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I/O Modules

I/O Modules for Industrial Applications | MRO Electric

I/O modules serve as the interface between sensors, actuators, and control systems, allowing accurate signal transmission and system monitoring. They support a variety of digital and analog inputs and outputs, ensuring reliable communication for automated machinery, conveyor systems, robotics, and process controls. Engineered for industrial environments, I/O modules deliver durability, signal integrity, and compatibility with a wide range of control devices, making them crucial for manufacturing and process automation.

Featured I/O Module Products

UDBV3 | Control Techniques I/O Modules

A02B-0259-C220 | FANUC I/O Modules

01-1000-241 | Schneider Electric I/O Modules

1790L811A | Siemens I/O Modules

Features and Benefits of I/O Modules

I/O modules are designed for reliability, precision, and ease of integration. MRO Electric provides rapid delivery, professional repair, and technical support for all module types. Key benefits include:

  • Accurate signal processing for critical automation tasks
  • Reliable operation under harsh industrial conditions
  • Compatibility with standard industrial control systems
  • Extended service life with minimal maintenance
  • Expert repair and technical support

Suggested brands: Allen-Bradley, Siemens, Omron, Schneider Electric

I/O Module Applications

I/O modules are used across multiple industries and applications:

  • Manufacturing automation – monitoring and controlling assembly lines and machinery
  • Packaging – interfacing with conveyor belts, labeling, and filling systems
  • Robotics – precise control of robotic arms and end-effectors
  • Process automation – integration with chemical, food, and pharmaceutical plant controls

How to Select the Right I/O Module

Consider the following when selecting an I/O module:

  • Signal type – digital, analog, or mixed
  • Number of channels and input/output voltage/current requirements
  • Environmental durability – temperature, vibration, and IP rating
  • Compatibility with PLCs, HMIs, and control networks
  • Communication protocols – Modbus, ProfiNet, Ethernet/IP, or other standards

Why Choose MRO Electric for Your I/O Module Needs

MRO Electric offers a large inventory of I/O modules, fast shipping, expert repair services, and warranty-backed parts. Our solutions ensure reliable automation, signal accuracy, and minimal downtime. Contact MRO Electric today for quotes, product availability, or technical guidance.

Latest I/O Modules

6ES7231-0HC22-0XA0

Siemens I/O Modules

ANALOG INPUT MODULE 4 POINT, ANALOG, 0-10 VDC, 12 BIT CONVERTER

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6ES7235-0KD22-0XA0

Siemens I/O Modules

SIMATIC S7-200 EM 235 ANALOG I/O MODULE, ANALOG CURRENT/VOLTAGE INPUTS, ONLY FOR S7-22X CPU, 21/28 VDC, 12 BIT CONVERTER

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6ES7321-1BH02-0AA0

Siemens I/O Modules

SIMATIC S7-300 ISOLATED, 16 DIGITAL INPUTS, 24 VDC, 1 X 20 POLE

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6ES7321-1BH50-0AA0

Siemens I/O Modules

SIMATIC S7-300 16POINT INPUT MODULE, DIGITAL, ISOLATED, 24VDC, 20PIN

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6ES7321-1BL00-0AA0

Siemens I/O Modules

SIMATIC S7 32 POINT, DIGITAL, ISOLATED, 24 VDC, 1 X 40 POLE

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6ES7322-1BF01-0AA0

Siemens I/O Modules

SIMATIC S7 ISOLATED, 8 DO, 24 VDC, 2 AMP, 1X 20-POLE

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6ES7322-1BH01-0AA0

Siemens I/O Modules

SIMATIC S7-300 OUTPUT MODULE, 16 POINT, DIGITAL, ISOLATED, 0.5 AMP, 24 VDC, 1 X 20 POLE, TOTAL CURRENT 4 AMP / GROUP, 8 AMP / MODULE

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6ES7322-1BL00-0AA0

Siemens I/O Modules

SIMATIC S7-300 DIGITAL OUTPUT MODULE

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6ES7322-1FL00-0AA0

Siemens I/O Modules

S7-300 SERIES PLC EXPANSION MODULE

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6ES7322-1HH00-0AA0

Siemens I/O Modules

OUTPUT MODULE, 16 POINT RELAY, 120 VAC, 24 VDC

contact us or call for stock

6ES7322-1HH01-0AA0

Siemens I/O Modules

SIMATIC S7-300, DIGITAL OUTPUT SM 322, ISOLATED 16 DO, RELAY CONTACTS, 1X 20-POLE

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6ES7322-5HF00-0AB0

Siemens I/O Modules

SIMATIC S7 DIGITAL OUTPUT SM 322, ISOLATED, 8 DO (RELAY), 1X 40-POLE, 24 V DC

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6ES7323-1BH01-0AA0

Siemens I/O Modules

SIMATIC S7-300 DIGITAL I/O MODULE

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6ES7323-1BL00-0AA0

Siemens I/O Modules

SIMATIC S7-300 ISOLATE, 16 INPUT, 16 OUTPUT, 24 VD, 0.5 , TOTAL CURRENT 4 , 1 X 40 POLE

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6ES7326-1BK02-0AB0

Siemens I/O Modules

SIMATIC S7 DIGITAL INPUT SM 326, F-DI 24X24 V DC, FAIL-SAFE DIGITAL INPUT FOR SIMATIC S7 F-SYSTEMS WITH DIAGNOSTIC ALARM, UP TO CATEGORY 4 (EN 954-1)...

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6ES7326-2BF41-0AB0

Siemens I/O Modules

S7 SERIES FAIL-SAFE DIGITAL OUTPUT SWITCH 24 VDC, 75 AMP, 12 WATT, 8 X DIGITAL OUTPUTS, SHORT CIRCUIT PROTECTION, 2-30 HZ SWITCHING FREQUENCY

in stock

6ES7331-7KF02-0AB0

Siemens I/O Modules

SIMATIC S7-300 24 V, 8 ANALOG INPUTS, 9/12/14 BITS RESOLUTION

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6ES7331-7PF01-0AB0

Siemens I/O Modules

SIMATIC S7-300 ANALOG INPUT MODULE

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6ES7331-7PF11-0AB0

Siemens I/O Modules

EXPANSION MODULE, FOR USE WITH S7-300 SERIES

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6ES7332-5HD01-0AB0

Siemens I/O Modules

SIMATIC S7 ANALOG OUTPUT MODULE, SM 332, 4 OUTPUT CHANNELS, 11/12 BITS RESOLUTION, 20 PIN

in stock