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Allen Bradley - PLC

SLC 500

The Allen-Bradley SLC 500 is a compact and powerful family of programmable controllers designed for a range of standalone and distributed control and monitoring applications. The family is modular chassis-based and includes a processor module, I/O modules, communication modules, and power supply. SLC 500 series provides up to 64 KB of configurable storage capability for data and programs and more than 60 types of I/O modules with a variety of networking options. The family allows configuration of up to 3 local chassis offering a maximum of 30 local I/O modules. The chassis is available in 4, 7,10, and 13-slot versions, and multiple chassis can be connected together via interconnection cables. Remote I/O locations can be connected via ControlNet, DeviceNet, or Univeral I/O links using communication interface modules. The family uses RSLogix 500 ladder logic programming software providing powerful, flexible, and convenient editors and diagnostic tools. SLC 500 provides 5 processor types namely SLC 5/01, SLC 5/02, SLC 5/03, SLC 5/04 and SLC 5/05. The controllers allow additional accessories including memory modules, adapter sockets, and program storage devices. Components of the SLC 500 family are designed to work in robust environmental conditions with operation in a temperature range of 0 to 60 °C (32 to 140 °F) and humidity levels of 5 to 95% without condensation. The components can withstand vibration during operation of up to 1 g @ 5 to 2000 Hz as well as the shock of 30 g (3 pulses, 11 ms). SLC 500 is UL, c-UL, CE, C-Tick, and KC certified for all applicable directives.

Collage of images depicting SLC 500 units

SLC 500 Selection Guide

The SLC 500 is a series of small, chassis-based modular programmable controllers (PLCs) and I/O modules. This control platform is designed and built by Allen-Bradley/Rockwell Automation for industrial environments. It is capable of handling extremes in mechanical shock and vibration, as well as withstanding a wide range of humidity and temperature conditions.

The SLC 500 is available with a maximum of 64K of program/configurable data memory. Hence, the SLC 500 processors can provide power, flexibility, and expanded I/O options to take on a wide range of control applications that previously required larger and more expensive control solutions. Also, SLC 500 modular I/O systems provide more than 60 types of I/O modules, which you can use to customize your control application with a broad selection of I/O options, including discrete, analog, and numerous specialty I/O modules from Rockwell Automation and third-party partners.

Overall, an SLC 500 control system can address high-speed processes and discrete control applications from a single control platform. As either a Stand-Alone control system with a processor and I/O modules connected in a single 1746 chassis having a power supply, or as a Distributed control system that can utilize distributed I/O, multiple controllers connected across networks, or I/O in multiple control platforms connected over multiple I/O links and distributed in many locations. This makes the system ideal for fast-paced control operations like packaging machines and bottling lines.

All the aforementioned features have helped to make the Allen-Bradley SLC 500 the premier small logic control system available in the market today. More than a decade after its introduction, the SLC 500 system is still a gold standard of small-size, full-featured programmable logic control systems that are currently in use. Therefore, whenever you’re selecting an SLC 500 system, you must specify the right components to get the most out of its features. This article will provide you with a checklist to use as a guide to completing the specifications of your SLC 500 system.

Selection Criteria

With SLC 500 modular control systems you select the appropriate I/O modules, Communication Modules, Processor, Chassis, and Power Supply selections to fit your application. You can use the following selection checklist for SLC 500 Systems as a guide to completing your control system specification, depending on your application requirements.

Select I/O Modules

SLC 500 I/O Modules are available in a variety of voltage options and densities. Some modules have individually isolated inputs/outputs, diagnostic features, or electronic fuses for protection. You can choose from over 60 digital, analog, and specialty SLC 500 I/O modules to control discrete, analog, and temperature signals. Moreover, you can select any of the available specialty modules for your high-speed counting, temperature, hydraulic, motion and positioning, or press control applications. Note, that the selected specialty module should fit directly into the 1746 chassis.

This complete and varied assortment of I/O modules will provide you with the flexibility and speed you need to create and configure a custom solution for your SLC 500 control application. Select the SLC 500 I/O modules that exactly match your application requirements. You can also include combination modules that will allow you to have inputs and outputs in a single slot for optimal use of the available chassis space.

Some of the SLC 500 I/O modules provided by Rockwell Automation are available in the following categories:

