M90/M91

by Unitronics

The M90/M91™ is an innovative micro-PLC (Programmable Logic Controller) with a built-in operating panel. The operating panel offers an LCD that can display two 16-character text lines, and a keypad (one line in the M90 models). The M90/M91™ series offers a variety of onboard I/O configurations, including direct temperature and weight measurement inputs; the configuration can be expanded by adding I/O Expansion Modules. The M90/M91™ is the perfect control solution for small-to-medium applications such as water treatment, automated machines, and process control. 

Benefits

  • Save our customers programming time, wiring, and cabinet space
  • Cut budget by reducing requirements for additional hardware
  • Prevent you from wasting time setting up Panel-PLC communication

Specifications

PLC

  • Up to 38 onboard I/Os: Digital, Analog and temperature measurement inputs, Relay or Transistor outputs
  • Shaft encoder inputs and PWM outputs
  • I/O Expansion Modules: enable up to 96 digital I/Os plus additional analog, temperature and weight inputs (number/type vary according to model)
  • RTC, enabling time-and-date controlled operations
  • 24K-36K (virtual) Ladder code capacity
  • Functions include: math, store/load, compare, and clock functions, plus immediate read/write to I/Os, interrupts and loops
  • 1K database
  • 4 PID loops including auto-tune
  • Mounting: Panel or DIN-rail

HMI

  • Two 16-character text lines, LCD illuminated screen
  • Alphanumeric 16-key keypad, for data entry and to initiate tasks
  • Multilingual display - supports over 15 languages
  • Up to 80 user-designed screens, displays conditional messages
  • Display conditional text, time, date, bit status, timer & integer values (up to 64 HMI variables per application)
  • "List" variables: link up to 150 messages to a single variable, to add 2K's of conditional text. "List" variables allow easy scrolling between recipes/menus via the keypad
  • Info mode: view I/O status, integer values, and system data on the LCD display

Communications

  • RS232 or RS232/RS485 serial communication port
  • GSM/SMS support
  • Remote access via network GPRS, GSM, CDMA or landline modems
  • Data Export to/from Excel
  • MODBUS (master/slave)
  • CANbus port (model dependent)
  • OPC/DDE server

Special Features

  • Flexible PID m: Accurate process control—plus all the advantages of flexible PLC programming. M91 controllers enable you to take control with 4 built-in PID loops, including auto-tune.
  • Database: Log production quantities, monitor temperatures, or record any type of required data with the embedded 1024 integer database.
  • Shaft-encoder Inputs: Use the controller’s integral 10kHz inputs as high-speed counters, frequency measurers, or to directly connect to shaft-encoders.
  • PWM Outputs: Control stepper motors or PID-based applications, via PWM, with the M90/91’s onboard PWM outputs (model-dependent).
  • Easy Scrolling between Recipes: Simply scroll between pre-programmed recipes or menus, using the panel’s arrow keys. This enables you to choose and activate a desired task via the HMI - immediately, on-site.
  • Upload: Full source, password-protected upload option enables you to restore the application, as if it was just saved on your PC (including comments and symbols).
  • Temperature & Weight measurement: Onboard direct temperature inputs (PT100 or Thermocouple) give you the ability to control temperature-based applications, Loadcell I/O Expansion Modules enable you to hook up weight/strain inputs and achieve accurate measurements—no additional hardware required. (M91 series only, features are model-dependant). 
  • Multilingual Display: Our PLC textual displays support over 15 languages. Graphical displays support any language, according to the fonts installed in your version of Windows.
  • Print Utility: Log system data or events-on paper. Unitronics PLCs can send scheduled or event-provoked messages to a serial printer, either directly or via modem.
  • Time-based Control: Do you need a specific task to be performed at a specific time and date? Simply mark the hour, date or weekday in the PLC software—and you have created time-based control in 3 clicks.
  • Information Mode: Press the key on the operator panel to enter the PLC’s Information Mode, providing you with powerful diagnostic capabilities.

Software

All-in-one software enables you to develop your PLC and HMI applications in one environment, establish modem and data communications, test and debug your programs in on-line mode, remotely access your controller, and more.

Use the Ladder editor to:
  • Program your control application
  • Click-and-drop contacts, coils, timers and function blocks
  • (math, logic, clock)
  • Implement SMS, PID, Drum, and special functions such as MODBUS and Loadcell (model-dependent)
Use the HMI editor to:
  • Design your operator interface
  • Compose operator instructions
  • Assign functions to keys
  • Create and display variables

Models

M90-T

8 Digital Inputs including 1 Input which can function as either high-speed counter, shaft encoder, frequency measurer or as normal digital input

6 Transistor Outputs

1 Line x 16 characters, STN LCD, LED backlight HMI Displays

1 RS232 Communication Port

24 VDC power supply

M90-TA2-CAN

  • 10 Digital Inputs including 1 Input which can function as either high-speed counter, shaft encoder, frequency measurers or as normal digital inputs
  • 2 Analog Input
  • 8 Transistor Outputs
  • 1 Analog Output
  • 1 Line x 16 characters, STN LCD, LED backlight HMI Displays
  • 1 RS232 Communication Port
  • CANbus
  • GSM support - enables SMS messages
  • 24 VDC power supply

