Relay Matrix Module for test and measurement setups

A Relay Matrix Module is a switching system that makes multiple test points controllable via a matrix of relays. With this matrix you can switch each test connection individually, enabling a vast range of measurement combinations without physically reconfiguring your test setup.

In practice, this means you can still test two points against each other as standard, but also test multiple points simultaneously or in varying combinations — all controlled via software or a measurement program.

The Relay Matrix Module is available with 6, 12 or 24 test points in two-wire technology, or 3, 6 or 12 test points in four-wire technology, making the system suitable for both standard and high-precision measurements.

The integrated discharge ensures that test points are safely discharged after every measurement, increasing operator safety and protecting the test object. Thanks to the flexible and scalable matrix architecture, multiple modules can be cascaded as needed, so the system easily grows with the application.

Communication takes place via CAN bus or a digital interface, which allows easy integration into automated test environments. In addition, the module tracks the number of switching cycles of the relays, providing valuable information for preventive maintenance and long-term reliability.

The relay matrix is available in various enclosure variants, including 19″ rack mount, desktop and cabinet installation, so it fits seamlessly into a wide range of test setups.

The Relay Matrix Module is particularly suited to be combined with the GLP2-Basic safety tester. Together with the Basic, you can effortlessly switch between all test points of your product from a single test setup, without having to swap measurement cables.

• Maximum flexibility. Whether you need 6, 12 or 24 test points, the matrix module lets you choose the test connections yourself. Each relay can be switched individually, giving you the freedom to set up complex test scenarios without extra hardware.
• Compact and scalable. The modules are available in various enclosures, from desktop-stackable to 19″ rack mount and panel installation. You can combine them modularly to extend the number of test points as needed.
• Integrated safety. Safety comes first in every test setup. The SCHLEICH module has advanced functions such as discharge of test points, so residual charges are safely drained and the operator stays protected.
• Seamless integration. The matrix module communicates via CAN bus with the CANopen protocol, allowing smooth integration with test equipment and automation systems. This makes it ideal for automated test lines or centralised control in combination with our GLP2-Basic.

How does it work in practice?

Suppose you have a high-voltage or insulation test program in which you want to compare different measuring points systematically. With a relay matrix:

1. each test connection is assigned to a relay in the matrix;
2. software determines which relays switch at which moment;
3. you can test combinations such as “point A against B”, “A against C” and so on, all without manual plugging.

Especially in production, laboratory or R&D environments, this saves a lot of time and makes your measurements more reliable.

When do you choose this module?

The Relay Matrix Module is a smart choice when your test setups:

• have many measuring points but must remain clear and controllable;
• demand high measurement precision;
• require safety, automation and integration with test software;
• need to scale up to complex test scenarios without extra hardware investment.

Conclusion

The SCHLEICH Relay Matrix Module is more than a simple relay card. It is a modular, dynamic switching system that takes test automation to a higher level. It combines precision and scalability with robust safety and integration functions, making it a strong choice for technical test and measurement environments where flexibility and reliability go hand in hand.

Want to integrate the Relay Matrix Module into your test setup or automation project? Contact IONIO for tailored advice.