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Part of the Omron NB-Series HMIs series — see the full model table, lifecycle status and replacement parts.

Omron NB3Q-TW01B 3.5-inch TFT HMI - front view showing the 320x240 pixel color LCD display with a sample operator screen, the analog resistive touch panel, the black bezel, and the 4 mounting brackets on the rear

Omron NB3Q-TW01B — 3.5" TFT HMI, Ethernet + USB Host

SKU: NB3Q-TW01B

USD 170.00

NB-series 3.5-inch QVGA 320x240 TFT LCD color HMI with built-in Ethernet, USB Host, USB mini-B, RS-232C, RS-422/485

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Product Overview

The Omron NB3Q-TW01B is Omron's 3.5-inch TFT LCD color HMI in the NB-series programmable terminal family — the compact, value-tier HMI for small machines where 3.5 inches is sufficient for the operator interface. manufactured by Omron Corporation. Hengyixin Automation ships this HMI panel from Xiamen with the NB-Designer project file on a USB drive included.

The 'TW01B' model code encodes Ethernet + USB Host connectivity plus a black bezel (the 'TW00B' sibling has no Ethernet or USB Host; the 'TW01B-V1' designation is reserved for NB5Q+ hardware revisions). With 320x240 pixel QVGA resolution, 65,536-color TFT LCD, analog resistive touch panel, and a compact 103.8x129.8 mm bezel, the NB3Q-TW01B is the right pick for small machines, compact operator stations, and remote I/O enclosures where a larger HMI (5.6, 7, or 10.1 inch) would be too big.

The typical workflow: (1) Create a new project, select NB3Q-TW01B as the target model. (2) Add the PLC protocol (Host Link / FINS / Modbus / EtherNet-IP) and configure the IP address / serial port. (3) Define tags (PLC memory addresses) in the tag database.

Key Features

  • Display colors: 65,536
  • Display resolution: 320 x 240 pixels
  • NB-series 3.5-inch TFT LCD color programmable terminal
  • Backlight: LED, 50,000 hours lifetime at 25 C normal temperature
  • SKU: NB3Q-TW01B
  • Series: NB-series Programmable Terminals

Best-Fit Applications

  • Conveyor control panel HMI - NB3Q-TW01B mounted in a conveyor control panel displays zone status, VFD speed, current product in.
  • Compact machine tool HMI - NB3Q-TW01B on a small lathe or mill displays spindle RPM, feed rate, tool position, and.
  • Small packaging machine operator interface - NB3Q-TW01B mounted on the machine's operator console displays run/stop status, fault messages, recipe selection.

Buying Checklist

  • Pick NB7W-TW01B for 7-inch WVGA HMI - for medium machines
  • Pick NB10W-TW01B for 10.1-inch WVGA HMI - for large machines
  • Pick NB3Q-TW00B for 3.5-inch QVGA HMI without Ethernet/USB Host - RS-232/485 only, lower cost

Technical Specifications

Model NB3Q-TW01B
Series NB-series Programmable Terminals
Type 3.5-inch QVGA TFT LCD color HMI with Ethernet + USB Host
Display Type TFT LCD color
Display Size 3.5 inch diagonal
Display Resolution 320 x 240 pixels (QVGA)
Display Colors 65,536 colors (16-bit color)
Backlight LED (50,000 hours lifetime at 25 C)
Dimensions (W x H x D) 103.8 × 129.8 × 52.8 mm
Operating Temperature 0 to +50 C
Storage Temperature -20 to +60 C
Certifications CE, cULus listed (UL 508), KC, Lloyd's Register

FAQ for NB3Q-TW01B

What's the difference between NB3Q-TW01B and NB3Q-TW00B?
Both are 3.5-inch QVGA TFT LCD color HMIs in the NB-series with the same 320x240 resolution, 65,536 colors, 128 MB flash memory, analog resistive touch, RS-232C, RS-422/485, and USB mini-B programming port. The differences: (a) Ethernet port - TW01B (this SKU) has a built-in 10/100 Base-T Ethernet port (RJ45) supporting Host Link, FINS, Modbus TCP, and EtherNet/IP slave; TW00B (NOT in catalog) has no Ethernet.
Is the NB3Q-TW01B discontinued?
Yes - per Omron's product discontinuation notice, the NB-series (including NB3Q-TW01B) is being discontinued, with last-order date around March 2025. The NB3Q-TW01B continues to be supported as a legacy spare-parts product through approximately 2030 (Omron's standard 10-year parts-and-repair commitment). For new installations, the recommended replacement is the NA5-series Sysmac-family HMI (NA5-7W001B-V1, 7-inch WXGA — NOT in catalog).
What PLCs can the NB3Q-TW01B connect to?
The NB3Q-TW01B supports multiple PLC communication protocols and is compatible with most Omron PLC families: (a) CP1E (NOT in catalog) via RS-232C (Host Link) or RS-422/485 (multi-drop Host Link, requires CP1W-CIF11/CIF12 option on CP1E). (b) CP1L via RS-232C, RS-422/485, or Ethernet (the CP1L-EM variants have built-in Ethernet, the CP1L-M/CP1L-J need CP1W-CIF41 Ethernet option). (c) CP1H via RS-232C, RS-422/485, or Ethernet (CP1W-CIF41 option).
Can the NB3Q-TW01B log data to a USB flash drive?
Yes - the NB3Q-TW01B's USB Host port accepts a USB flash drive (FAT32 formatted, up to 32 GB typical) for three functions: (a) Project transfer - store the HMI project file on the flash drive and load it into the HMI on boot (useful for cloning multiple HMIs with the same project). (b) Historical data logging - log PLC tag values at scheduled intervals (e.g., every 10 seconds) to CSV files on the flash drive.

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