Digital I/O Controllers

Results: 32
Select Image Part # Mfr. Description Datasheet Availability Pricing (EUR) Filter the results in the table by unit price based on your quantity. Qty. RoHS ECAD Model Type Number of Outputs Analogue / Digital Output Type Mounting Style Size Number of Inputs Display Type Series Features
ControlByWeb I/O Controllers WebRelay-Quad remote relay controller with 4 web-controlled relays, browser-based logic builder, open API, Modbus TCP/IP and MQTT support. (Wi-Fi model). 1In Stock
2Expected 8/19/2026
Min.: 1
Mult.: 1

4 Output Digital Relay DIN Rail Mount 4 Input 400 Series
ControlByWeb I/O Controllers WebSwitch Plus remote power switch with 2 relay-controlled power outlets, 2 digital inputs, up to 16 temperature sensors, automatic reboot, logging, and browser-based control. (with temperature sensor; North American model).
1In Stock
2Expected 8/19/2026
Min.: 1
Mult.: 1

2 Output Digital Relay Panel Mount 2 Input WebSwitch
ControlByWeb I/O Controllers WebSwitch Plus remote power switch with 2 relay-controlled power outlets, 2 digital inputs, up to 16 temperature sensors, automatic reboot, logging, and browser-based control. (with temperature sensor; international model).
3In Stock
Min.: 1
Mult.: 1

2 Output Digital Relay Panel Mount 2 Input WebSwitch
ControlByWeb I/O Controllers X-401 industrial dual relay and input module with browser-based setup, embedded logic builder, Modbus/MQTT/SNMP/REST support, 2 SPDT relays, and 2 optically isolated digital inputs. (Wi-Fi model). 3In Stock
Min.: 1
Mult.: 1

2 Output Digital Relay DIN Rail Mount 2 Input 400 Series
ControlByWeb I/O Controllers X-401 industrial dual relay and input module with browser-based setup, embedded logic builder, Modbus/MQTT/SNMP/REST support, 2 SPDT relays, and 2 optically isolated digital inputs. (PoE/Ethernet model). 7In Stock
Min.: 1
Mult.: 1

2 Output Digital Relay DIN Rail Mount 2 Input 400 Series
Schneider Electric I/O Controllers Zelio SR3 26 I-O 24VDC transistor out
4In Stock
Min.: 1
Mult.: 1
Modular Smart Relay 26 Output Digital Relay DIN Rail Mount 26 Input Clock SR3
Omron Automation and Safety I/O Controllers 16 DC In, 16 NPN Out MIL Cntr
3In Stock
Min.: 1
Mult.: 1

Digital Mixed I/O Unit 16 Output Digital NPN Panel Mount 30 mm x 100 mm x 71 mm 16 Input None NX
ADLINK Technology ECAT-TRG4
ADLINK Technology I/O Controllers ECAT-TRG4 4ch EtherCAT High Speed Triger Model 1In Stock
Min.: 1
Mult.: 1
4 Output Digital 165.3 mm x 74.9 mm x 52.7 mm 4 Input
Omron Automation and Safety I/O Controllers NX DC input M3 Screw term 30mm
7In Stock
Min.: 1
Mult.: 1

DC Input Unit Digital Panel Mount 104.5 mm x 95 mm x 30 mm 16 Input None
Schneider Electric I/O Controllers Zelio SR3 10I-O 100- 240VAC
4In Stock
Min.: 1
Mult.: 1
Compact Smart Relay 4 Output Digital Relay Panel Mount 6 Input LCD Backlight SR3
Omron Automation and Safety I/O Controllers 1CH Pulse Output NPN
1In Stock
Min.: 1
Mult.: 1

Pulse Output Unit 3 Output Digital NPN Open Collector Panel Mount 12 mm x 100 mm x 71 mm 2 Input None NX
ControlByWeb I/O Controllers X-401 industrial dual relay and input module with browser-based setup, embedded logic builder, Modbus/MQTT/SNMP/REST support, 2 SPDT relays, and 2 optically isolated digital inputs. (cellular/Wi-Fi model; with a 12-month, 10 MB/mo cellular data plan 5In Stock
Min.: 1
Mult.: 1

2 Output Digital Relay DIN Rail Mount 2 Input 400 Series
ControlByWeb I/O Controllers WebRelay single relay and input module with browser-based interface, open REST API, 1 relay, 1 digital input, data logging, and 400-Series firmware capabilities. (Wi-Fi model). 10In Stock
Min.: 1
Mult.: 1

