Product Introduction
The Schneider TM3DQ16T Modicon TM3 discrete output module provides 16 transistor PNP outputs in a compact screw terminal package. Designed for high‑density I/O expansion within the Modicon M221, M241, M251, and M262 controller families, this module delivers reliable sourcing outputs at 24 V DC with 500 mA per channel. Its low power consumption—only 15 mA at 5 V DC (on state) and 20 mA at 24 V DC (on state)—makes it an energy‑efficient choice for cost‑sensitive automation lines.
Whether upgrading from older relay output modules or building a new machine, the Schneider TM3DQ16T reduces wiring complexity and operational costs. Its quick response times (450 µs turn‑on and turn‑off) and built‑in diagnostics (one green LED per channel) minimize troubleshooting time, contributing to higher overall equipment effectiveness (OEE).
Technical Specifications
| Parameter |
Value |
| Discrete output type |
Transistor PNP (source) |
| Number of outputs |
16 |
| Output voltage |
24 V DC |
| Output current per channel |
500 mA |
| Power consumption (bus) |
5 mA at 5 V DC / 15 mA at 5 V DC (off/on)
0 mA at 24 V DC / 20 mA at 24 V DC (off/on) |
| Response time |
450 µs turn‑on / 450 µs turn‑off |
| Leakage current |
0.1 mA max |
| Voltage drop |
< 0.4 V |
| Insulation |
Non‑insulated between outputs; AC between output and logic |
| Connection |
10 x 1.5 mm² removable screw terminal, 3.81 mm pitch |
| Dimensions (H × W × D) |
90 mm × 27.4 mm × 84.6 mm |
| Weight |
0.11 kg |
| Standards |
IEC 61131‑2, cULus, CE, UKCA, RCM, EAC, cULus HazLoc |
All values are taken directly from the Schneider TM3DQ16T datasheet. The module supports both vertical (-10…35 °C) and horizontal (-10…55 °C) mounting, with IP20 protection when the protective cover is in place.
Installation & Setup Guidance
Mount the Schneider TM3DQ16T on a TH35‑15 or TH35‑7.5 DIN rail (IEC 60715) or on a panel using the optional fixing kit. Connect outputs via the removable screw terminal block: each channel can drive up to 500 mA at 24 V DC. For unshielded cable runs, keep distance below 30 m to maintain signal integrity. The module draws power from the backplane bus – no external supply needed for the logic side. Ensure the bus connector is securely latched to avoid intermittent faults. Use the 24 V DC external supply for the output load circuits; common the 0 V side to the supply negative.
LED indicators on each channel show output status (green on = output active). During initial commissioning, verify that the PLC configuration matches the module type (TM3DQ16T) and that output addressing aligns with your wiring plan. The module does not require separate configuration software beyond the controller’s I/O mapping.
Compatibility & Integration
The Schneider TM3DQ16T is part of the Modicon TM3 I/O family and integrates seamlessly with:
-
Modicon M221 – via TM3 bus expansion
-
Modicon M241 – ideal for mid‑range machine control
-
Modicon M251 – distributed automation applications
-
Modicon M262 – logic/motion controllers
No additional communication modules are required; the bus connector on the left side of the module links directly to the controller’s I/O bus (5 V DC / 24 V DC power and data). Because the outputs are transistor PNP (sourcing), they are compatible with most industrial sensors and actuators that expect a positive switching signal. For sinking loads, use a suitable interposing relay or a different output module.
Selection Guide & Purchasing Advice
Before purchasing the Schneider TM3DQ16T, verify the following:
- Your controller supports TM3 expansion (check controller manual for max I/O count).
- Your load current per channel does not exceed 500 mA.
- Your load voltage matches 24 V DC (resistive, inductive, or lamp loads – see derating for tungsten loads < 3 W).
- Environmental conditions stay within -10…55 °C operating range and pollution degree 2.
UBEST Automation (ubest101) stocks genuine Schneider TM3DQ16T modules with original packaging. All units are verified for authenticity and full functionality. Should you need assistance with I/O planning or compatibility, contact UBEST Automation for prompt technical support.