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Fieldbus, decentr. periphery - digital I/O module

Fieldbus and decentralized periphery digital I/O modules are the backbone of modern distributed control architectures in industrial automation. These modules serve as the physical interface between field devices—such as sensors, actuators, and pushbuttons—and the higher-level control system via industrial communication protocols like PROFIBUS, P...

Fieldbus and decentralized periphery digital I/O modules are the backbone of modern distributed control architectures in industrial automation. These modules serve as the physical interface between field devices—such as sensors, actuators, and pushbuttons—and the higher-level control system via industrial communication protocols like PROFIBUS, PROFINET, EtherCAT, DeviceNet, CANopen, or Modbus TCP. Typically available in 8, 16, or 32-channel configurations, they handle discrete digital signals (24 VDC, 48 VDC, or 110/230 VAC) with electrical isolation per channel group or individually. Key technical specs include input/output voltage ranges, nominal current per channel (usually 0.5 A to 2 A), protection class IP20 for cabinet mounting or IP65/IP67 for on-machine installation, and diagnostic functions like short-circuit detection and wire-break monitoring. They are often referred to as remote I/O modules, distributed I/O blocks, or fieldbus couplers with integrated I/O.

These modules are deployed in a wide range of industrial sectors including automotive manufacturing lines, packaging machinery, material handling systems, water and wastewater treatment plants, food and beverage processing, and pharmaceutical production. They are installed in control cabinets (IP20 versions) or directly on machines and conveyors (IP65/IP67 versions) to reduce wiring costs and simplify troubleshooting. Typical environments include assembly stations, robotic cells, conveyor systems, and process skids where decentralized signal acquisition and control are required.

Key subcategories within this category include digital input modules (e.g., 8DI, 16DI, 32DI), digital output modules (e.g., 8DO, 16DO, 32DO), and combined digital I/O modules (e.g., 8DI/8DO, 16DI/16DO). Common article codes follow patterns like "DI8x24VDC" or "DO16x0.5A", with manufacturers such as Siemens (ET 200 series), Beckhoff (BK series), WAGO (750 series), and Phoenix Contact (Axioline F series) offering extensive portfolios. For example, a typical 16-channel digital input module might be coded as "DI16x24VDC" with a specific manufacturer prefix.

Partnering with Electric Automation Network ensures access to real-time pricing, global express shipping, and dedicated technical support from experienced automation engineers. We provide detailed datasheets, wiring diagrams, and configuration files for every module, helping you select the right fieldbus protocol and I/O count for your application. Our multilingual portal simplifies procurement across borders, while our engineering team assists with system integration and troubleshooting.

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Manufacturer Code Reference Catalog Number Description Delivery Price

2688022

AXL F DI16/4 2F

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I/O module

AxiolineF, Digital input module, Digital inputs: 16, 24 VDC, connection technology: 4 conductors, transmission speed on the local bus:100 MBit/s, protection index: IP20, including bus socket module and AxiolineF connectors

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2688035

AXL F DI32/1 1F

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I/O module

AxiolineF, Digital input module, Digital inputs: 32, 24 VDC, connection technology: 1 conductor, transmission speed on the local bus:100 MBit/s, protection index: IP20, including bus socket module and AxiolineF connectors

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2688048

AXL F DO16/3 2F

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I/O module

AxiolineF, Digital output module, Digital outputs:16, 24 VDC, 500 mA, connection technology:3 conductors, transmission speed on the local bus:100 MBit/s, protection index: IP20, including bus socket module and AxiolineF connectors

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2688051

AXL F DO32/1 1F

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I/O module

AxiolineF, Digital output module, Digital outputs:32, 24 VDC, 500 mA, connection technology:1 driver, transmission speed on the local bus:100 MBit/s, protection index: IP20, including bus socket module and AxiolineF connectors

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2688310

AXL F DI16/1 1H

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I/O module

AxiolineF, Digital input module, Digital inputs: 16, 24 VDC, connection technology: 1 driver, transmission speed on the local bus:100 MBit/s, protection index: IP20, including bus socket module and AxiolineF connectors

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2688349

AXL F DO16/1 1H

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I/O module

AxiolineF, Digital output module, Digital outputs:16, 24 VDC, 500 mA, connection technology:1 driver, transmission speed on the local bus:100 MBit/s, protection index: IP20, including bus socket module and AxiolineF connectors

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2688381

AXL F DO8/2 2A 1H

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I/O module

AxiolineF, Digital output module, Digital outputs:8, 24 VDC, 2 A, connection technology:2 conductors, transmission speed on the local bus:100 MBit/s, protection index: IP20, including bus socket module and AxiolineF connectors