  • 1746 Digital I/O Modules: These modules are available in a broad range of densities including 4-, 8-, 16-, and 32-points. They can interface to an assortment of AC (alternating current), DC (direct current), and Transistor–Transistor Logic (TTL) voltage levels. The 1746 digital output modules are available with solid-state AC/DC and relay contact type outputs. For added flexibility, combination digital I/O modules with 6 inputs/6 outputs, 4 inputs/4 outputs, and 2 inputs/2 outputs are also available. Generally, 1746 digital I/O are high-quality modules designed and tested for industrial applications; you can thus use them in a variety of harsh industrial environments. For example, fast response DC inputs and high-density 32-point DC I/O modules allow SLC 500 systems to be applied in a broader spectrum of industrial control applications.
  • 1746 Analog I/O Modules: These modules feature user-selectable current or voltage inputs, diagnostic feedback, backplane isolation, and Removable Terminal Blocks (RTBs). The input channels of the 1746-NI4, 1746-NIO4I, and 1746-NIO4V analog modules are filtered to eliminate high-frequency noise and provide a high resolution of 14- to 16-bit that is range-dependent. Also, all 4-channel analog output modules (1746-NO4I, 1746-NO4V) provide 14-bit resolution and a conversion rate of 2.5 milliseconds.
  • SLC 500 Thermocouple/mV Input Modules: They include the 1746-NT4, 1746-NT8, and 1746-INT4 modules. All these modules accept millivolt analog signals which cannot be detected by standard 1746 analog modules. Also, all the modules in this category interface to different thermocouple types, including J, K, T, E, R, S, B, and N.
  • RTD Resistance Input Modules: They include 1746-NR4 and 1746-NR8 RTD modules. These modules provide four filter frequency options, allowing you to select the level of input noise filtering that is appropriate for your application and the surrounding environment.
  • High-Speed Counter Modules: The 1746-HSCE module provides bidirectional counting of high-speed inputs from various high-speed switches and quadrature encoders.
  • Blow Molding Modules: The 1746-BLM module is an intelligent I/O module that is used on most types of blow molding machines to provide up to 4 axes of closed-loop parison control.
  • Stepper Control Modules: The 1746-HSTP1 is a single-axis, single-slot stepper module capable of providing a maximum of 250 kHz pulse train outputs to be used in micro-stepping applications. It operates with a variety of SLC 500 processors.

I/O Wiring Systems

After you have selected the type of SLC 500 I/O modules that will meet your precise control needs, check their wiring requirements. Some SLC 500 I/O modules require Interface Modules (IFMs) and/or pre-wired 1492 cables.

Select Communication Modules/Devices

Rockwell Automation offers a variety of SLC 500 communication modules and devices which support different communication networks, including DeviceNet, ControlNet, EtherNet/IP, DH-485, DH+, Universal Remote I/O, and Serial Networks. You should determine the communication network requirements for your application and select the necessary SLC 500 communication modules/devices. Also, include the appropriate communication cables to interface the selected communication modules to the controller and other devices.

  • EtherNet/IP: This is an open industrial networking standard that uses commercial, off-the-shelf physical media and Ethernet equipment. The Ethernet network is well-suited for high-speed transfer of data between information systems and/or multiple controllers, program maintenance, and Intranet/Internet connections. Hence, an Ethernet network will provide you with many possibilities because you can maximize communication between a great variety of equipment from multiple vendors. Please take note that for an Internet connection, you will need the TCP/IP protocol. In the SLC 500 family, EtherNet/IP connectivity is provided by the SLC 5/05 processors. Ethernet communications in SLC 5/05 processors take place at 10Mbps or 100Mbps, providing you with a high-speed network for data acquisition, operator interface, peer-to-peer messaging, program upload/download, and online editing.
  • ControlNet: This network enables intelligent, high-speed control devices to exchange information required for programming, remote device configuration, operator interface, work-cell coordination, supervisory control, and troubleshooting. ControlNet connectivity in SLC 500 systems is provided by the following interfaces:
    • ControlNet Messaging Module (1747-KFC15): It provides unscheduled ControlNet network connectivity for SLC 5/03 and higher processors. With unscheduled messaging, you can access and edit your SLC 500 controller program or send peer-to-peer messages over the ControlNet network.
    • ControlNet Scanner (1747-SCNR): This module provides scheduled ControlNet connectivity for SLC 5/03 and higher processors. With scheduled messaging, you can use the SLC processor to control real-time I/O events on the ControlNet network.
    • ControlNet Adapters (1747-ACN15 and 1747-ACNR15): These adapter modules provide both unscheduled and scheduled ControlNet connections for 1746 I/O modules. They enable SLC 500 systems to control up to three 1746 Chassis (with 30 slots) of analog, discrete, and specialty I/O modules over a ControlNet network.
  • DeviceNet: This network provides a significant reduction in wiring and high-speed access to plant-floor devices and data. The following interfaces provide DeviceNet connectivity for SLC 500 control systems:
    • DeviceNet Scanner Module (1747-SDN): This module acts as an interface between SLC 5/02 or higher processors and DeviceNet devices. Through the DeviceNet network, the module can monitor the operational status, download configuration data, read inputs, and write outputs.
    • DeviceNet Interface Device (1761-NET-DNI): The DNI (DeviceNet Interface) gets the full-duplex DF1 commands and bundles them up in the DeviceNet protocol before sending them over to a target DNI. The target DNI acts as an interface for DF1 end devices to the DeviceNet network. When removing the DeviceNet information, it passes the DF1 commands to the end device.
  • Data Highway Plus (DH+): This network supports data acquisition and remote programming for plant-floor control applications. You can use DH+ communication modules if you want to implement a peer-to-peer network for your SLC 500 system.
  • DH-485 Network: This communication network enables plant-floor devices to share information. Through the DH-485 network, SLC 500 application programs can perform data acquisition, monitor device and process parameters and statuses, including alarm and fault detection, download/upload PLC programs over the network, and perform supervisory control functions.
  • Universal Remote I/O: This is a control network that provides connections between SLC 500 controllers and remote or built-in remote I/O adapters. Its typical applications range is from simple I/O links with 1746 I/O and SLC 500 controllers to distributed control systems with a variety of other devices and multiple I/O controllers that communicate with a supervisory controller. In SLC 500 systems, Universal Remote I/O connectivity is provided by the following interfaces: the 1747-SN remote I/O scanner, the 1747-BSN backup remote I/O scanner, the 1747-ASB remote I/O adapter module, and the 1747-DCM direct communication module.
  • Serial Network: SLC 5/03, SLC 5/04, and SLC 5/05 processors have a built-in serial port that is configurable for RS-422A, RS-423, or RS-232 compatible communications via a serial network. You can use the serial port to connect devices that communicate using the DF1 protocol, such as programming workstations, communication modules, modems, or other Encompass partner devices, as well as devices that send and receive ASCII characters, such as bar-code readers, printers, and ASCII terminals.

