Programmable Logic Controllers

Showing 841 - 864 of 24003 products

Beckhoff CU1128 Beckhoff

€625,95

In stock, 17 units

Infrastructure, 8-port junction, EtherCAT, 100 Mbit/s, 24 V DC, RJ45

Beckhoff EL2088 Beckhoff

€130,95

Only 10 units left

EtherCAT Terminal, 8-channel digital output, 24 V DC, 0.5 A, ground switching

Beckhoff EL7037 Beckhoff

€215,95

In stock, 15 units

Buy the Beckhoff EL7037 PLC Module - a programmable logic controller component from Beckhoff's industrial automation platform. Provides reliable process control, I/O interfacing, and communication capabilities for manufacturing and process systems. The Beckhoff EL7037 is a direct drop-in replacement for existing PLC installations.

B&R X20CP1382 B&R

€4.011,95

In stock, 18 units

Intel x86 400 MHz compatible with integrated I/O processor Ethernet, POWERLINK with poll-response chaining and onboard USB 1 slot for modular interface expansion 30 digital inputs/outputs and 2 analog inputs integrated in the device 2 GB onboard flash drive 256 MB DDR3 SDRAM Fanless No battery Backed-up real-time clock The X20 Compact controller series is characterized by 3 integrated I/O modules. The device is equipped with 30 different digital inputs/outputs and 2 analog inputs. 1 analog input can be used for Pt1000 resistance temperature measurement. The X20CP1382 is equipped with an Intel x86 400 MHz compatible processor, 256 MB RAM and 2 GB built-in flash drive. The FRAM for storing remanent variables has 32 kB available. A fanless and battery-free design ensures maintenance-free operation. The controller is equipped with Ethernet, 2x USB and an RS232 interface. In addition, POWERLINK and CAN bus are available as integrated interfaces. For additional fieldbus connections, each controller can be expanded with an interface module from the X20 standard portfolio.

B&R 5AP920-1043-01 B&R

€5.464,95

Only 8 units left

PLC Direct is not an authorized distributor. We offer a broad range of in-stock products with minimal lead time.

B&R X20IF10611 B&R

€1.247,95

In stock, 13 units

X20IF10611
INTERFACE MODULE
COMMUNICATION MODULE
1X PROFIBUS DP V0/V1 MASTER
MEMORY 8 MB SDRAM
9-PIN FEMALE DSUB CONNECTOR

B&R X20BM36 B&R

€972,95

Only 6 units left

Bus module for SafeIO modules
The internal I/O power supply is continuous.
Manual node number assignment
Independent from the electronics module
Manual and automatic addressing can be combined as desired.

The bus module is the base for all SafeIO modules. The internal I/O power supply is continuous. In addition, a unique address is defined with this bus module using a node number switch.

B&R X20IF10822 B&R

€314,95

Only 5 units left

Buy the B&R Automation X20IF10822 - a genuine B&R Automation industrial automation component engineered for reliable performance in demanding manufacturing and process control environments. The B&R Automation X20IF10822 is a direct drop-in replacement for existing installations and ships ready for integration.

Siemens 6ES7193-6BP20-0DA0 Siemens

€87,95

In stock, 11 units

Product
Article Number (Market Facing Number)	6ES71936BP200DA0 \| 6ES71936BP200DA0
Product Description	SIMATIC ET 200SP, BaseUnit BU15-P16+A10+2D, BU type A0, Push-in terminals, with 10 AUX terminals, New load group, WxH: 15 mmx141 mm
Product family	BaseUnits
Product Lifecycle (PLM)	PM300:Active Product
Additional Product Information
EAN	4025515080879
UPC	040892933604
Commodity Code	85366990
LKZ_FDB/ CatalogID	ST76
Product Group	4520
Group Code	R151
Country of origin	Germany
SCIP number	Not available
Delivery information
Net Weight (lb)	0.130 lb
Package size unit of measure	Inch
Packaging Quantity	1

