TM3DQ16TG | Schneider Electric 16-Channel Digital Output Module

TM3DQ16TG: 16-Channel Transistor Output Expansion for Modicon M2xx

The Schneider Electric TM3DQ16TG is a digital output expansion module from the Modicon TM3 series. It provides 16 source-type (PNP) transistor outputs rated at 0.5 A per channel. Because machine builders frequently need more discrete outputs than a compact PLC offers onboard, this module extends the controller without changing the base unit. Consequently, panel space stays predictable and wiring remains modular.

Key Specifications of the TM3DQ16TG

• Module type: Digital output, transistor, source (PNP)
• Channels: 16
• Signal type: 24 Vdc transistor output, source
• Output current: 0.5 A per channel (max)
• Isolation: 500 V AC between output and internal logic
• Response time: 450 µs max. (turn on/off)
• Bus current: 35 mA at 5 V DC (all outputs on); 5 mA (all outputs off)
• Diagnostics: Module status, bus status; short-circuit and overload protection
• Wiring: Removable spring-cage terminal block, 3.81 mm pitch
• Protection rating: IP20

Notably, the 450 µs maximum response time suits fast discrete actuation. Meanwhile, the 500 V AC isolation barrier separates outputs from internal logic. However, there is no isolation between channels, so shared return paths must be planned carefully. Refer to the official datasheet for power consumption, which is not available here.

TM3DQ16TG Comparison With Common Output Alternatives

• Versus relay output modules: transistor outputs switch faster and wear less, yet they are DC-only.
• Versus 8-channel modules: the TM3DQ16TG doubles channel density in the same 27.4 mm width.
• Versus sink (NPN) modules: this module is source (PNP), so verify the common reference of your loads.
• Versus onboard PLC outputs: expansion preserves the base controller's own I/O count for other duties.

Applications and Integration

Typical applications include solenoid valve banks, indicator lamps, and small DC contactors. The module also fits packaging, material handling, and assembly cells. Because it is compatible with Modicon M221, M241, M251, and M262 platforms, integration follows the standard TM3 bus arrangement. During commissioning, confirm the 24 Vdc supply and the source output reference before energizing loads. In addition, keep the spring-cage terminals seated and route signal wiring away from high-current cables.

Installation and Maintenance Notes

Mount the module in a clean enclosure rated IP20 or better. The operating temperature range is 0...+55 °C, while storage tolerates -25...+70 °C. Inspect terminals periodically for looseness and contamination. Since short-circuit and overload protection are built in, diagnose faults through the module and bus status indicators. Always follow the manufacturer's safety manual during service.

Availability

The TM3DQ16TG is active and in stock and ready to ship. Contact AutoDCSTech with your exact requirements for precise matching.