Select an SLC Processor

Select the most appropriate SLC 500 processor for your application based on memory, speed (performance), number of supported I/O, communication options, and programming requirements.

The available Allen-Bradley SLC 500 Processors from which you can choose include:

  • SLC 5/01 Processors (1747-L511 and 1747-L514): These processors provide a comprehensive set of 51 Ladder Logic programming instructions in a modular hardware configuration, with the choice of 1K or 4K program memory size. They support DH-485 communication channels, for peer-to-peer response only. An SLC 5/01 processor can control from 4 I/O points up to 3940 I/O points. In modular 1746 I/O systems, you can configure such a processor with a maximum of three chassis (30 slots in total). Note that the 1747-L511 processor requires a capacitor backup (battery backup is optional), while the standard for the 1747-L514 processor is a battery backup.
  • SLC 5/02 Processors (1747-L524): These processors provide increased processor speed over the SLC 5/01 with additional instructions, additional peer-to-peer communication options, and increased diagnostics. They provide a program memory size of 4K instructions, a PID feature for closed-loop process control, index addressing, an Interrupt capability of a 10-millisecond Selectable Timed Interrupt (STI), user fault routines, and battery-backed RAM. SLC 5/02 Processors support DH-485 communication channels for both initial and response peer-to-peer communication. They also have the capability of solving 32-bit signed math functions.
  • SLC 5/03 Processors (1747-L531 and 1747-L532): These are high-performance processors, as they provide faster throughput times of 1 millisecond for a typical 1K user-defined program. SLC 5/03 Processors can provide 32K, 16K, or 8K of user memory. With these processors, you can connect to external intelligent devices without the need for additional interface modules, as they offer an inbuilt RS-232 channel. Modular I/O systems with SLC 5/03 processors can control a maximum of 4096 I/O points and they can be configured with a maximum of 3 chassis (30 slots in total).
  • SLC 5/04 Processors (1747-L541, 1747-L542, and 1747-L543): These processors provide DH+ communications in addition to the baseline functionality of the SLC 5/03 processors. As the standard DH-485 port is replaced with a DH+ port, communications through the DH+ network are 3 to 12 times faster than DH-485 communications. This provides high-speed SLC 5/04-to-SLC 5/04 communications with increased performance levels and direct connection to PLC-5 controllers. In addition, the SLC 5/04 processors provide program memory options of 16K, 32K, or 64K. They can control up to 4096 I/O points with up to 3 chassis (30 slots in total).  A key feature of these processors is an SLC 5/04P option, which contains algorithms specifically designed for the control of Plastics Machinery.
  • SLC 5/05 Processors (1747-L551, 1747-L552, and 1747-L553): These provide similar control functionality as the SLC 5/04 processors but use standard Ethernet communications instead of DH+ communications. They support Ethernet communications at 10 Mbps or 100 Mbps, providing you with a high-performance network for data acquisition, peer-to-peer messaging, operator interface, program upload/download, and online editing. These controllers offer a variety of program memory sizes (16K, 32K, or 64K), allowing you to closely match your SLC 500 application needs. Also, you can configure modular I/O systems with SLC 5/05 Processors with up to 3 chassis (30 slots in total), as well as a maximum of 4096 I/O points.

Select an SLC Chassis

The SLC 500 chassis hosts the I/O modules and the processor. Each chassis in your system should have a power supply. The power supply is mounted on the left side of the 1746 chassis. While the first slot in the first chassis (in case of 3 or 2 chassis) is set aside for the SLC 500 processor or any of the following adapter modules: 1747-ASB, 1747-ACNR15, or 1747-ACN15.

Modular style SLC 500 chassis provide flexibility in system configuration. You can choose any of the following four sizes of chassis: the 1746-A4 (4-slot chassis), the 1746-A7 (7-slot chassis), the 1746-A10 (10-slot chassis), and the 1746-A13 (13-slot chassis).

Note, that tools are not required to insert or remove the SLC 500 processor or I/O modules as all of the components of your SLC 500 system should slide easily into the chassis along with the provided guides. You can connect several chassis to form a chassis system (with a maximum of 3 chassis) using interconnect cables. Therefore, ensure that you select the right sizes of chassis to interconnect cables.

Select an SLC 500 Power Supply

When configuring an SLC 500 modular system, every 1746 chassis requires a power supply to power the I/O modules and the processor. Ensure you use the available power supply loading worksheet to provide sufficient power to your SLC 500 system. Careful power supply selection results in the best performance. However, excessive loading of the power supply outputs can lead to power supply shutdown or premature failure of the entire SLC 500 system. Also, whenever you’re selecting a power supply, make sure that you account for the future expansion needs of your SLC 500 system.