1 Output Digital Relay DIN Rail Mount 1 Input 400 Series
ControlByWeb I/O Controllers WebRelay single relay and input module with browser-based interface, open REST API, 1 relay, 1 digital input, data logging, and 400-Series firmware capabilities. (cellular/Wi-Fi model; with a 12-month, 10 MB/mo cellular data plan included). 5In Stock
Min.: 1
Mult.: 1

1 Output Digital Relay DIN Rail Mount 1 Input 400 Series
ControlByWeb I/O Controllers WebRelay-Quad remote relay controller with 4 web-controlled relays, browser-based logic builder, open API, Modbus TCP/IP and MQTT support. (cellular/Wi-Fi model; with a 12-month, 10 MB/mo cellular data plan included). 5In Stock
Min.: 1
Mult.: 1

4 Output Digital Relay DIN Rail Mount 4 Input 400 Series
ControlByWeb I/O Controllers X-401 industrial dual relay and input module with browser-based setup, embedded logic builder, Modbus/MQTT/SNMP/REST support, 2 SPDT relays, and 2 optically isolated digital inputs. (standard Ethernet/DC-powered model). 15In Stock
Min.: 1
Mult.: 1

2 Output Digital Relay DIN Rail Mount 2 Input 400 Series
Schneider Electric I/O Controllers Zelio SR3 10 I-O 24VDC, relay out
8In Stock
Min.: 1
Mult.: 1
Modular Smart Relay 10 Output Digital Relay DIN Rail Mount 10 Input Clock SR3
Brainboxes I/O Controllers Neuron Industrial Edge Controller 8 x I/O & Serial Port 1In Stock
3Expected 9/3/2026
Min.: 1
Mult.: 1

8 Output Digital Open Drain DIN Rail Mount 120 mm x 99 mm x 45 mm 8 Input BB
Schneider Electric I/O Controllers Zelio SR3 10 I-O 24VDC transistor out
1In Stock
Min.: 1
Mult.: 1
Modular Smart Relay 10 Output Digital Relay DIN Rail Mount 10 Input Clock SR3
Schneider Electric I/O Controllers ZELIO SR3 26 I-O 24VAC
3In Stock
Min.: 1
Mult.: 1
Modular Smart Relay 24 Output Digital Relay DIN Rail Mount 24 Input Clock SR3
ControlByWeb I/O Controllers WebRelay-10 Plus industrial remote relay controller with 10 independent Form-C relays, 2 digital inputs, up to 16 temperature sensors, event scheduling, logging, and browser-based control. (standard Ethernet/DC-powered model).
5In Stock
2Expected 8/13/2026
Min.: 1
Mult.: 1

10 Output Digital Relay DIN Rail Mount 232 mm × 126 mm × 62 mm 2 Input WebRelay Series
Crouzet I/O Controllers M3 NB12R 8 4 24VDC Non-Stocked Lead-Time 21 Weeks
Min.: 1
Mult.: 1

4 Output Digital Relay DIN Rail Mount 107.6 mm x 71.2 mm x 45.5 mm 8 None M3 Smart
Crouzet I/O Controllers M3 NB12R 8 4 12VDC Non-Stocked Lead-Time 21 Weeks
Min.: 1
Mult.: 1

4 Output Digital Relay DIN Rail Mount 107.6 mm x 71.2 mm x 45.5 mm 8 None M3 Smart
ADLINK Technology ADI-SIOG-FPGA 12V-2MB
ADLINK Technology I/O Controllers ADi-SIOG-FPGA/12V-2MB- 12V PWR_IN-SA metal cover- Cyclone IV FPGA EP4CGX30CF23C8N- PIC18F46J11 Logging Processor- 8MB SRAM- 32x DIO Non-Stocked
Min.: 1
Mult.: 1
FPGA Controller 32 Output Digital Digital 190 mm x 170 mm 32 Input
ADLINK Technology ADI-SIOG-FPGA 12V-4MB
ADLINK Technology I/O Controllers ADi-SIOG-FPGA/12V-4MB- 12V PWR_IN-SA metal cover- Cyclone IV FPGA EP4CGX30CF23C8N- PIC18F46J11 Logging Processor- 4MB SRAM- 32x DIO- 8x HW Meter- 4x COM Port Non-Stocked
Min.: 1
Mult.: 1
FPGA Controller 32 Output Digital Digital 190 mm x 170 mm 32 Input