V120-22-RA22 Unitronics V120-22 OPLC,12/10 IO, 2 UNIV

Why Choose the Unitronics V120‑22‑RA22 Vision™ 120 PLC + HMI?

The Unitronics V120‑22‑RA22 is a palm-sized yet powerful integrated PLC with graphic HMI and onboard I/O. It features 12 digital inputs (including analog and temperature-capable channels), one high-speed counter input, 8 relay outputs, 2 analog outputs, and dual RS‑232/RS‑485 serial ports—all expandable up to 256 I/O via UniCAN modules. With support for Modbus RTU/TCP, BACnet, CANopen, M-bus, auto‑tuned PID, data logging, and remote access via GSM/SMS, this rugged IP65-rated device delivers dependable automation and panel control.

Key Features

• Rich Onboard I/O: 12 inputs including digital, analog, and temperature (PT100/TC), plus one high-speed counter channel.
• Relay Outputs: 8 SPST‑NO relays rated at 3 A resistive each (up to 5 A in non-hazardous use).
• Analog Outputs: Two high-resolution channels (0–10 V or 4–20 mA).
• Built-in HMI: 2.4″ monochrome graphic LCD (128×64), yellow-green backlight, with 16 tactile keypad for operator interaction.
• PID & Recipe Functions: Supports auto‑tuned PID loops, recipe management, trend logging, alarms, data tables, and real-time scheduling via RTC.
• Dual Serial Ports: RS‑232/RS‑485 selectable, with support for Modbus RTU/TCP, BACnet, CANopen, M‑bus, SNMP, and GSM/SMS utilities.
• Scalable I/O: Expandable up to 256 points using local or UniCAN networked modules.
• Durable Design: Panel-mount IP65/NEMA 4X front, DIN-rail IP20 rear; rated for 0–50 °C operation, CE/UL Class I Div 2 listed.

Technical Specifications

• Model: V120‑22‑RA22 (Vision™ 120 Series)
• Inputs:
  • 11 digital inputs (PNP/NPN configurable, 24 VDC).
  • 1 input with high-speed counter support (~10 kHz, 32-bit).
  • 2 current-type analog inputs (0–10 V / 0–20 mA / 4–20 mA) and 2 temperature-sensor inputs (RTD Pt100 and thermocouples B/E/J/K/N/R/S/T), 14-bit resolution.
• Relay Outputs: 8 SPST-NO relays, 3 A resistive load per relay (250 VAC / 30 VDC).
• Analog Outputs: 2 channels, selectable 0–10 VDC or 4–20 mA, 12-bit resolution.
• Display & Keypad: 2.4″ STN monochrome graphic LCD (128×64 px), LED backlit, with 16 tactile buttons.
• Memory: 448 KB application capacity, 120 KB dynamic RAM, 192 KB fixed storage; micro‑SD support up to 32 GB.
• Communications: Two ports configurable RS‑232 or RS‑485; supports Modbus RTU/TCP, BACnet, CANopen, M‑bus, SNMP, GSM/SMS remote access.
• Expandable I/O: Up to 256 I/O via EX-A2X (local) or EX-RC1 (remote UniCAN modules).
• Power Supply: 24 VDC nominal (20.4–28.8 VDC).
• Operating Environment: 0 °C to +50 °C ambient; storage −20 °C to +60 °C; 10–95% RH non-condensing.
• Dimensions & Weight: ~96 × 96 × 64 mm; ~300 g.
• Certifications: CE; UL ordinary and Class I Division 2 listed; IP65 panel front, IP20 DIN‑rail rear.

Applications

• Panel-mounted PLC automation with mixed I/O capability including analog and temperature channels.
• Machine control and PID process management with logging, trends, and alarms.
• SCADA, remote monitoring, and telemetry via Modbus, BACnet, CANopen, GSM/SMS.
• Expandable automation designs up to 256 I/O points via UniCAN modules.
• Hazardous and industrial environments requiring UL-listed and IP-rated control hardware.

Frequently Asked Questions

• Which onboard I/O does the V120‑22‑RA22 include?
• Does it support high-speed counter or encoder inputs?
• Can it directly measure analog sensors and temperature probes?
• What communication standards and protocols does it support?
• Is I/O expansion supported?

Trusted by Automation Engineers

“Our automation team chose V120‑22‑RA22 for projects involving analog and temperature measurement combined with relay control—its built-in I/O mix, PLC/HMI integration, and UL Class I Div 2 rating make it a versatile choice.” — Control Systems Engineer