Allen-Bradley provides seven different SLC 500 power supplies: three AC and four DC. You can configure the AC power supplies to operate between 120 and 240 volts AC. No special wiring is required for AC power supplies since you can easily select either 120 or 240 volts AC with a jumper wire.

SLC 500 Power Supplies
  • 1746-P1: This power supply has a line voltage of 85 to 132 volts AC and 170 to 265 volts AC at a frequency of 47 to 63 hertz. The internal current capacity is rated at 2 amperes at 5 volts DC and 0.46 amperes at 24 volts DC.
  • 1746-P2: This power supply has a line voltage of 85 to 132 volts AC and 170 to 265 volts AC at a frequency of 47 to 63 hertz. The internal current capacity is rated at 5 amperes at 5 volts DC and 0.96 amperes at 24 volts DC.
  • 1746-P3: This power supply has a line voltage of 19.2 to 28.8 volts DC. The internal current capacity is rated at 3.6 amperes at 5 volts DC and 0.87 amperes at 24 volts DC.
  • 1746-P4: This power supply has a line voltage of 85 to 132 volts AC and 170 to 265 volts AC at a frequency of 47 to 63 hertz. The internal current capacity is rated at 10.0 amperes at 5 volts DC and 2.88 amperes at 24 volts DC.
  • 1746-P5: This power supply has a line voltage of 90 to 140 volts DC. The internal current capacity is rated at 5 amperes at 5 volts DC and 0.96 amperes at 24 volts DC.
  • 1746-P6: This power supply has a line voltage of 30 to 60 volts DC. The internal current capacity is rated at 5 amperes at 5 volts DC and 0.96 amperes at 24 volts DC.
  • 1746-P7: This power supply has a line voltage of 10 to 30 volts DC. The internal current capacity for a 12-volt DC input is 2 amperes at 5 volts DC and 0.46 amperes at 24 volts DC. Additionally, the internal current capacity for a 24-volt DC input is 3.6 amperes at 5 volts DC and 0.87 amperes at 24 volts DC.

Select a Lithium Battery Assembly

You should also select a replaceable 1747-BA Lithium Battery to provide backup power for the processor RAM. If you’re using SLC 5/01 Processors, the selected battery should provide backup power for at least 5 years for the 1747-L511 processor and 2 years for the 1747-L514 processor. In case you’re using either SLC 5/02, SLC 5/03, SLC 5/04, or SLC 5/05 processors, select a Lithium battery that can provide backup power for approximately two years.

Browse our selection of SLC 500 units

AutomationStop.com's online catalog offers one of the largest selections of preowned SLC 500 units in the world.

1746-HT

The 1746-HT is a termination panel from the SLC 500 series of products and manufactured by Allen Bradley. It gives the SLC servo control system more flexibility and includes an E-stop connection for the E-stop ring. This panel can be rack-mounted and has a 250-kHz input frequency. Its backplane current consumption is 200 milliamperes at 5 Volts. Additionally, this unit draws a current of 90 milliamperes at 24 volts DC.

1746-A10

Designed and produced by Allen Bradley, the 1746-A10 is a series B SLC chassis. The maximum backplane current of this chassis is 5.1 volts direct current (DC) at 10 amperes and 24 volts direct current (DC) at 2.88 amperes. This chassis has a total of ten (10) slots and ay be mounted via a panel mount. The physical dimensions of the 1746-A10 measure 39.7 cm x 17.1 cm x 14.5 cm (width x height x depth). Additionally, the approximate weight of this chassis is 1.45 kilograms.

1746-A13

The Allen-Bradley 1746-A13 is a 13-slot modular chassis designed to enable back-panel mounting of up to thirteen 1746 I/O Modules. The chassis provides backplane current and housing to the modules. Its backplane current is rated as 5.1 volts DC at 10 amperes and 24 volts DC at 2.88 amperes. The 1746-A13 chassis has 8 mounting tabs and can be mounted directly to an enclosure subpanel. The chassis is an open-style device and has dimensions measuring 50.2 cm x 17.1 cm x 14.5 cm.

1746-A2

The Allen Bradley 1746-A2 is a 2-slot expansion chassis module from the SLC 500 series of products. It can house a 1747 SLC CPU, as well as a 1746 SLC I/O adaptor module and 1746 I/O modules. It is mounted on the left side of the chassis and enables Back-Panel mounting with an open enclosure. It has a backplane current of up to 10 amperes at 5.1 VDC and 2.88 amperes at 24 VDC.

1746-A4

Part number 1746-A4 is a four-slot I/O chassis from Allen Bradley's SLC 500 series of products. This chassis weighs about 1.7 pounds (0.75 kilograms) and measures 6.73 inches x 6.97 inches x 5.71 inches. The maximum backplane current rating of the 1746-A4 is 10 amperes at 5.1 volts DC and 2.88 amperes at 24 volts DC. The 1746-A4 I/O chassis may be mounted via a panel mount.