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2692306

IB IL 24 DI 4-2MBD-PAC

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Inline terminal

Inline, Digital input module, Digital inputs: 4, 24 VDC, connection technology: 3 conductors, transmission speed on the local bus: 2 MBit/s, protection index: IP20, including Inline connector and marking surface

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2692885

IB IL 24 DI 32/HD-2MBD-PAC

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Inline terminal

Inline, Digital input module, Digital inputs: 32, 24 VDC, connection technology: 1 conductor, transmission speed on the local bus: 2 MBit/s, protection index: IP20, including inline connectors and marking fields

 		3 View Availability View Price

2692898

IB IL 24 DO 32/HD-2MBD-PAC

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Inline terminal

Inline, Digital output module, Digital outputs:32, 24 VDC, 500 mA, connection technology:1 conductor, transmission speed on the local bus:2 MBit/s, protection index: IP20, including Inline connectors and marking fields

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2700172

IB IL 24 DO8/HD-PAC

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Inline terminal

Inline, Digital output module, Digital outputs:8, 24 VDC, connection technology:1 conductor, transmission speed on the local bus:500 kBit/s, protection index: IP20, including Inline connector and marking surface

Inline, Digital output terminal, Digital outputs: 8, 24 V DC, connection technology: 1-conductor, transmission speed in the local bus: 500 kbps, degree of protection: IP20, including Inline connector and labeling field

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2700173

IB IL 24 DI8/HD-PAC

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Inline terminal

Inline, Digital input module, Digital inputs: 8, 24 VDC, connection technology: 1 conductor, transmission speed on the local bus:500 kBit/s, protection index: IP20, including Inline connector and marking surface

Inline, Digital input terminal, Digital inputs: 8, 24 V DC, connection technology: 1-conductor, transmission speed in the local bus: 500 kbps, degree of protection: IP20, including Inline connector and labeling field

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2700606

IB IL 24 LPSDO 8 V2-PAC

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Safety module

Safety-oriented digital output module, IP20 degree of protection, for the SafetyBridge system. The module has 4 secure digital outputs with two-channel occupancy or 8 secure digital outputs with single-channel occupancy

Safety-related digital output module, IP20 protection, for the SafetyBridge system. The module has four safe digital outputs with two-channel occupancy or 8 safe digital outputs with single-channel occupancy

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DRT20056R

DRT2-ID32B

DRT2ID32B

DeviceNet digital input board, 32 x inputs, 24 VDC, NPN, MIL connector (not included)

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1052427

AXL F DI16 NAM XC 1F

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Axioline F, Digital input module, Digital inputs: 16 (NAMUR), 8 V DC, connection technology: 2 conductors, Extreme Condition variant, transmission speed on local bus: 100 MBit/s, protection rating: IP20, including bus socket module and Axioline F connectors

Axioline F XC, Digital Input Module, Digital Inputs: 16 (NAMUR), 8 V DC, Connection Technique: 2 Conductors, Extreme Conditions Variant, Local Bus Transmission Rate: 100 MBit/s, Protection Index: IP20, Including Bus Socket Module and Axioline F Connectors

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1088127

AXL SE DI16/1

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Axioline Smart Elements, Digital input module, Digital inputs: 16, 24 V DC, connection technology: 1 driver, protection index: IP20

Axioline Smart Elements, Digital input module, Digital inputs: 16, 24 V DC, connection technique: 1 conductor, protection index: IP20

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1088129

AXL SE DO16/1

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Axioline Smart Elements, Digital output module, Digital outputs: 16, 24 V DC, 500 mA, connection technology: 1 driver, protection index: IP20

Axioline Smart Elements, Digital Output Module, Digital Outputs: 16, 24 V DC, 500 mA, Connection Technique: 1 Conductor, Protection Index: IP20

 		3 View Availability View Price

1079241

AXL SE PSDI8/3

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Axioline Smart Elements, Digital input module, Functional safety, PROFIsafe, only for connection to a control system from Phoenix Contact and Siemens, Safe digital inputs: 4 (2-channel assignment), 8 (1-channel assignment), 24 V DC, connection technology: 3 conductors, protection rating: IP20

Axioline Smart Elements, Digital Input Module, Secure Digital Inputs: 8 (1 Channel Assignment), 4 (2 Channel Assignment), 24 V DC, Connection Technique: 3 Conductors, Protection Index: IP20

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1079231

AXL SE PSDO4/2 2A

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Axioline Smart Elements, Digital output module, Functional safety, PROFIsafe, only for connection to a control system from Phoenix Contact and Siemens, Safe digital outputs: 2 (2-channel assignment), 4 (1-channel assignment), 24 V DC, 2 A, connection technology: 2 conductors, protection rating: IP20

Axioline Smart Elements, Digital Output Module, Secure Digital Outputs: 4 (1 Channel Assignment), 2 (2 Channel Assignment), 24 V DC, 2 A, Connection Technique: 2 Conductors, Protection Index: IP20