Siemens 6ES7-231-0HC22-0XA0 Siemens

€308,95

Only 7 units left

The Siemens 6ES7231-0HC22-0XA0 is an analog input expansion module (EM 231) designed exclusively for SIMATIC S7-22X CPU series programmable logic controllers. This module provides four analog input channels for acquiring voltage signals in industrial automation applications. It features a 12-bit analog-to-digital converter for precise signal measurement and supports multiple voltage input ranges including 0-5V DC, 0-10V DC, ±2.5V, and ±5V, as well as 0-20mA current input. The module connects to the S7-200 controller via the backplane bus and is configured using DIP switches. With differential input type and high input impedance of 10 MΩ for voltage inputs, it ensures accurate signal acquisition for process monitoring and control in manufacturing, building automation, and industrial environments.

Item Details

Brand Name: Siemens
Manufacturer: Siemens
Item Type Name: Analog Input Module
Product Family / Series: SIMATIC S7-200
Module Designation: EM 231
Compatibility: S7-22X CPU only

Product Specifications

number_of_analog_inputs: 4
analog_outputs: 0
resolution: 12 bit
converter_type: 12-bit ADC
voltage_input_ranges: 0-5V DC, 0-10V DC, ±2.5V, ±5V
current_input_ranges: 0-20 mA
input_type: Differential
input_impedance_voltage: 10 MΩ
input_impedance_current: 250 Ω
data_word_format_bipolar: -32000 to +32000
data_word_format_unipolar: 0 to 32000
input_filter_attenuation: -3 dB at 3.1 kHz
max_input_voltage: 30 V DC
max_input_current: 32 mA
power_consumption_5V_DC: 20 mA
power_consumption_24V_DC: 60 mA
power_loss_typical: 2 W
isolation: None (field to logic)

Measurements

Weight: 183 g
Dimensions: 71.2 x 80 x 62 mm (W x H x D)

Siemens 6ES7153-4AA01-0XB0 Siemens

€1.078,95

In stock, 12 units

Product
Article Number (Market Facing Number)	6ES71534AA010XB0 \| 6ES71534AA010XB0
Product Description	* spare part * SIMATIC DP, connection ET 200M IM 153-4 PN IO for max. 12 S7-300 modules, extended functions: isochronous real time communication class 1 and 2, module exchange without PG, operation without MMC, maintenance support of new IO modules
Product family	Not available
Product Lifecycle (PLM)	PM410:Product cancellation
Additional Product Information
EAN	4025515076766
UPC	662643400984
Commodity Code	85176200
LKZ_FDB/ CatalogID	ST76
Product Group	X06T
Group Code	R151
Country of origin	Germany
SCIP number	Not available
Delivery information
Net Weight (lb)	0.580 lb
Package size unit of measure	Inch
Packaging Quantity	1

Siemens 6ES7231-0HC00-0XA0 Siemens

€528,95

Only 6 units left

Product
Article Number (Market Facing Number)	6ES72310HC000XA0
Product Description	SIMATIC S7-200, ANALOG INPUT EM 231, NON - ISOLATED, 3 AI 12 BIT UNIPOLAR, IN RANGES: DC 0-5 V/ DC 0-10 V, 0-20 MA FOR S7-21X CPU ONLY, * PRODUCT TO BE DISCONTINUED *
Product family	Not available
Product Lifecycle (PLM)	PM500:Discontinued Product or end of PLM & Support
Additional Product Information
EAN	4025515160311
UPC	Not available
Commodity Code	85389091
LKZ_FDB/ CatalogID	ST9-E5
Product Group	2283
Group Code	R111
Country of origin	Germany
SCIP number	Not available
Delivery information
Net Weight (lb)	0.527 lb
Package size unit of measure	Inch
Packaging Quantity	1