1746-A7

The 1746-A7 is a 7-slot chassis module that is part of the SLC-500 product line. This Allen Bradley chassis has 2 expansions and 4 mounting tabs. It is compatible with the 1746-C9 and 1746-C7 expansion cables. The power rating is 5.1 volts DC at 10 amperes and 24 volts DC at 2.88 amperes. The operating temperature of this unit ranges from 0 to 60 degrees Celsius.

1746-BAS

The 1746-BAS is an Allen Bradley SLC basic module from the SLC 500 product range. It connects to modems, printers, HMIs, and other devices using the RS-232,-423, - 422, -485, and DH-485 communication ports. The module includes 24 KB of battery-backed RAM for storing data and user applications. It supports standard NEMA noise immunity and can work at 32 to 140 degrees Fahrenheit.

1746-BAS-T

The 1746-BAS-T is a basic communication module used within the SLC 500 product family.  It can fit into a single slot on any 1746 chassis and be used in modular and fixed SLC hardware. It has a power rating of 150 milliamps at 5 volts and 40 milliamps at 24 volts, with a temperature range of 32 to 140 degrees Fahrenheit.

1746-BTM

The Allen-Bradley 1746-BTM is an SLC 500 barrel temperature control module. The module is compatible with SLC 5/02, 5/03, 5/04, and 5/05 processors, and it can be connected to J and K type thermocouples at the input side. The 1746-BTM has four (4) backplane and channel-to-channel isolated input channels. The isolation rating of this device is 1000 volts transient or 150 volts AC continuous from channel-to-channel or channel-to-backplane.

1746-C16

The Allen-Bradley 1746-C16 is a ribbon cable, commonly known as a chassis interface cable used in SLC 500 Modular Systems configurations. The cable connects one modular hardware chassis to the next within an enclosure. It is the longest among the SLC 500 programmable controller rack connecting cables, measuring 1.27 meters (50 inches).

1746-C7

The 1746-C7 is a Chassis Interconnect Cable that connects the controllers and the chassis. The cable was designed by the Allen Bradley, and it is part of the SLC 500 series. Chassis that are compatible with this cable include the 1746-A4, 1746-A7, 1746-10, and 1746-A13, which can be connected in any order. The cable is 0.5 feet (0.15 meters) long and rated at 110 milliamperes at 5VDC and 85 milliamperes at 24VDC.

1746-C9

Catalog number 1746-C9 is an interconnect cable for programmable controller racks. This cable is a part of the SLC 500 line of products from Allen Bradley. The 1746-C9 has a length that measures 914.4 millimeters (36 inches).

1746-FIO4I

The 1746-FIO4I is a fast analog I/O module that is featured in Allen Bradley's SLC 500 series of products. Its two differential analog input channels can handle current signals within a range of 0 to 20 milliamperes and voltage signals within a range of 0 to 10 volts DC. It features two 0-20 mA current output channels in addition to its differential channels. The module has a 12-bit digital resolution.

1746-FIO4V

The 1746-FIO4V is an analog combination module with 2 input and 2 output channels. This module is a part of the SLC-500 series, which was manufactured by Allen Bradley. It has a 0-20 mA input range, a maximum absolute input voltage of +/- 7.5V DC or 7.5V AC RMS, and a maximum absolute input current of 0-30 mA on its input channels. This module's output channels have a -10 to +10VDC -1 LSB range.

1746-HS

The Allen-Bradley 1746-HS is the IMC 110 motion control system. It is a single-axis, closed-loop servo positioning module that requires a single slot and works with SLC 500 programmable controllers. The 1746-HS features an SLC 500 interface, a connector panel interface, four fast I/O terminals, and a 10-volt power supply. With a loop closure rate of 5 milliseconds, it provides great precision and system responsiveness.

1746-HSCE

The Allen-Bradley 1746-HSCE is an SLC 500 single-channel high-speed counter module. It is designed to connect high-speed switching devices to SLC 500 PLC controllers. The module is equipped with a single 16-bit count input channel that can receive bidirectional input pulses with a maximum input frequency of 50 kilohertz. The module has four open-collector outputs. The 1746-HSCE counter module has an update time of 1.8 milliseconds maximum, and it operates in 3 modes: range, rate, and sequencer.

1746-HSCE2

Product number 1746-HSCE2 is an Allen Bradley high-speed counter module. This is a smart module with the ability to count in both directions (positive and negative). With input voltage ranges of 4.2V DC to 12V DC and 10V DC to 30V DC, it features inputs such as B1, B2, A1, Z1, A2, and Z2. It also contains eight (8) outputs, which include four (4) virtual outputs and four (4) real 5-30V DC sourcing outputs. Signals with a minimum pulse width of 475 ns, a minimum pulse separation of 200 ns, and a maximum input frequency of 1 Megahertz are accepted by the input ports of this unit. This module has a 1000V backplane isolation and a 500V output isolation. Each I/O channel of the unit has an input voltage bracket of 4.2V DC to 12V DC when operated at 5V DC, as well as 10V DC to 30V DC when operated at 24V DC.

1746-HSRV

The Allen-Bradley 1746-HSRV is an SLC 500 servo control module. It has three 24-volt DC input channels and one 24-volt DC output channel. This control module allows SLC processors to interface with compatible servo drives by programmable velocity settings within the range of ±10 volts DC. It allows the execution of motion commands over a range of sixteen motion profiles and thirty-two segments. The 1746-HSRV module can be operated in command or configuration mode.

