Industrial-grade I/O for Valmet DCS Controllers

Robust design for high availability

Valmet I/O hardware is built to withstand the harsh environments of industrial processes while delivering fast control speeds and high accuracy interfaces. Each unit comes with conformal coating as standard and has an operating temperature up to +70 °C.

Valmet offers two series of ACN I/O units, the Valmet M80 and M120. The M80 series is for low voltage and low current analog or digital applications.

For installations needing high voltage isolation between the channels, we have the larger form-factor Valmet M120 series. The M120 also supports digital interfaces for high DC/AC line voltages without external relays.

Redundancy with true hot-swappable elements

Redundancy on ACN I/O cabinet level is implemented using dual Fieldbus, power supply, and IBC controller per pair. The Valmet M120 can also have redundancy on the I/O level where extremely high availability is required. In this configuration, there are two active I/O channels connected to the same field device.

Extensive channel-specific diagnostics, available without additional engineering, ensure you can stay on top of hardware performance. Should an I/O unit need replacing, you change any number of I/O units during operation. Hot swapping is a standard feature of all Valmet I/O models.