QD measure 115 mm x 317 mm x 160 mm or 4.5 inches x 12.4 inches x 6.3 inches.

1771-QDC

The 1771-QDC plastic molding module is a specialized process device that is used for clamping, injecting, and molding machines. It is part of the Bulletin 1771 series of products from Allen Bradley. This device has four analog inputs, four analog outputs, a scan auto-tune PID, and a 2-millisecond velocity update time. The backplane current of this module is rated as 1.2 amperes.

1771-QH

The 1771-QH is a force control module by Allen Bradley. It is part of the Bulletin 1771 line of products. It is a single-axis hydraulic controller that allows for high-speed transitions between speed and pressure controls. It is a single-slot module with four (4) analog outputs. It has a binary I/O resolution of 12 bits. This device has a 2-millisecond servo loop update time.

1771-QI

The 1771-QI is a co-injection module also known as a plastic molding module. It is an Allen Bradley module available in the PLC 5 series. It supports 4 analog inputs and 4 analog outputs. Also, it has a 12-bit binary I/O resolution. Its I/O isolation is 1500 Volts RMS between the chassis and swingarm terminals. The operating frequency range of the module is 47 to 63 Hz. Apart from that, it is compatible with the 1771-PSCC remote 5.5 ft.

1771-RT44

Catalog number 1771-RT44 is a remote termination panel and cable from the PLC-5 series of products. It has four (4) analog inputs and four (4) analog outputs. This module can handle current inputs. It can also be used for voltage inputs with the help of a resistor. This module supports the use of a 1771-WF field wiring arm, and it is protected by a normal blow fuse with a rating of 3 amperes at 250 volts.

1771-RTP1

The 1771-RTP1 is a remote termination panel. This panel was designed for use with the N series of PLC-5 modules and can be mounted on a DIN1 or DIN3 rail. The panel includes cold junction compensation that can be used with thermocouples.

1771-RTP3

The 1771-RTP3 is an Allen Bradley remote termination panel and cable module. It is a stand-alone module weighing 0.2 kilograms. This product has eight (8) I/O modules and a 5.5-foot 1771-PSCC remote cable. This panel is designed with a standard DIN1 or DIN3 mounting rail. The 1771-RTP3 has an operating frequency range of 47 to 63 hertz. This unit also has a fuse rating of 3 amperes at 250 volts.

1771-RTP4

The 1771-RTP4 is a remote termination panel, or RTP, from Allen-Bradley's PLC-5 line of products. The 1771-RTP4 remote termination panel may accommodate up to 8 I/O units at once. This device operates at a frequency ranging from 47 to 63 hertz.

1771-SDN

Part number 1771-SDN is a DeviceNet scanner module that was designed by Allen Bradley. It may be installed on a 1771-A1B to -A4B or later I/O chassis. The baud rate of this module is 125 kilobits per second. The backplane current power consumption at 5 volts DC is 0.8 amperes, while the DeviceNet power consumption at 24 volts DC is 50 milliamperes.

1771-SIM

Product number 1771-SIM is an Input/output simulation module that was designed and produced by Allen Bradley. This unit has eight (8) input simulating switches, as well as eight (8) output indicators. It has a backplane current rated at 300 milliamperes at +5 volts DC.

1771-SN

Product number 1771-SN is a sub I/O scanner module from Allen Bradley. It is part of the PLC-5 line of products. This product has a rated backplane current of 1.2 amperes. Additionally, the 1771-SN has a power dissipation rating of 7 watts max at 1.2 amperes, in addition to a thermal dissipation rating of 24 BTU max at 1.2 amperes. This device supports daisy-chain and dropline configurations.

1771-SPI

Part number 1771-SPI is an SPI protocol interface module manufactured by Allen Bradley. This unit supports up to thirty-two (32) devices connected on the SPI link. Additionally, this module has a backplane current rating of 1.3 amperes at 5 volts direct current (DC). The 1771-SPI is compatible with the field wiring arm with catalog number 1771-WA.

1771-TCM

The 1771-TCM is a Temperature Control module that is compatible with PLC-5 series processors. The module has eight individually isolated temperature control loops. The supported thermocouple types include types B, E, J, K, R, S, and T. Each PID loop also has a range of -100 to +100 millivolts. The module converts the data into a 16-bit value and offers a resolution of 0.1 degrees.