Siemens 6ES7212-1HE31-0XB0 Siemens

€325,95

Only 6 units left

Product
Article Number (Market Facing Number)	6ES72121HE310XB0 \| 6ES72121HE310XB0
Product Description	SIMATIC S7-1200, CPU 1212C, COMPACT CPU, DC/DC/RLY, ONBOARD I/O: 8 DI 24V DC; 6 DO RELAY 2A; 2 AI 0 - 10V DC, POWER SUPPLY: DC 20.4 - 28.8 V DC, PROGRAM/DATA MEMORY: 50 KB AN UPDATED VERSION IS AVAILABLE REPLACEMENT 6ES7212-1HE40-0XB0
Product family	Not available
Product Lifecycle (PLM)	PM490:Start of final year of support
Additional Product Information
EAN	6940408101357
UPC	040892997576
Commodity Code	85371091
LKZ_FDB/ CatalogID	ST9.72
Product Group	9040
Group Code	R132
Country of origin	China
SCIP number	Not available
Delivery information
Net Weight (lb)	0.798 lb
Package size unit of measure	Inch
Packaging Quantity	1

Siemens 6ES7-467-5GJ02-0AB0 Siemens

€3.849,95

Only 9 units left

The Siemens 6ES7467-5GJ02-0AB0 IM 467 is a PROFIBUS DP master interface module designed for the SIMATIC S7-400 automation system. It provides RS485 connectivity for interfacing field devices according to the PROFIBUS DP standard. The module serves as a communication gateway enabling the S7-400 controller to integrate distributed I/O, drives, and other intelligent field devices into automated control systems. This interface module is widely used in industrial automation applications across manufacturing, process control, and production environments where reliable, high-speed fieldbus communication is required. The IM 467 features diagnostic LEDs and a mode selector for operational monitoring and configuration. It is engineered for installation in S7-400 racks and supports the modular, scalable architecture characteristic of the SIMATIC S7-400 platform.

Item Details

Brand Name: Siemens
Manufacturer: Siemens AG
Item Type Name: PROFIBUS DP Master Interface Module
Product Family / Series: SIMATIC S7-400
Model: IM 467
Part Number: 6ES7467-5GJ02-0AB0

Product Specifications

interface_type: PROFIBUS DP Master
physical_interface: RS485
communication_standard: PROFIBUS DP
platform_compatibility: S7-400 automation system

Measurements

Weight: 0.8 kg

Siemens 6ES7354-1AH01-0AE0 Siemens

€1.044,95

In stock, 18 units

Product
Article Number (Market Facing Number)	6ES73541AH010AE0 \| 6ES73541AH010AE0
Product Description	SIMATIC S7-300, FM 354 SUBMODULE FOR POSITIONING WITH SERVOMOTORS, MODULE EXCHANGE W/O PG, PREQUISITE STEP7 V3.1 INCL. CONFIG. PACKAGE ON CD
Product family	Not available
Product Lifecycle (PLM)	PM410:Product cancellation
Additional Product Information
EAN	4019169390040
UPC	662643038620
Commodity Code	85389091
LKZ_FDB/ CatalogID	ST73
Product Group	9483
Group Code	R2S2
Country of origin	Germany
SCIP number	97f0d51c-8240-45c5-bf08-32cb012aade6
Delivery information
Net Weight (lb)	1.102 lb
Package size unit of measure	Not available
Packaging Quantity	1

Siemens 6ES7332-5HD01-0AB0 Siemens

€588,95

In stock, 14 units

Product
Article Number (Market Facing Number)	6ES73325HD010AB0 \| 6ES73325HD010AB0
Product Description	SIMATIC S7-300, Analog output SM 332, isolated, 4 AO, U/I; diagnostics; resolution 11/12 bits, 20-pole, removing and inserting possible with active backplane bus
Product family	SM 332 analog output modules
Product Lifecycle (PLM)	PM400:Announcement of product phase-out
Additional Product Information
EAN	4025515061298
UPC	040892562316
Commodity Code	85389091
LKZ_FDB/ CatalogID	ST73
Product Group	2288
Group Code	R151
Country of origin	Germany
SCIP number	b75818ad-51e8-4bc2-b88a-ee5fcb4be5c9
Delivery information
Net Weight (lb)	0.556 lb
Package size unit of measure	Inch
Packaging Quantity	1

