3UM161.6 Digital Mixed Module

The 3UM161.6 is a high-performance digital mixed I/O module developed by B&R Industrial Automation, designed exclusively for the SYSTEM 2005 modular automation platformB& R Industrial Automation. It integrates digital input, digital output, analog input and analog output functions into a single compact unit, serving as a multifunctional signal interaction core for industrial control racks. Adopting industrial-grade electronic components and optimized circuit design, this module delivers reliable signal acquisition and output capabilities, with outstanding electrical isolation and anti-interference performance. It features flexible channel configuration and rich extended functions, fully meeting diverse signal processing demands on industrial sites. The standard plug-in structure supports fast installation and replacement on the 2005 series backplane, facilitating system deployment and equipment maintenance. With natural air cooling, low noise and long-term stable operation, it is an ideal choice for building compact and highly integrated automation control systems.

The official model of this product is 3UM161.6, an original B&R product manufactured in Austria, complying with the company’s global quality management system and international electrical standards. It is a single-width standard module for the SYSTEM 2005 platform, with a protection degree of IP20 as defined by EN 60529, and is intended for indoor installation inside industrial control cabinetsB& R Industrial Automation. The module has a total power consumption of 6.0 W, including 4.0 W for 24 VDC power supply and 2.0 W for 5 VDC power supply, with an additional 1.5 W power consumption when the built-in potentiometer power supply is activated. It has obtained CE, UKCA and cULus certifications, satisfying international electrical safety and electromagnetic compatibility requirements. The front panel is equipped with dedicated LED indicators to display power status, channel operation and fault information in real time, simplifying on-site inspection and troubleshooting. This module is fully compatible with all backplanes, racks and functional modules of the B&R 2005 series, and requires two TB718 series terminal blocks for external wiring, which need to be purchased separatelyB& R Industrial Automation. Each unit undergoes comprehensive tests such as full-load operation, signal accuracy and protection function verification before delivery to ensure consistent and reliable quality.

As a universal digital mixed I/O module, the 3UM161.6 is equipped with 14 digital inputs, 2 digital outputs, 4 analog inputs and 3 analog outputs, enabling unified processing of digital and analog signals within one moduleB& R Industrial Automation. It acts as a bridge between the control system and on-site equipment, responsible for collecting signals from sensors and switches, and transmitting control signals to actuators and valves. The digital input channels support both sink and source modes, with a 1 ms hardware filter, and provide extended functions including event counting, period measurement and latch input to accommodate high-precision signal acquisition scenariosB& R Industrial Automation. Notably, the two digital output channels can be reconfigured as digital input channels as required, expanding the total number of digital inputs to 16 and enhancing system configuration flexibilityB& R Industrial Automation.

The analog input channels adopt differential input design with 14-bit high resolution and a total conversion time of less than 45 µs for all channels, ensuring high-speed and high-accuracy collection of ±10 V analog signalsB& R Industrial Automation. The analog output channels feature 12-bit resolution and support ±10 V voltage output, with built-in short-circuit protection and power-on enable controlB& R Industrial Automation. An independent ±10 V potentiometer power supply is integrated, which is short-circuit proof and can supply power for external potentiometers to facilitate parameter setting and signal debuggingB& R Industrial Automation. Complete electrical isolation is implemented between digital circuits and analog circuits, as well as between channels and the PLC backplane, effectively suppressing signal crosstalk and external electromagnetic interference. In system architecture, it can be used independently in small single-rack control systems or combined with other modules to form multi-rack distributed systems. It supports hot swapping under normal operating conditions, allowing module replacement without system shutdown and reducing maintenance downtime. As a core I/O component of the SYSTEM 2005 platform, it simplifies cabinet hardware layout and adapts to various application scenarios requiring mixed signal processing.

The 3UM161.6 operates on 24 VDC and 5 VDC power supplies, with a total power consumption of 6.0 W, and an extra 1.5 W power consumption when the potentiometer power supply is enabled. The 14 digital input channels use 24 VDC nominal voltage, support sink and source input modes, and are fitted with a 1 ms hardware filter; they also support event counting, period measurement and latch input functionsB& R Industrial Automation. The two digital output channels adopt 24 VDC source output, where one channel has a rated current of 2 A and a response time of 500 µs, and the other has a rated current of 10 mA and a fast response time of 10 µsB& R Industrial Automation. Both outputs are integrated with overcurrent, short-circuit, thermal shutdown and reverse polarity protection, and can be switched to input mode for flexible applicationB& R Industrial Automation.

