Controller 2 lines: 10I, 2I UNI, 12 OT M91-2-UN2

PLC controller with built-in HMI – a versatile solution for automation. This Unitronics controller from the M90/M91 series is a compact device combining the functions of a PLC controller and an HMI operator panel. This provides convenient operation and process monitoring without the need for additional elements. It is an ideal solution for both simple applications and more complex automation systems.

Functionality and flexibility

The controller offers 10 digital inputs (including 2 fast 5kHz) and 2 universal inputs that can operate as digital, analog, thermocouple or PT100. The user also has 12 transistor outputs at their disposal. The ability to configure universal inputs allows the controller to be adapted to various measurement and control tasks. In addition, the controller has an RS232/485 communication port, which enables communication in Modbus Master/Slave standard.

Construction and mounting

The device is characterized by a solid construction and IP65/NEM4X protection (from the front), which ensures its reliability in harsh industrial conditions. The controller can be easily mounted on a DIN rail or on a panel, which facilitates integration with the existing infrastructure. The STN LCD display with 2 lines of 16 characters provides a clear image of process parameters and messages. The membrane keypad with 15 buttons enables intuitive operation of the device.

Key features and benefits:

• Integrated HMI: Eliminates the need for an additional operator panel, reducing costs and simplifying the system.
• Versatile inputs: The ability to configure universal inputs increases the flexibility of the device and allows it to be adapted to different applications.
• Modbus communication: Enables integration with other devices in an industrial network.
• Compact dimensions: Allow mounting in limited space.
• Solid construction: Ensures reliable operation in harsh industrial conditions (IP65/NEM4X).
• Ladder programming: Makes programming easier for people familiar with this control method.
• Long battery life: The memory backup battery has a lifespan of up to 7 years at 25°C, minimizing the need for replacement.
• Program memory: It has 36KB of program memory, allowing even complex control algorithms to be implemented.

The controller has 10 digital inputs (including 2 fast with a frequency of 5kHz), 2 universal inputs configurable to work as digital, analog, thermocouple or PT100, and 12 transistor outputs. The device is powered by 12/24 VDC, and the program memory is 36 KB. The display is an STN LCD matrix, offering 2 lines of 16 characters, and communication is via an RS232/485 port.

The M91-2-UN2 controller is a reliable and versatile device that will work in many industrial applications – from simple control systems to more advanced automation solutions. Its compact size, ease of installation and wide range of functionality make it an ideal choice for both professional installers and end users looking for an effective solution for process automation.