Siemens 6ES5945-7UA13 Siemens

€2.020,95

Only 10 units left

Product
Article Number (Market Facing Number)	6ES59457UA13 \| 6ES59457UA13
Product Description	*Spare part* SIMATIC S5, CPU 945 for S5-115U 256 KB
Product family	Not available
Product Lifecycle (PLM)	PM500:Discontinued Product or end of PLM & Support
Additional Product Information
EAN	4025515056102
UPC	662643236569
Commodity Code	85371091
LKZ_FDB/ CatalogID	ST9-E5
Product Group	4235
Group Code	R151
Country of origin	Germany
SCIP number	Not available
Delivery information
Net Weight (lb)	1.806 lb
Package size unit of measure	Inch
Packaging Quantity	1

Siemens 6ES7545-5DA00-0AB0 Siemens

€492,95

In stock, 11 units

Product
Article Number (Market Facing Number)	6ES75455DA000AB0 \| 6ES75455DA000AB0
Product Description	SIMATIC DP, CM PROFIBUS DP for ET 200SP CPU module with PROFIBUS DP interface (9-pole D-sub socket) DP master for 125 DP slaves DP slave,
Product family	CM DP for ET 200SP CPU
Product Lifecycle (PLM)	PM300:Active Product
Additional Product Information
EAN	4047623404538
UPC	887621836245
Commodity Code	85176200
LKZ_FDB/ CatalogID	ST76
Product Group	9034
Group Code	R132
Country of origin	Germany
SCIP number	Not available
Delivery information
Net Weight (lb)	0.231 lb
Package size unit of measure	Inch
Packaging Quantity	1

Siemens 6ES7153-4BA00-0XB0 Siemens

€943,95

In stock, 13 units

Product
Article Number (Market Facing Number)	6ES71534BA000XB0 \| 6ES71534BA000XB0
Product Description	* spare part * SIMATIC DP, connection ET 200M IM 153-4 PN IO High Feature for max. 12 S7-300 modules, supports fail-safe modules, HART modules, shared device, medium redundancy protocol
Product family	Not available
Product Lifecycle (PLM)	PM410:Product cancellation
Additional Product Information
EAN	4025515078579
UPC	040892584752
Commodity Code	85176200
LKZ_FDB/ CatalogID	ST76
Product Group	X06T
Group Code	R151
Country of origin	Germany
SCIP number	Not available
Delivery information
Net Weight (lb)	0.569 lb
Package size unit of measure	Inch
Packaging Quantity	1

Siemens 6ES7315-6TH13-0AB0 Siemens

€1.082,95

Only 6 units left

Product
Article Number (Market Facing Number)	6ES73156TH130AB0 \| 6ES73156TH130AB0
Product Description	*Spare part* SIMATIC S7-300, CPU 315T-2 DP, Central processing unit for PLC and Technology tasks, 256 KB work memory, 1st interface MPI/DP 12 Mbit/s, 2nd interface DP (drive), Integr. I/O for technology, Front connector (1x 40-pole) and Micro Memory Card min. 8 MB required
Product family	Not available
Product Lifecycle (PLM)	PM490:Start of final year of support
Additional Product Information
EAN	4025515076421
UPC	662643401400
Commodity Code	85371091
LKZ_FDB/ CatalogID	ST9-E5
Product Group	4256
Group Code	R132
Country of origin	Germany
SCIP number	Not available
Delivery information
Net Weight (lb)	1.746 lb
Package size unit of measure	Inch
Packaging Quantity	1

