V120-22-T38 Unitronics V120-22 OPLC,22/16 IO

Why Choose the Unitronics V120-22-T38 Vision  120 PLC + HMI?

The Unitronics V120-22-T38 is a powerful and compact PLC with integrated graphic HMI, offering a robust feature set in the Vision 120 Series. It includes 22 digital inputs (2 configurable as high-speed counter channels), 16 transistor outputs (first two PWM-capable), dual RS-232/RS-485 ports, and expands to up to 256 I/O points. With built-in support for PID control, data logging, Modbus RTU/TCP, GSM/SMS messaging, and CANopen/UniCAN networking, it delivers full functionality for automation, telemetry, and remote operations.

Key Features

• 22 Digital Inputs (includes 2 high-speed counter/encoder-capable inputs up to ~10kHz)
• 16 Transistor Outputs, with first 2 supporting PWM/high-speed signal output
• Graphic HMI: 2.4″ STN monochrome display (128×64 px) with 16-key keypad supporting up to 255 custom screens and trend graphics
• Dual RS-232/RS-485 ports for serial communication and remote access via GSM/GPRS modems
• Advanced communication protocols: Modbus RTU/TCP, CANopen, UniCAN, OPC/DDE, FB Protocol Utility
• Automation tools: Auto-tuned PID loops (up to 12), data tables, recipe control, trend displays, alarm management
• I/O expansion: Supports up to 256 points with local or remote modules
• Industrial grade: 24VDC power supply, IP65/NEMA4X panel front rating, UL/CE certification, operating temperature 0-50 °C

Technical Specifications

• Model: V120-22-T38 (Vision 120 Series)
• Inputs: 22 digital inputs; 2 can function as high-speed counters (encoder/frequency) at ~10kHz, 32-bit resolution
• Outputs: 16 transistor (PNP) outputs; first 2 support PWM up to ~2kHz
• HMI Display: 2.4″ STN monochrome LCD (128×64), white LED backlight
• Keypad: 16 tactile membrane keys, for display navigation and control
• Memory: 448KB application logic; 120KB dynamic RAM; 192KB fixed flash; micro-SD up to 32GB
• Communication: Two RS-232/RS-485 selectable ports; optional modem for GSM/SMS; supports Modbus RTU/TCP, CANopen, UniCAN, OPC, SNMP, etc.
• Automation Functions: Up to 12 PID loops, data logging, recipes, trends, alarms, scheduling via RTC
• I/O Expansion: Supports up to 256 I/O through EX-A2X or EX-RC1 modules
• Power Supply: 24VDC (20.4 - 28.8V), ~4mA per transistor output, typical]
• Operating Conditions: 0 - 50 °C ambient; storage 20 to +60 °C; 10 - 95% RH non-condensing
• Certifications & Rating: CE and UL listed (Ordinary & Class I Div2); IP65/NEMA4X panel front; IP20 rear/DIN rail mounting

Applications

• Embedded control with compact HMI for OEM machinery panel installations
• High-speed counting and encoder-based measurement via configurable digital inputs
• Automation with PWM control, recipe and trend management using integrated PID and data log tools
• Remote SCADA or telemetry systems using Modbus, CANopen, UniCAN, GSM/SMS or OPC interfaces
• Expandable distributed control systems using additional I/O modules for large-scale automation

Frequently Asked Questions

• How many inputs and outputs does this model offer?
• Can it support high-speed counter or encoder inputs?
• What communication protocols and ports are supported?
• Does it provide PID control and data logging?
• Can I expand its I/O capacity?

Trusted by Automation Engineers

"Our field teams install the V120-22-T38 in compact automation panels where mixed I/O, PWM outputs, and high-speed counting are required. It integrates stability and expandability with ease." - Industrial Automation Lead