Omron NB3Q-TW01B — 3.5" TFT HMI, Ethernet + USB Host
SKU: NB3Q-TW01BUSD 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. Black bezel, 65,536 colors, 128 MB flash. NB-Designer programming. The compact HMI for small machines.
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Product Overview
The 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. 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.
Decoding NB3Q-TW01B within the NB family
The NB-@@@@ model code has multiple positional segments that encode screen size, generation, and connectivity. The 'NB3Q' = NB-series 3.5-inch class display (vs 'NB5Q' = 5.6-inch, 'NB7W' = 7-inch, 'NB10W' = 10.1-inch). The 'TW' = TFT LCD color display (vs 'SQ' = STN monochrome for older NB series, not in our catalog). The '01' = Ethernet + USB Host variant (vs '00' = RS-232/485 only, no Ethernet, no USB Host). The 'B' = Black bezel (the standard offering; some older NB models had ivory/grey). The NB3Q codepoint thus decodes as 3.5-inch TFT Ethernet HMI with black bezel.
Communication ports — Ethernet + USB Host + RS-232/485 + USB mini-B
The NB3Q-TW01B has five built-in communication interfaces: (a) Ethernet 10/100 Base-T (RJ45) — supports Host Link (serial over Ethernet), FINS, Modbus TCP server, and EtherNet/IP slave. Direct connection to CP1L, CP1H, CJ1M, CJ2M (already done), NJ-series, and NX-series PLCs without a separate Ethernet module. (b) USB Host (USB Type-A) — accepts a USB flash drive for project upload/download, recipe storage, and data logging. The flash drive can hold the project file for transfer between HMIs (clone multiple HMIs with the same project) or for recipe files (operator-loadable product recipes).
NB-Designer programming — drag-and-drop screen design
The NB3Q-TW01B is programmed with NB-Designer, Omron's free HMI development software (downloadable from Omron's website, version 1.6.7 or later supports the NB3Q family). NB-Designer provides a drag-and-drop library of buttons, indicators, numeric input/output, text displays, lamps, meters, charts, and recipes — all linked to PLC memory addresses via Omron's standard tag database. 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
- NB-series 3.5-inch TFT LCD color programmable terminal
- Display resolution: 320 x 240 pixels
- Display colors: 65,536
- Backlight: LED, 50,000 hours lifetime at 25 C normal temperature
- Touch panel: Analog resistive membrane
- Built-in Ethernet 10/100 Base-T - Host Link, FINS, Modbus TCP, EtherNet/IP slave
- Built-in USB Host - USB flash drive for project transfer, recipe, data logging
- Built-in USB mini-B port - NB-Designer programming connection
- SKU: NB3Q-TW01B
- Series: NB-series Programmable Terminals
Best-Fit Applications
- Small packaging machine operator interface - NB3Q-TW01B mounted on the machine's operator console displays run/stop status, fault messages, recipe selection.
- 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.
- Remote I/O enclosure indicator panel - NB3Q-TW01B at a remote junction box displays local I/O status, fault history, and maintenance.
Buying Checklist
- Pick NB3Q-TW01B for 3.5-inch QVGA HMI with Ethernet + USB Host - compact HMI for small machines
- Pick NB3Q-TW00B for 3.5-inch QVGA HMI without Ethernet/USB Host - RS-232/485 only, lower cost
- Pick NB5Q-TW01B-V1 for 5.6-inch QVGA HMI with Ethernet + USB Host - larger screen for medium machines
- Pick NB7W-TW01B for 7-inch WVGA HMI - for medium machines
- Pick NB10W-TW01B for 10.1-inch WVGA HMI - for large machines
- Pick NA5-7W001B-V1 for 7-inch WXGA Sysmac-family HMI - the active production replacement for the NB series
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 x 129.8 x 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 |
Resources & Downloads
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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