Siemens 6ES7131-7RF00-0AB0 Siemens

€1.047,95

In stock, 14 units

Product
Article Number (Market Facing Number)	6ES71317RF000AB0 \| 6ES71317RF000AB0
Product Description	SIMATIC, electronic module, for ET200iSP, 8 DI NAMUR, Ex ib (ia Ga) IIC T4 Gb, Ex ib [ia IIIC Da] IIC T4 Gb, Ex ib [ia] I Mb
Product family	Ordering Data Overview
Product Lifecycle (PLM)	PM300:Active Product
Additional Product Information
EAN	4019169131568
UPC	662643218145
Commodity Code	85389091
LKZ_FDB/ CatalogID	ST76
Product Group	2459
Group Code	R336
Country of origin	Germany
SCIP number	Not available
Delivery information
Net Weight (lb)	0.606 lb
Package size unit of measure	Inch
Packaging Quantity	1

Siemens 6ES7288-0ED10-0AA0 Siemens

€95,95

Only 10 units left

BRAND NEW CONDITION, GUARANTEED.

Siemens 6ES7151-1AA03-0AB0 Siemens

€524,95

In stock, 11 units

Product
Article Number (Market Facing Number)	6ES71511AA030AB0 \| 6ES71511AA030AB0
Product Description	* SPARE PART* SIMATIC DP, INTERFACE MODULE IM151-1 STANDARD FOR ET200S; TRANSMISS. RATE UP TO 12MBIT/S; DATA VOLUME 128BYTE FOR EACH INPUT AND OUTPUT; MAX. OF 63 POWER, ELECTR. OR MOTOR STARTER MODULES UP TO 2M WIDTH CONNECTABLE; BUS INTERFACING VIA 9-WAY SUB-D INCL. TERMINATING MODULE
Product family	Not available
Product Lifecycle (PLM)	PM500:Discontinued Product or end of PLM & Support
Additional Product Information
EAN	4025515069713
UPC	662643204032
Commodity Code	85176200
LKZ_FDB/ CatalogID	ST9-E5
Product Group	4467
Group Code	R111
Country of origin	Germany
SCIP number	Not available
Delivery information
Net Weight (lb)	0.421 lb
Package size unit of measure	Inch
Packaging Quantity	1

Siemens 6ES7331-7KF01-0AB0 Siemens

€659,95

Only 4 units left

Product
Article Number (Market Facing Number)	6ES73317KF010AB0
Product Description	SIMATIC S7-300, ANALOG INPUT SM 331, OPTICALLY ISOLATED, U/I/THERMOCOUPLE/RESISTANCE INTERRUPT, DIAGNOSTICS; RESOLUTION 9/12/14 BITS, 8AI, REMOVE/INSERT W. BACKPLANE BUS 20 PIN
Product family	Not available
Product Lifecycle (PLM)	PM500:Discontinued Product or end of PLM & Support
Additional Product Information
EAN	4025515061205
UPC	Not available
Commodity Code	85389091
LKZ_FDB/ CatalogID	ST9-E5
Product Group	Not available
Group Code	R111
Country of origin	Not available
SCIP number	Not available
Delivery information
Net Weight (lb)	0.637 lb
Package size unit of measure	Not available
Packaging Quantity	1

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Programmable logic controllers are ruggedized industrial computers that execute control logic for machine and process automation, handling digital and analog I/O, motion coordination, and network communication in real time across manufacturing and infrastructure environments. PLC Direct supplies programmable logic controllers as an independent supplier, carrying surplus sealed, refurbished, and used hardware for maintenance and replacement in installed automation systems.

Where Are Programmable Logic Controllers Used in Industrial Environments?

Programmable logic controllers are used wherever automated machine or process control requires deterministic, scan-based logic execution across digital and analog field signals. These controllers are installed across virtually every sector of industrial operations, from individual machine control panels to plant-wide distributed automation architectures.

Facilities and operations that depend on programmable logic controllers include:

Discrete manufacturing plants running assembly line automation, machine sequencing, and multi-axis motion control.
Food and beverage processing facilities managing conveyor systems, batch recipes, and filling line control.
Water and wastewater treatment plants controlling pump stations, dosing systems, and distributed process equipment.
Automotive and metal fabrication operations requiring high-speed discrete I/O and coordinated production line control.
Packaging, material handling, and logistics operations where flexible, modular control architectures support high-mix production environments.