The 4 analog input channels accept ±10 V differential signals, with 14-bit conversion resolution, an input impedance of 10 MΩ, a total conversion time of less than 45 µs for all channels, and a basic accuracy of ±0.05% at 25°CB& R Industrial Automation. The 3 analog output channels provide ±10 V voltage output, with 12-bit resolution, a total conversion time of less than 45 µs, short-circuit and wiring misconnection protection, and a basic accuracy of ±0.05% at 25°CB& R Industrial Automation. The built-in potentiometer power supply outputs ±10 V voltage, with a maximum load current of ±80 mA, short-circuit protection, and a basic accuracy of ±0.4% at 25°CB& R Industrial Automation.

In terms of environmental adaptability, the rated operating temperature ranges from 0°C to +60°C, the storage temperature ranges from -25°C to +70°C, and the module can operate normally under a relative humidity of 5% to 95% non-condensing conditions. It adopts natural air cooling with no fans, featuring low noise and high reliability. It has excellent vibration and shock resistance, and can adapt to complex mechanical environments on industrial sites. Electrical isolation is arranged between digital and analog circuits as well as between channels and the PLC side, improving the overall anti-interference capability of the system.

The 3UM161.6 requires two TB718 series terminal blocks for external wiring, including 7TB718.9 screw clamp terminal blocks and 7TB718.91 cage clamp terminal blocks. Both types support 1.5 mm² copper wires and need to be purchased separatelyB& R Industrial Automation. The module is fully compatible with standard backplanes, racks and slot accessories of the B&R SYSTEM 2005 series, enabling direct plug-in and fixed installation. For multi-rack system expansion, dedicated inter-rack connection cables and expansion accessories are required to realize signal and power interconnection between racks.

Professional wire stripping tools and standard industrial copper cables matching the terminal specifications are recommended for on-site wiring. Numbering strips and marking accessories can be equipped to label each channel, simplifying daily inspection and fault troubleshooting. The module supports configuration, parameter setting, real-time status monitoring and fault diagnosis via B&R Automation Studio software. It can be combined with CPU modules, power supply modules, communication modules and other functional units of the 2005 series to build a complete automation control system. For scenarios with high electromagnetic compatibility requirements, external shielding and grounding accessories can be configured to further optimize signal stability.

The 3UM161.6 digital mixed module is designed for automation control systems based on the B&R SYSTEM 2005 platform, and is widely used in multiple industrial fields thanks to its integrated mixed signal processing capability. It is commonly applied in general machinery manufacturing, automated assembly lines, packaging machinery, textile machinery, printing and papermaking equipment, material conveying and lifting machinery, industrial machine tool control systems, intelligent logistics sorting equipment and food and beverage processing machinery.

This module is particularly suitable for medium and small control systems that need to collect both digital switch signals and analog measurement signals. Its highly integrated design reduces the quantity of separate I/O modules, saves control cabinet space and lowers system construction costs. With high signal acquisition accuracy, fast response speed and comprehensive protection functions, it can operate stably for a long time on continuous production equipment and industrial sites with vibration, humidity and electromagnetic interference. It is applicable to both new automation project construction and technical transformation, wiring optimization and function upgrading of old production lines. Whether deployed in an independent single-device control system or a distributed multi-rack control system, it can provide reliable mixed I/O support, making it a cost-effective core component for B&R 2005 series automation systems.

The 3UM161.6 is an original genuine product of B&R Industrial Automation. All production processes including material selection, circuit welding, assembly and testing are carried out in strict accordance with international industrial standards and the company’s internal quality control specifications. Each finished module undergoes multiple rigorous tests before delivery, including signal accuracy test, full-load aging test, protection function test, isolation performance test and vibration test, to ensure all technical indicators meet design requirements. The product has passed CE, UKCA and cULus certifications, complying with EU and North American electrical safety and electromagnetic compatibility standards.

Adopting high-quality conductive materials, insulating materials and industrial-grade chips, the module features strong resistance to aging, high temperature, vibration and electromagnetic interference, with a low failure rate and long service life. B&R provides a complete global quality assurance system and after-sales service network, offering users professional technical consultation, installation guidance, wiring suggestions, software configuration and long-term fault troubleshooting support. As a mature mixed I/O module widely verified in global industrial sites, the 3UM161.6 delivers stable performance and high practicability, and is a reliable choice for I/O configuration and system expansion of B&R SYSTEM 2005 series automation systems.