 		3 View Availability View Price

1052423

AXL F EX IS DI16 NAM XC 1F

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Axioline F EX_XC, Digital Input Module, Digital Inputs: 16 (NAMUR), 8 V DC, Connection Technology: 2 Conductors, Extreme Conditions Variant, Intrinsically Safe, Local Bus Transmission Rate: 100 MBit/s, Protection Index: IP20, Including Bus Socket Module and Axioline F Connectors

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1052416

AXL P DI16 NAM 1F

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Axioline P, Digital Input Module, Digital Inputs: 16 (NAMUR), 8 V DC, Connection Technology: 2 Conductors, Local Bus Transmission Speed: 100 MBit/s, Protection Rating: IP20

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1052417

AXL P EX IS DI16 NAM 1F

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Axioline P EX, Digital Input Module, Digital Inputs: 16 (NAMUR), 8 V DC, Connection Technology: 2 Conductors, Intrinsically Safe, Local Bus Transmission Rate: 100 MBit/s, Protection Rating: IP20

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1105559

AXL SE DI16/1 NPN

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Axioline Smart Elements, Digital input module, Digital inputs: 16 (NPN), 24 V DC, connection technology: 1 conductor, protection index: IP20

Axioline Smart Elements, Digital Input Module, Digital Inputs: 16 (NPN), 24 V DC, Connection Technology: 1 Conductor, Protection Index: IP20

 		3 View Availability View Price

1105560

AXL SE DO16/1 NPN

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Axioline Smart Elements, Digital Output Module, Digital Outputs: 16 (NPN), 24 V DC, 500 mA, Connection Technology: 1 Driver, Protection Index: IP20

Axioline Smart Elements, Digital Output Module, Digital Outputs: 16 (NPN), 24 V DC, Connection Technology: 1 Conductor, Protection Index: IP20

 		3 View Availability View Price

1181790

AXL SE DO4/2 2A EF

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Axioline Smart Elements, Digital output module, Digital outputs: 4, 24 V DC, 2 A, connection technology: 2 conductors, protection index: IP20

Axioline Smart Elements, Digital Output Module, Digital Outputs: 4, 24 V DC, 2 A, Connection Technology: 2 Conductors, Protection Index: IP20

 		3 View Availability View Price

1105562

AXL SE DOR2 W 230

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Axioline Smart Elements, Relay module, Relay outputs: 2 (potential-free), Switch, 220 V DC, 230 V AC, protection index: IP20

Axioline Smart Elements, Relay Module, Relay Outputs: 2 (potential free), Inverter, 220 V DC, 230 V AC, Protection index: IP20

 		3 View Availability View Price

1182185

AXL SE INC1 ASYM

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Axioline Smart Elements, Position Registration Module, Incremental value transmitter input: 1, asymmetric transmitters, Digital inputs: 2, 24 V DC, protection index: IP20

Axioline Smart Elements, Position Recording Module, Incremental Value Transmitter Input: 1, Asymmetric Transmitters, Digital Inputs: 2, 24 V DC, Protection Index: IP20

 		3 View Availability View Price

1190012

AXL SE SSDI8/3

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Axioline Smart Elements, Digital input module, Functional safety, SafetyBridge technology, Safe digital inputs: 4 (2-channel assignment), 8 (1-channel assignment), 24 V DC, connection technology: 3 drivers, protection index: IP20

Axioline Smart Elements, Digital Input Module, SafetyBridge Technology, Secure Digital Inputs: 8 (1 Channel Allocation), 4 (2 Channel Allocation), 24 V DC, Connection Technology: 3 Conductors, Protection Index: IP20

 		3 View Availability View Price

1190017

AXL SE SSDO4/2 2A

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Axioline Smart Elements, Digital Output Module, Functional Safety, SafetyBridge Technology, Safe Digital Outputs: 2 (2-channel assignment), 4 (1-channel assignment), 24 V DC, 2 A, connection technology: 2 drivers, protection rating: IP20

Axioline Smart Elements, Digital Output Module, SafetyBridge Technology, Safe Digital Outputs: 4 (1 Channel Assignment), 2 (2 Channel Assignment), 24 V DC, 2 A, Connection Technology: 2 Conductors, Protection Index: IP20

 		3 View Availability View Price

1213483

AXL P DI16/2 1F

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Axioline P, Digital input module, Digital inputs: 16, 24 V DC, connection technology: 2 conductors, transmission speed on the local bus: 100 MBit/s, protection index: IP20, Included bus socket module and Axioline P male connectors

Axioline P, Digital input module, Digital inputs: 16, 24 V DC, connection technology: 2 conductors, 24 V DC input, protection rating: IP20

 		3 View Availability View Price

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