Maintenance engineers and procurement teams sourcing replacement programmable logic controllers depend on the availability of both current-generation and legacy hardware to keep installed systems running without redesigning existing control architectures.

Which Brands of Programmable Logic Controllers Does PLC Direct Stock?

PLC Direct stocks programmable logic controllers across the major control platform brands deployed in installed automation systems worldwide.

Siemens SIMATIC S7 series: S7-300 and S7-400 modular controllers confirmed in stock, covering mid-range and high-end machine and process control applications across manufacturing and process industries.
Schneider Electric Modicon M340 and M580: Mid-range and high-end PAC platforms for machine and process control, with Modicon Quantum 140CPU series also stocked for larger installed process automation environments.
Mitsubishi Electric MELSEC iQ-R, Q Series, and FX5: Controller hardware spanning high-performance iQ-R CPUs, modular Q Series processors, and compact FX5 units for machine control applications across discrete manufacturing.
Omron Sysmac NX Series: NX1P2 CPU modules and associated I/O for Omron's machine automation platform, suited to packaging, assembly, and process control installations using EtherCAT and EtherNet/IP communication.

PLC Direct carries programmable logic controllers as surplus sealed, refurbished, and used hardware, giving maintenance teams and procurement managers options across condition grades and budget requirements.

What Should You Know Before Ordering Programmable Logic Controllers?

Hardware condition options: PLC Direct supplies programmable logic controllers in surplus sealed, refurbished, and used condition. Surplus sealed units are factory-sealed stock that has not been previously installed; refurbished controllers have been inspected and tested to confirm operational functionality; used hardware is sourced from decommissioned systems and suits facilities managing lifecycle replacements under budget constraints.

Compatibility and part identification: Programmable logic controllers are platform-specific, and CPU modules, I/O expansion, power supplies, and communication modules must be matched to the correct rack, backplane, and firmware environment for the installed system. Confirm the CPU part number, series designation, and any firmware or version requirements from existing system documentation before ordering. For legacy platforms such as the SIMATIC S7-300 and S7-400 or Modicon Quantum, verify rack slot and power supply compatibility as part of the identification process.

Warranty: All programmable logic controller hardware purchased from PLC Direct carries a standard 1-year PLC Direct warranty covering defects and functionality, applicable to surplus sealed, refurbished, and used products.

PLC Direct supplies programmable logic controller hardware for replacement and maintenance purposes and does not provide system design, programming, or integration services.

Frequently Asked Questions

A programmable logic controller is an industrial computer that executes control logic in a continuous scan cycle, reading input states from field devices, processing logic, and updating output states to control actuators, drives, and other equipment. Unlike general-purpose computers, PLCs are designed for deterministic real-time execution, reliable operation under industrial environmental conditions, and direct interface with field-level electrical signals.

A programmable automation controller (PAC) extends the PLC concept with a more open architecture, higher processing power, and support for multiple programming languages and communication protocols within a single controller platform. Schneider Electric's Modicon M580 and Siemens SIMATIC S7-400, for example, are often described as PAC-class hardware, while compact controllers such as the Modicon M221 and MELSEC FX5 series remain firmly in the traditional PLC category.

The most reliable approach is to identify the exact CPU part number from the installed unit's label or system documentation, then search for it in surplus or refurbished condition. Legacy platforms such as the Siemens SIMATIC S7-300, Modicon Quantum, and Mitsubishi MELSEC Q Series remain widely used in installed systems and are regularly available through independent suppliers even after manufacturer discontinuation.

Beyond matching the part number, confirm that the replacement unit's firmware version is compatible with the existing program and I/O configuration, as some PLC generations require a minimum firmware revision to support installed application software. For modular systems, also verify that the CPU's rack position, power draw, and backplane interface match the installed system's hardware configuration.

Surplus sealed programmable logic controllers are factory-sealed units that have never been installed or operated, making them functionally equivalent to new stock from a hardware standpoint. The primary consideration for critical applications is verifying that the firmware version and hardware revision are compatible with the installed system before deployment.