Schneider Electric TM3DQ16T TM3 16-Output Transistor Module

TM3DQ16T Modicon TM3 discrete output module: what it is and how the code reads

The TM3DQ16T is a Schneider Electric product described in the datasheet as: discrete output module, Modicon TM3, 16 outputs transistor PNP, screw. The TM3DQ16T is an expansion output module of the Modicon TM3 range that adds sixteen source (PNP) transistor outputs at 24 V DC to a compatible controller. Seven Star LLC supplies the TM3DQ16T in Oman and the GCC as an independent supplier based in Muscat.

Decoding the reference: TM3 is the expansion-module range, DI/DQ/AI marks the function (discrete input, discrete output, analogue input) and the number is the channel count (16 transistor outputs). The TM3DQ16T is compatible with Modicon M241; Modicon M251; Modicon M221; Modicon M262.

Technical specifications of the TM3DQ16T

How the TM3DQ16T works with the controller

The outputs are positive-logic (source) transistor outputs rated 500 mA transistor output each at 24 V DCtransistor. The maximum voltage drop is <0.4 V and leakage 0.1 mA. Response is listed at 450 µs maximum (turn on); 450 µs maximum (turn off).

Transistor outputs are solid-state, so they do not wear with switching like relays, but they drive DC loads only and have limited inrush capability, which is why the datasheet states a maximum tungsten load. Typical loads are indicator lamps, small solenoid valves, relay coils and contactor coils; larger inductive loads need a flyback diode or a suppressor across the coil so that switching spikes do not stress the output stage.

Where the TM3DQ16T fits in the Modicon system

The TM3DQ16T attaches to the side of a Modicon controller and communicates over the internal expansion bus; it is powered through the expansion bus connection (the current draw is listed in the datasheet). Compatible controllers listed are Modicon M241; Modicon M251; Modicon M221; Modicon M262.

Related TM3 modules include TM3DI8 (inputs), TM3DQ16T (outputs) and TM3AI4 (analogue inputs); a typical machine mixes them with a TM221 or TM241 base unit such as TM221CE24R or TM241CE24R. Check the bus power budget when many modules are stacked.

Selection and ordering checklist for the TM3DQ16T

• Load must be 24 V DC and within the per-output current; use relays or contactors for bigger or AC loads.
• Check total module current and group common supply capacity.
• Use flyback protection for inductive loads.
• Count outputs plus spares; sixteen per module.
• Compatibility: Modicon M241; Modicon M251; Modicon M221; Modicon M262.

Installation, commissioning and maintenance of the TM3DQ16T

Clip the module on the DIN rail next to the controller and engage the expansion bus connector, then wire the removable terminal block. Dimensions are 27.4 mm (W) x 90 mm (H) x 84.6 mm (D) and weight 0.11 kg. Power off before attaching or removing modules, label the terminal block and keep wiring tidy for service.

After power-up, configure the module in the programming software and verify each channel with a simulator or live signal. Retain a documented I/O list. Modules have no user-serviceable parts: replace as a unit and restore the removable terminal block.

Typical applications of the TM3DQ16T in Oman and the GCC

The TM3DQ16T extends controllers on skids, pump stations, packaging machines, HVAC plant and utilities across Oman and the GCC. In those environments good cabinet cooling and clean wiring matter more than module choice.

TM3 module variants compared with the TM3DQ16T

Pick the variant by signal type first, then by channel count. For the TM3DQ16T the function is discrete output module with 16 transistor outputs, so a machine that needs both inputs and outputs will normally use more than one module type on the same controller. Expansion modules are specified by their own reference, so list each one with quantity when requesting a quotation.

Information to send with an RFQ for the TM3DQ16T

• Full reference TM3DQ16T and quantity
• Controller model it will connect to
• Signal types and ranges
• Delivery location and timing

Documents and quotation

A datasheet for this product is attached on this page. It lists the electrical, mechanical and environmental data summarised above.

Send us the part number, quantity and application and we will confirm availability and a quotation. Seven Star LLC is an independent supplier in Muscat and does not represent itself as an official channel of the manufacturer.