What is an I/O Controller?
An I/O controller connects input and output devices to digital systems and ensure smooth and efficient operation. I/O controls provide real-time communication by managing the transmission of data to the digital system and the control actions from the actuators, valves, or motors. Real-time communication In today’s world of machine automation, I/O controllers are crucial components for reliable data exchange between field devices/machines and digital control systems such as industrial PCs, programmable logic controllers (PLCs), or distributed control systems (DCS).
Who is Axiomatic?
Axiomatic is a well-established manufacturer of high-performance controllers and power management solutions for machines and vehicles employed in harsh operating conditions. They have been designing compact and reliable control products since 1991. A wide range of design solutions and off-the-shelf controls are offered to boost productivity and yield in rugged machines. Axiomatic I/O controllers meet the performance and environmental requirements of oil and gas, mining, and construction equipment, stationary and mobile power generator sets, and on-highway vehicles.
Why Choose Axiomatic?
Axiomatic has been solving complex electronic control challenges for industries worldwide since 1991. Our products are used in a wide variety of industries that require rugged, high-performance automation and power conversion components. New control designs from Axiomatic incorporate the latest in component technology and software programming. Where products are not quite right for a new machine, Axiomatic has the capability to efficiently manage and execute complex development projects involving hardware, software, and system issues on a tight timeline. Axiomatic electronic controls are rigorously tested for functionality, EMC compliance, vibration, and environmental performance for reliable operation in the harsh environments experienced by construction, mining, and on-highway machines.
Top 5 I/O Controls
Here is a list of the top 5 I/O Controls by Axiomatic Technologies in 2026.
0-5VDC to 4-20mA Signal Converter, +5V Reference
AX030220 is an analog signal converter with a 0 to 5 VDC input, a 4 to 20 mA output, and a voltage reference of +5 V (10 mA). The signal converter operates at 12 or 24 VDC nominal (8 to 36 VDC) from a battery or other power source. This I/O converter was designed as a compact, IP67-rated device with two M12 connectors for the harsh applications of agricultural equipment, marine engine applications, and off-highway machines. For more details or to request a quote, please visit the AX030220 webpage!
4 Universal Signal Inputs Controller, SAE J1939
AX030440 is an SAE J1939 I/O controller featuring 4 inputs selectable as voltage, current, resistive, frequency, PWM, and digital type signals. The controller operates with 12 or 24 VDC nominal (8 to 36 VDC) power input and is designed for use in machine automation. A +5V or +8V reference voltage output can be used to power external sensors and equipment. The device is configurable using the Axiomatic Electronic Assistant, AX070506K. Supported baud rates include 10, 20, 50, 100, 125, 250, 500, 667, 800, and 1000 Mbit/s with auto-baud-rate detection. The unit is designed with a rugged, compact, IP67-rated enclosure and a TE Deutsch equivalent connector for power generator set applications and industrial environments. For more details or to request a quote, please visit the AX030440 webpage!
10 Universal Signal Inputs Controllers, +5V Reference
AX030120A and AX030121A are Axiomatic’s newest 10 Signal Inputs CAN Controllers, now with a +5V (100 mA) reference voltage output regulated at 2%. Accepted input types include voltage, current, frequency, PWM, counter, and digital type signals with the controllers operating at 12, 24, or 48 VDC nominal (8 to 60 VDC). The signal converters come with pre-programmed logic and are user configurable. AX030120A communicates with SAE J1939 CAN buses, features auto-baud-rate detection, and is configurable using the Axiomatic Electronic Assistant, AX070506K. AX030121A communicates with CANopen® CAN buses and is configurable using the provided EDS file with standard CANopen® tools. Both I/O controllers are designed for construction equipment, heavy-duty industrial machine control, and power generator set applications due to the rugged, IP67-rated enclosure and TE Deutsch connectors. For more details or to request a quote, please visit the AX030120A and AX030121A webpages!
6 Digital Inputs Controllers
AX032160 and AX032161 are rugged I/O controls designed to connect different CAN devices or networks with different baud-rates in harsh environments such as mobile control panels, power generation, co-generation, stationary power, commercial vehicles, off-highway equipment, and more! The controllers read six frequency, PWM, pulse counter, or digital type inputs, connect to two CAN bus networks, and provide galvanic isolation between the control system and the vehicle backbone. Operable at 12, 24, or 48 VDC power input (8 to 60 VDC), AX032160 connects to two SAE J1939 CAN networks and features auto-baud-rate detection and AX032161 connects to two CANopen® networks. AX032160 is user configurable using the Axiomatic Electronic Assistant, AX070506K. AX032161 is configurable using the provided EDS file with standard CANopen® tools. The Six Digital Inputs Controllers are suitable for harsh applications because of their compact, IP67-rated enclosure and TE Deutsch equivalent connector. For more details or to request a quote, please visit the AX032160 and AX032161 webpages!
Isolated Dual Universal Signal CAN Converters
AX130510A and AX130511A are rugged, isolated CAN Converters with 2 signal inputs and 2 signal outputs, operable with 12 or 24 VDC power input (9 to 36 VDC). These I/O controls are designed for oil and gas equipment automation, off-highway machine automation, and power generator set engine control systems. AX130510A and AX130511A accept voltage, current, resistive, frequency, PWM, and digital type inputs and generate voltage, current, frequency, PWM, or digital type outputs with a voltage reference of +5 V (50 mA) available. The Isolated Dual Signal CAN Converters provide 4-way digital isolation—power, inputs, outputs, and CAN are isolated from each other. AX130510A features auto-baud-rate detection and one isolated SAE J1939 CAN port with user configuration via the Axiomatic Electronic Assistant, AX070506K. AX130511A features one isolated CANopen® port with user configuration via the provided EDS file and standard CANopen® tools. The signal controllers feature CE / UKCA markings and are EMC compliant as per ISO 13766-1:2018. Additionally, the controls are compliant with IACS UR E10 test specifications for Type Approval (marine applications). The units are enclosed in compact, IP67-rated TE Deutsch enclosures for harsh applications. Axiomatic also offers a DIN rail model, AX130540, with NFC, SAE J1939 communications, one encoder input, and one magnetic pick-up sensor input. For more details or to request a quote, please visit the AX130510A, AX130511A, and AX130540 webpages!
In Conclusion
I/O controllers are crucial components for reliable data exchange between field devices/machines and digital control systems. Axiomatic specializes in the design and production of control solutions tailored for diverse applications where performance and reliability are of utmost importance. Our team of engineers are based in both Canada and Finland, while our manufacturing operations are located in Canada. To serve our customers worldwide, we have sales offices based in Australia, Canada, and Finland, with a new sales office in the USA recently announced! The top I/O controllers Axiomatic offers in Q2 of 2026 are:
- Item # AX030220 — 0-5VDC to 4-20mA Signal Converter, +5V Reference
- Item # AX030440 — 4 Universal Signal Inputs Controller, SAE J1939
- Item # AX030120A — 10 Universal Signal Inputs Controller, +5V Reference, SAE J1939
- Item # AX030121A — 10 Universal Signal Input Controller, +5V Reference, CANopen®
- Item # AX032160 — 6 Digital Inputs Controller, SAE J1939
- Item # AX032161 — 6 Digital Inputs Controller, CANopen®
- Item # AX130510A — Dual Universal Signal Converter, Isolated, SAE J1939
- Item # AX130511A — Dual Universal Signal Converter, Isolated, CANopen®
- Item # AX130540 — Isolated, Dual Channel, Universal Signal CAN Converter, SAE J1939, NFC, DIN Rail Mount