1746-HSTP1

Catalog number 1746-HSTP1 is a stepper controller module from the SLC 500 series of products. This module was designed and produced by Allen Bradley/Rockwell Automation. This stepper controller module has a total of one (1) axis. The pulse train switch rating of this product is 7 to 30 milliamperes at 5 VDC. It has a speed range of 1 to 250,000 pulses per second, in addition to an acceleration rating of 1 to 2000 pulses per second. Furthermore, the 1746-HSTP1 has an acceleration step rate of 4 milliseconds or less. The power requirements of this product include a backplane current of 2 amperes at 5 VDC and a user power of 9 amperes max at 24 VDC.

1746-IA16

The Allen-Bradley 1746-IA16 is an SLC 500 digital AC input module that is designed to provide a real-time interface between SLC processors and discrete devices. This module has 16 input channels and 16 points per common. Its operating voltage range is specified as 85-132 volts AC. This single-slot module can be mounted into an SLC 500 chassis. It has a rated backplane current consumption of 0.085 amperes at 5 volts DC. The module has an ON delay time of 35 milliseconds and an OFF delay time of 45 milliseconds.

1746-IA4

Product number 1746-IA4 is a digital input module that was manufactured by Allen Bradley as part of the SLC 500 line of products. It has four (4) input channels. The voltage category of this unit is 100/120 volts AC signal input. Additionally, the operating voltage of the 1746-IA4 ranges from 85 to 132 volts AC at a frequency ranging from 47 to 63 hertz. This module has an input current rating of 12 milliamperes at 120 volts AC (nominal).

1746-IA8

Produced by Allen Bradley, part number 1746-IA8 is a 100/120-volt AC signal input module. This module has eight (8) input points with eight (8) input points per common. The 1746-IA8 operates via a voltage rated at 85 to 132 volts AC. This device also operates via a frequency of 47 to 63 hertz. At 5 volts DC, the 1746-IA8 consumes 50 milliamperes of current from the backplane. This input module has a rated input current of 12 milliamperes at a nominal voltage of 120 volts AC.

1746-IB16

The Allen-Bradley 1746-IB16 is a digital DC input module. This module was designed for SLC 500 processors and has sixteen (16) input points with sixteen (16) points per common. Its operating voltage ranges from 10 volts DC to 30 volts DC, and its backplane current is rated at 50 milliamperes at 5 volts DC. The 1746-IB16 operates with a maximum signal ON/OFF delay time of 8 milliseconds. Additional features of the 1746-IB16 module include a color-coded removable terminal block (RTB), optical isolation, surge protection, and input filtering.

1746-IB32

The 1746-IB32 is an SLC 500 input module designed by Allen-Bradley. This is a 24-volt direct current (DC) input module with thirty-two (32) sinking input channels. This device accepts signal voltages that range from 15 to 30 volts direct current (DC) at 50 degrees Celsius and 15 to 26.4 volts direct current (DC) at 60 degrees Celsius. The 1746-IB32 consumes 0.05 amperes of backplane current at 5 volts. This product has a 1500-volt AC isolation rating from the backplane for a duration of one (1) minute. The maximum on and off signal delays for this unit is 3 milliseconds. The 1746-IB32 has a minimum on-state voltage rated at 15.0 volts DC. Additionally, it has a maximum off-state voltage rating of 5.0 volts DC and a maximum off-state current rating of 1.5 milliamperes.

1746-IB8

Catalog number 1746-IB8 is a DC input module from Allen Bradley. This module is a part of the SLC 500 line of products. This module is rated at 24 volts DC signal input (sinking) with a total of eight input channels. Additionally, this unit has eight input channels per common. The 1746-IB8 operates at a voltage ranging from 10 volts DC (sinking) to 30 volts DC (sinking). The off-state voltage rating of this input module is 5.0 volts DC maximum. Additionally, the off-state current rating is 1 milliamperes maximum. The 1746-IB8 has a nominal input current rated at 8.0 milliamperes at a voltage of 24 volts DC.

1746-IC16

The 1746-IC16 is a discrete module from Allen Bradley's SLC 500 product category. This is a DC input module with a voltage category of 48 volts DC signal input (sinking). It features 16 input channels, as well as a removable terminal block (RTB). At 55 °C, its operational voltage ranges from 30 to 60 volts DC sinking, while at 60 °C, its operational voltage ranges from 30 to 55 volts DC sinking.

1746-IG16

Product number 1746-IG16 is an SLC 500 digital DC TTL input module from Allen Bradley. This input module contains sixteen (16) input channels with a 4.5–5.5 VDC voltage range. This module fits into one (1) slot of an SLC 500 chassis. The 1746-IG16 can be used in conjunction with other SLC 500 modules. However, correctly grouping each module type is advised for faster troubleshooting and greater management of wiring routing. The 1746-IG16 is simple to use.

1746-IH16

Designed and produced by Allen Bradley, part number 1746-IH16 is an SLC 500 digital input module. This module has a total of sixteen (16) input points, with sixteen (16) points per common. The voltage category of this device is 125 volts DC signal input (sinking). Additionally, it has a rated operating voltage of 90 to 146 volts DC.

