OP320-A HMI Text Panel

The OP320-A is a compact 3.7-inch text display HMI that lets operators view and change PLC values such as timers, counters, setpoints and alarms using its built-in keypad. It connects to the PLC over a serial port, runs on 24 VDC, and is a low-cost alternative to a touch panel for simple machines and control panels.

OP320-A Specifications

• Display: 3.7-inch STN LCD (yellow-green)
• Resolution: 192 × 64 pixels
• Input: Membrane keypad
• Communication: RS-232, RS-422 and RS-485 serial port
• Power supply: 24 VDC
• Front protection: IP65
• Programming: Screens designed on a PC and downloaded over the serial port

OP320-A Applications

• Changing timer, counter and setpoint values on machines
• Showing alarms and machine status messages
• Displaying production counts and running hours
• Replacing hard-wired selector and pushbutton panels
• Low-cost HMI for small PLC projects and training

What's in the Box

• 1 × OP320-A text display HMI

Tip: Check that your PLC model is on the OP320-A supported-device list before ordering, since protocols and communication cables differ between PLC brands. Mount the panel in a cutout on the cabinet door, then wire the 24 VDC supply and the serial cable to the PLC's communication port.

Orders placed before 14:00 are ready for pickup the same day. Delivery across Lebanon usually takes 1–3 working days.