M90-19-B1A

  • 10 Digital Inputs including 1 Input which can function as either high-speed counter, shaft encoder, frequency measurers or as normal digital inputs
  • 1 Analog Input
  • 6 Relay Outputs
  • 1 Lines x 16 characters, STN LCD, LED backlight HMI Displays
  • 1 RS232 Communication Port
  • GSM support - enables SMS messages
  • 24 VDC power supply

M91-2-R1

  • 10 Digital Inputs including 3 Inputs which can function as either high-speed counters, shaft encoders, frequency measurers or as normal digital inputs
  • 1 Analog Input
  • 6 Relay Outputs
  • 2 Lines x 16 characters, STN LCD, LED backlight HMI Displays
  • RS232 Communication Port
  • MODbus
  • GSM support - enables SMS messages
  • 12/24 VDC power supply

M91-2-R34

  • 22 Digital Inputs including 3 Inputs which can function as either high-speed counters, shaft encoders, frequency measurers or as normal digital inputs
  • 2 Analog Input
  • 12 Relay Outputs
  • 2 Lines x 16 characters, STN LCD, LED backlight HMI Displays
  • RS232 Communication Port
  • MODbus
  • GSM support - enables SMS messages
  • 24 VDC power supply

M91-2-R2C

  • 10 Digital Inputs including 3 Inputs which can function as either high-speed counters, shaft encoders, frequency measurers or as normal digital inputs
  • 2 Analog Input
  • 6 Relay Outputs
  • 2 Lines x 16 characters, STN LCD, LED backlight HMI Displays
  • RS232 Communication Port
  • CANbus
  • MODbus
  • GSM support - enables SMS messages
  • 12/24 VDC power supply

M91-2-R6C

6 Digital Inputs including 1 Input which can function as either high-speed counter, shaft encoder, frequency measurer or as normal digital input

6 Analog Input

6 Relay Outputs

2 Lines x 16 characters, STN LCD, LED backlight HMI Displays

RS232 Communication Port

CANbus

MODbus

GSM support - enables SMS messages

24 VDC power supply

M91-2-T2C

  • 12 Digital Inputs including 3 inputs which can function as either high-speed counters, shaft encoders, frequency measurers or as normal digital inputs
  • 2 Analog Inputs
  • 12 Transistor Outputs 2 First Outputs can function as PWM
  • 2 Lines x 16 characters, STN LCD, LED backlight HMI Displays
  • 1 RS232 Communication Port
  • CANbus
  • MODbus
  • GSM support - enables SMS messages
  • 12/24 VDC power supply

M91-2-T1

  • 12 Digital Inputs including 2 inputs which can function as either high-speed counters, shaft encoders, frequency measurers or as normal digital inputs
  • 12 Transistor Outputs First 2 outputs can function as PWM
  • 2 Lines x 16 characters, STN LCD, LED backlight HMI Displays
  • RS232 Communication Port
  • MODbus
  • GSM support - enables SMS messages
  • 12/24 VDC power supply

M91-2-T38

  • 22 Digital Inputs including 2 inputs which can function as either high-speed counters, shaft encoders, frequency measurers or as normal digital inputs
  • 16 Transistor Outputs First 2 outputs can function as PWM
  • 2 Lines x 16 characters, STN LCD, LED backlight HMI Displays
  • RS232 Communication Port
  • MODbus
  • GSM support - enables SMS messages
  • 24 VDC power supply

M91-2-UA2

  • 12 Digital Inputs including 1 input which can function as either high-speed counter, shaft encoder, frequency measurer or as normal digital input
  • 2 Analog Inputs - can be used as thermocouple inputs
  • 10 Transistor Outputs First 2 outputs can function as PWM
  • 2 Analog Outputs
  • 2 Lines x 16 characters, STN LCD, LED backlight HMI Displays
  • RS232 Communication Port
  • MODbus
  • GSM support - enables SMS messages
  • 24 VDC power supply

M91-2-UN2

  • 12 Digital Inputs including 2 inputs which can function as either high-speed counters, shaft encoders, frequency measurers or as normal digital inputs
  • 2 Analog Inputs - can be used as thermocouple or PT100 inputs
  • 12 Transistor Outputs First 2 outputs can function as PWM
  • 2 Lines x 16 characters, STN LCD, LED backlight HMI Displays
  • RS232 Communication Port
  • MODbus
  • GSM support - enables SMS messages
  • 12/24 VDC power supply

M91-2-RA22

  • 12 Digital Inputs including 1 input which can function as either high-speed counter, shaft encoder, frequency measurer or as normal digital input
  • 2 Analog Inputs - can be used as thermocouple or PT100 inputs
  • 8 Relay Outputs
  • 2 Lines x 16 characters, STN LCD, LED backlight HMI Displays
  • RS232 Communication Port
  • MODbus
  • GSM support - enables SMS messages
  • 24 VDC power supply