1746-IM16

The 1746-IM16 is part of Allen Bradley's SLC 500 product line. It is a type of digital AC input device that's designed for industrial use. It features sixteen (16) 200/240 volts AC input channels and can be installed using an RTB into any SLC 500 I/O chassis. The input module has sixteen (16) common points and a 170 to 265-volt AC input operating voltage at a frequency range of 47 to 63 hertz. At 5 volts DC, the 1746-IM16 has a current backplane rating of 0.085 amperes.

1746-IM4

The 1746-IM4 is an SLC 500 4-point digital input module from Allen-Bradley. Digital input/output modules contain a discrete signal that is either on or off, such as the input signal for limit switches or the output signal for a relay. The 1746-IM4 input module has 4 inputs and can be installed on an SLC 500 controller chassis. It operates on 170 to 265 volts AC at a 47 to 63-hertz frequency.

1746-IM8

The 1746-IM8 by Allen Bradley is an SLC 500 digital input module with a total of 8 input channels. It functions at a voltage rating of 200/240 volts AC. This module consumes 0.050 amperes at 5 volts DC. Additionally, it has an off-state current draw rating of 2 milliamperes maximum.  This product operates at temperatures ranging from -25 to 60 degrees Celsius.

1746-IN16

The Allen Bradley 1746-IN16 is a digital AC/DC input module from the SLC 500 line of products. This device has a total of 16 inputs and 16 points per common. The operating voltage of this product ranges from 10 to 30 volts DC (sinking) and 10 to 30 volts AC. Additionally, the backplane current consumption of this device is rated as 0.085 amperes at 5 volts DC and 0.0 amperes at 24 volts DC.

1746-INT4

Catalog number 1746-INT4 is an Allen Bradley thermocouple/millivolt isolated input module belonging to the SLC 500 line of products. It receives analog data obtained from thermocouples and/or millivolt analog data and stores it for retrieval by SLC 500 processors. This module consumes a rated backplane current of 110 milliamperes and 85 milliamperes at 5 volts DC and 24 volts DC, respectively. Additionally, it consumes a rated backplane power of 0.6 watts maximum.

1746-IO12

The 1746-IO12 is an I/O combination module by Allen-Bradley. It is part of the SLC 500 series. Its inputs and relay contact outputs are rated at 120 Volts AC. The module operates on 85 and 132V AC. Its output voltage range is 5-265V AC at 47-63 Hz or 5-125V DC at 47-63Hz.

1746-IO12DC

The 1746-IO12DC, which was designed and produced by Allen Bradley, is a digital combination I/O module. This module is a part of the SLC 500 family of products. This unit has a total of twelve (12) I/O channels, which are split up into six (6) input channels and six (6) output channels. The operating voltage for the inputs ranges from 10 to 30 volts DC, while the operating voltage for the outputs ranges from 5 to 265 volts AC or 5 to 125 volts DC. This unit's backplane current consumption is 0.080 amperes at 5 volts DC and 0.060 amperes at 24 volts DC.

1746-IO4

Allen Bradley's 1746-IO4 is a digital I/O device and is part of the SLC 500 family of products. This unit has two inputs and two outputs. Its inputs require 120 volts AC of power while the relay contact outputs require 100/120 volts AC of power. This device can operate at a voltage ranging from 85 volts AC to 132 volts AC at a frequency ranging from 47 hertz to 63 hertz. Additionally, the output voltage of this device ranges from 5 volts AC to 265 volts AC at a frequency ranging from 47 hertz to 63 hertz, or 5 volts DC to 125 volts DC.

1746-IO8

The 1746-IO8, commonly known as a combination module, is a digital I/O module. It can be used as an input and output module. This digital module has four (4) 120 VAC inputs and four (4) relay contacts outputs with four points each. It operates via an 85 to 132 volts AC operating voltage. This device can be adjusted in any slot of the 1746 I/O chassis except for slot 0.

1746-ITB16

Product number 1746-ITB16 is a DC input module from Allen Bradley's SLC 500 line of products. This unit has sixteen channels and accepts a nominal voltage of 24 volts direct current (DC). This device can operate at a voltage that ranges from 10 volts DC to 30 volts DC. This input module draws 0.085 amperes of current from the backplane. At 24 volts DC, the max off-state voltage is rated at 5 volts DC, and the nominal input current is rated at 8 milliamperes.

1746-ITV16

Catalog number 1746-ITV16 is a digital input module from Allen Bradley. This module belongs to the SLC 500 line of products. The voltage category of this product is 24 volts DC signal input (sourcing). It has sixteen (16) input channels with sixteen (16) input channels per common. The 1746-ITV16 operates at a voltage that ranges from 10 volts DC to 30 volts DC (sourcing). At 5 volts Dc, the 1746-ITV16 consumes a backplane current rated at 0.085 amperes. This product has a maximum on signal delay of 0.3 milliseconds, while the maximum off signal delay is 0.5 milliseconds. The rated input current of the 1746-ITV16 digital input module is 8 milliamperes at 24 volts DC (nominal).

