HMI panel supplier in Bangladesh

Need an HMI panel supplier in Bangladesh? Tell us the machine, the PLC and its protocol, the screen size and where the panel will sit. We source it from a verified seller, check the protocol, front sealing and touch type, and deliver.

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Delivered by Roptan

Prefer to deal with suppliers yourself? Post it on the requirement board

Buying HMI panels in Bangladesh

An HMI panel is the screen, or the keys, an operator uses at one machine: it shows status and alarms and takes start, stop and set-point commands. It is also called an operator interface terminal (OIT). Machine builders and plant engineers in Bangladesh fit HMIs on new machines, and buy them to replace failed panels or when a PLC is upgraded.

Three points decide whether an HMI works on your machine: the protocol, the touch type and the front seal. As your HMI panel supplier in Bangladesh, Roptan writes them into the order, sources from a verified seller, checks them before dispatch and delivers. The seller or your integrator builds the screens and commissions the panel.

Kinds of HMI panel

Resistive touch HMIs

The screen responds to pressure, so it works with a stylus, bare fingers or gloved fingers. Choose it where operators wear gloves, or where a stylus suits small on-screen buttons.

Capacitive touch HMIs

The screen needs a bare finger or a capacitive stylus. Some cannot be used with gloves and can misread with a little water on the glass. Choose it for clean, dry areas.

Keypad and membrane HMIs

Membrane switches or rubber keypads instead of a touch screen. They suit simple start, stop and set-point tasks with few screens, and operators who press keys with gloved hands.

Panel HMI or PC-based SCADA

A panel HMI serves one machine. For a view across several machines, a supervisory computer runs SCADA software; in larger systems several HMIs run on client computers linked to a master station.

How to brief an HMI panel supplier in Bangladesh

PLC, protocol and port: State the PLC model, the protocol, such as Modbus, the port and the node addresses. Many PLC protocols are tied to one maker, so the HMI must list a driver for yours.
Several makes of controller: If one HMI or SCADA must read controllers from different makers, ask whether it supports OPC UA (IEC 62541) as client or server.
Front sealing: State the exact IP code for the front face once mounted in its cut-out. A first digit 6 means dust-tight; second digits 5 and 6 cover water jets.
Touch type and gloves: Say whether operators wear gloves and whether the screen gets wet, since that decides resistive or capacitive touch.
Alarms: Ask how alarms are grouped and prioritised. Too many alarms in a plant upset, an alarm flood, is the usual usability failure.
Heat and control power: Ask for the datasheet's operating temperature range, since summer maxima usually reach 38 to 41 °C. Feed the HMI from a stabilised, surge-protected 24 V supply.
Network access: For a networked HMI, ask whether it has user accounts, password change and port control, and whether the model is assessed against IEC 62443-4-2.

Standards and papers for HMI panels

IEC 60529: The IP code for enclosures (1989 edition with Amendments 1 and 2). Codes are not cumulative: IPX7, immersion, does not imply IPX5 or IPX6, water jets.
IEC 61131-2:2017: Functional and EMC requirements and tests for PLCs and peripherals such as HMIs. A panel sold with a PLC is usually assessed against it; ask which report covers the HMI itself.
IEC 62682:2022: Management of alarm systems for the process industries, which replaced the 2014 edition. Use it as the reference when alarm screens are designed.
IEC 61000-6-2 and IEC 61000-6-4: Generic EMC immunity and emission standards for industrial environments, used where no product EMC standard applies.

What moves the price of an HMI panel

Screen size and resolution, which also set the panel cut-out.
Touch type: resistive, capacitive, or a keypad panel without a touch screen.
Front sealing: the IP code the front face must meet for dust or water jets.
Ports and protocols: extra serial or Ethernet ports, OPC UA, or a SCADA link.
Screen building: designing screens, alarms and recipes, and testing them with the PLC.

Lead times and delivery

Lead time depends on whether the exact model, screen size and protocol driver are in stock in Dhaka or imported to order, and on how many screens must be built and tested with your PLC. Roptan confirms dates and any minimum quantity in the quote.

We deliver the HMI to your plant or panel builder anywhere in Bangladesh. The seller or your integrator loads the project and tests each screen and alarm against the PLC. You receive the project file with a backup, the passwords, the IP rating document, the warranty and a VAT invoice (Mushak 6.3).

What we check for this order

Protocol provenWe check the HMI talks to your PLC over the protocol and port named in the order before it is accepted.
Front IP codeWe check the IP code is stated to IEC 60529 for the front face once the panel is mounted in its cut-out.
Touch with glovesWe ask for the screen to be tried with the gloves your operators wear, since some capacitive screens will not respond.
Project handoverWe check the order states that the project file and a backup are handed over at commissioning.

Questions buyers ask

Resistive or capacitive touch screen?

Resistive if operators wear gloves or use a stylus, since it responds to pressure. Capacitive if operators use bare hands in a clean, dry area; some capacitive screens cannot be used with gloves and can misread with a little water.

Can a new HMI replace an old one on our existing PLC?

Only if the new panel supports your PLC's protocol and port. Send the PLC model, protocol, port and node addresses, the old panel's cut-out size and, if you have it, the old project file. Screens may need rebuilding in the new panel's software, so ask for that work in the quote.

What IP code do we need in a washdown area?

For water jets, a second digit of 5 or 6; for dust-tight, a first digit of 6. A panel rated IPX7 for immersion is not necessarily rated for jets. Ask for the code of the fitted front face, and state the code you need in the order.

Do HMIs with Wi-Fi need BTRC clearance?

Yes, usually. Panels and gateways with Wi-Fi, 4G or Bluetooth contain a radio, so the importer needs BTRC enlistment and a No Objection Certificate before the shipment arrives. Wired versions avoid this step. Say which you want so the quote is for a version that can be cleared.

How soon will I hear back about industrial automation and drives?

Within 48 hours of a complete requirement, with a price and a delivery date. A requirement is complete when it has the quantity, where it is needed and by when.

Who do I deal with?

With Roptan, when Roptan manages the order: we buy from the verified seller and deliver to you. With the supplier directly, when you post on the requirement board and choose a quote yourself.