1771-TCMR

Catalog number 1771-TCMR is a temperature control module produced by Allen Bradley. This product has eight individually isolated PID loops and a 16-bit or 15-bit plus sign bit A/D resolution. The RTD excitation current of this device is typically 1 milliampere. The underrange and overrange thresholds are 0.9 ohms and 650 ohms, respectively.

1771-VHSC

The 1771-VHSC is a Very High-Speed Counter module. This unit is compatible with all 1771 I/O chassis. It is suitable for use in industrial applications and is able to count pulses from encoders or pulse generators, as well as store data in BCD or binary form. The module offers four input and eight output channels. Single-phase counter inputs are supported up to 1 Megahertz and differential inputs have a maximum frequency of 250 kilohertz. The current-sourcing output channels are isolated in four groups of two and have a voltage range between 5 and 24 volts DC.

1771-WA

The 1771-WA, which was manufactured by Allen Bradley, is a thermoplastic PLC-5 field wiring arm with 10 connectors and 8 I/O ports. The 1771-WA wire arm's primary role is to assist in securing the integrity of a connection. It may be seen in various applications requiring a 24 and 220 volts AC/DC voltage.

1771-WB

The 1771-WB from Allen Bradley/Rockwell Automation is a PLC-5 field wiring arm that supports analog I/O modules with 12 terminals and gold contacting plates. This device allows for a maximum of eight (8) I/O points. It is made of thermoplastic, used for analog applications, and does not need an external power supply. The 1771-WB has physical dimensions that measure 4.5 inches x 12.4 inches x 6.3 inches.

1771-WC

Allen-Bradley 1771-WC is a PLC-5 series wiring arm for TTL low current I/O modules. This product is made of thermoplastic and contains 8 I/O points and 10 terminals. This wiring arm is conformally coated. The 1771-WC has dimensions measuring 4.5 inches x 12.4 inches x 6.3 inches, and it has a weight of approximately 0.1 pounds.

1771-WD

Product number 1771-WD is a field wiring arm that was designed and manufactured by Allen Bradley/Rockwell Automation. This product belongs to the PLC-5 series of products. This field wiring arm supports a maximum of eight (8) I/O and 12 terminals. The physical dimensions of the 1771-WD measure 4.5 inches x 12.4 inches x 6.3 inches.

1771-WF

The 1771-WF is an Allen Bradley field wiring arm module that supports 8 inputs and outputs. It is a suitable module for low resistance applications and does not require external power. There are 18 terminals on the module and gold-plated contacts. The recommended screw torque for this device is 7 to 9 lb-in. This wiring arm is conformally coated and is a lightweight module. Its signal delay-off range for AC operations is 29 milliseconds +/- 8 milliseconds, whereas for DC operations, the range is 30 milliseconds +/- 7 milliseconds.

1771-WG

The Allen-Bradley manufactured 1771-WG is a PLC-5 wiring arm for I/O modules with 21 gold connection terminals and 16 I/O pins. The 1771-WG wire arm has a conformal coating and is appropriate for low-resistance operations. Its primary role is to aid in connection integrity.

1771-WH

The 1771-WH is a wiring arm that is compatible with modules in the 1771 PLC-5 series. This unit has 21 terminals. This is a 16-point wiring arm that can be field-wired.

1771-WHF

Part number 1771-WHF is a fused field wiring arm from Allen Bradley. The purpose of the 1771-WHF is to provide individual output circuit protection. The 1771-WHF utilizes a 3-ampere fuse for each output. Additionally, a maximum continuous current of 2 amperes per fuse should not be exceeded. The dimensions of this wiring arm measure 209 mm x 31 mm x 51 mm (height x width x depth).

1771-WI

The Allen-Bradley 1771-WI is a wiring arm that has a maximum of eight I/O and eighteen terminals. This product belongs to the PLC-5 series of products. This wiring arm is typically utilized in thermocouple applications. The recommended screw torque for this product is 7 to 9 lb-in.

1771-WN

The 1771-WN from Allen Bradley is a field wiring arm belonging to the PLC-5 series of products. This product supports 32 I/O maximum and 40 terminals. The contact plating of this field wiring arm is made of Tin. It has an approximate weight of 0.3 pounds with dimensions that measure 4.5 inches x 12.4 inches x 6.3 inches.

1771-WS

The 1771-WS is a weigh scale module. It is able to read weight values from 350-ohm strain-gage load cells and transfer them to PLC-5 processors. The module supports up to 8 load cells, but requires external power if more than four cells are used. The backplane current load of this unit is 1.5 amperes maximum at 5 volts direct current (DC).
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