1746-IV16

The 1746-IV16 is an Allen Bradley 24-volt DC sourcing input module from the SLC 500 line of products. This module has sixteen (16) input channels, as well as a 10- to 30-volt direct current operational voltage range. It has one (1) 16-channel group with a 0.085-ampere backplane current draw. At 24 volts, the maximum off-state voltage is 5 volts, and the nominal input current is 8 milliamperes. The 1746-IV16 module is in charge of collecting and storing digitally converted analog data in its data table, which can then be recalled by all of the SLC processors, both fixed and modular. It may link up to 8 sensors or actuators for a variety of applications.

1746-IV32

Catalog number 1746-IV32 is a digital input module belonging to the SLC 500 series of Allen Bradley products. This module is rated at 24 volts, and it has thirty-two (32) input points. Additionally, this device has eight (8) input points per common. At 50 degrees Celsius, the 1746-IV32 operates at a voltage ranging from 15 to 30 volts DC. At 60 degrees Celsius, however, this module operates at a voltage ranging from 15 to 26.4 degrees Celsius. The isolation from the backplane is rated at 1500 volts AC for one (1) minute for the 1746-IV32. It has a 5.1-milliampere input current (nominal) at a 24-volt DC voltage.

1746-IV8

Part number 1746-IV8 is an Allen Bradley digital input module from the SLC 500 product line. This product is rated at 24 volts DC signal input (sourcing). The 1746-IV8 has eight (8) input channels and eight (8) input channels per common. This unit operates properly at a voltage range of 10 to 30 volts DC (sourcing). This device, at 5 volts DC, consumes 0.05 amperes of backplane current. The 1746-IV8 has a maximum signal delay for both ON and OFF of 8 milliseconds. This product has an input current rating of 8 milliamperes at 24 volts DC (nominal).

1746-MPM

The Allen Bradley 1746-MPM is a mold pressure module whose primary purpose is to extract and process cyclic injection molding data, which is then projected onto computers. Furthermore, by responding to alerts, the 1746-MPM aids in the monitoring of critical molding parameters. The 1746-MPM can be used with the Pro-Set 200 injection molding control system to achieve a quicker setup time for optimum component quality and to maintain production run quality.

1746-N2

Allen Bradley's 1746-N2 slot filler module is part of the SLC 500 product line. It helps prevent dirt from falling into the slot and causing a fault in the backplane. It also keeps dust out of unoccupied slots in the chassis. It has a voltage range of 10 to 30 VDC and can draw 1 mA off-sate current and 50 mA backplane current at 5VDC.

1746-NI16I

The Allen-Bradley 1746-NI16I is an analog input module with 16 backplane isolated current input channels. The input channels have selectable current ranges that include 0-20 milliamperes, 4-20 milliamperes, +/-20 milliamperes, and 0-1 milliamperes. The module receives data converted from a digital to analog format and stores it for retrieval by SLC 500 processors. The 1746-NI16I module’s backplane current is specified as 125mA at 5V and 75 mA at 24V.

1746-NI16V

The Allen-Bradley 1746-NI16V is an SLC 500 analog input module. This product has sixteen (16) input channels. It consumes 125 mA of backplane current at 5 VDC, as well as 75 mA of backplane current at 24 VDC. Additionally, the 1746-NI16V consumes a maximum of 2.425 watts of backplane power. The isolation voltage of this product is rated at 500 volts alternating current (AC) for one (1) second. The 1746-NI16V is equipped with a total of five (5) green LED status indicators.

1746-NI4

The Allen Bradley 1746-NI4 is a high-resolution SLC 500 Analog Input Module. The module has 4 differential analog input channels and uses a DIP switch configuration to allow selectable voltage/ current ratings for each channel. Its backplane current is 35 mA for 5 V. The module has a 16-bit resolution for fast and accurate conversion for a range of applications. The 1746-NI4 analog conversion module supports LEDs for status indication and allows rack mounting.

1746-NI8

The Allen-Bradley 1746-NI8 is an SLC 500, 8 Channel Analog Input Module with voltage and current specifications of ±10V DC and ±20 mA. The module provides fast and high accuracy analog signal conversion with a resolution of 16 bits and class 1/3 operation. The 1746-NI8 module is compatible with fixed or modular hardware and uses a single slot within the SLC 500 chassis. It requires a 1746-RT25G removable terminal block.

1746-NIO4I

Allen-Bradley 1746-NIO4V is an SLC 500 Analog Combination I/O module. The high resolution combination module is designed with 2 differential current or voltage analog inputs and 2 voltage outputs. The module’s input channels are user selectable with a current range of ±20mA and voltage range of ±10V DC. It has an output range of 0 – 20 mA. The 1746-NIO4I module occupies a single slot in the SLC 500 chassis and has backplane current ratings of 55 mA/5V DC and 115 mA/24 V DC.

1746-NIO4V

Allen-Bradley 1746-NIO4V is an SLC 500 Analog Combination I/O module. The high resolution combination module is designed with 2 differential current or voltage analog inputs and 2 voltage outputs. The module’s input channels are user selectable with current range of ±20mA and voltage range of ±10V DC. It has an output range of 0 – 20 mA. The 1746-NIO4I module occupies a single slot in the SLC 500 chassis and has backplane current ratings of 55 mA/5V DC and 115 mA/24 V DC.

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