Full-function PLC with built-in monochrome graphic LCD display, keypad & onboard I/O configurations; expands up to 256 I/Os.


  • I/O options include high-speed, temperature and weight measurement
  • Auto-tune PID, up to 12 independent loops
  • Recipe programs and data logging via Data Tables
  • Date & time-based control




  • Up to 255 user-designed screens
  • Hundreds of images per application
  • HMI graphs & Trends
  • Memory and communication monitoring  via HMI – No PC needed


  • SMS messaging
  • Remote Access utilities
  • MODBUS protocol support
  • BACnet, M-bus – via 3rd-party converter
  • CANbus: CANopen, UniCAN  (in C models only).
  • FB Protocol Utility: enables serial or TCP/IP communications with 3rd-party device; barcode readers, frequency converters, etc
  • 2 RS232/RS485 built-in ports




I/O options include digital, analog, high-speed, temperature & weight measurement. See tables below:

  • Vision120™ models – Onboard I/Os
  • I/O Expansion Modules


I/O Expansion
Local or Remote I/Os may be added via expansion port or via CANbus. Expand up to 256 I/Os — see table below I/O Expansion Modules
Application Memory 448K (virtual) Ladder code capacity
Scan Time 48µ sec per 1K of typical application
Memory Operands 4096 coils, 2048 registers, 256 long integers (32-bit), 64 double words (32-bit unsigned), 24 floats, 192 timers (32-bit), 24 counters
Data Tables 120K dynamic RAM data (recipe parameters, datalogs, etc.), up to 256K fixed data
SD Card (Micro) Store data logs, Alarm History, Data Tables, Trend data, export to Excel • Back up Ladder, HMI & OS, clone PLCs
Enhanced Features Trends: graph any value and display on HMI • String Library: instantly switch HMI language
Type & colours Graphic STN LCD
Display Resolution: 128 x 64 pixels • Size: 2.4”
Keys 16 keys
Power Supply V120-22- R1 / R2C / T1 / T2C / UN2 : 12/24VDC
V120-22- R6C / R34 / T38 / UA2 / RA22 : 24VDC
Battery 7 years typical at 25°C, battery back-up for all memory sections and RTC
Clock Real-time clock functions (date and time)
Environment IP65/NEMA4X (when panel mounted)
Standard CE, UL  Many of our products are also  UL Class 1 Div 2 and  GOST certified  –  please contact Unitronics