Product Introduction
The Schneider Electric TM2DMM240RF Discrete I/O Module is a versatile mixed digital input/output expansion unit designed to extend the capabilities of TM2 series logic controllers. Engineered for compact industrial automation systems, this module combines multiple discrete inputs and outputs into a single DIN‑rail mountable unit, enabling flexible signal acquisition and command execution without the need for separate I/O devices.
Built for responsive control and rugged industrial environments, the TM2DMM240RF supports fast digital processing, high electrical noise immunity, and reliable logic interfacing. Its tight integration with TM2 controllers via the standardized expansion bus simplifies installation and configuration, making it a preferred solution for machine control, material handling, OEM equipment, and distributed control applications.
Technical Specifications
| Specification | Details |
|---|
| Manufacturer | Schneider Electric |
| Model Number | TM2DMM240RF |
| Module Type | Discrete I/O Module |
| Product Series | TM2 Logic & I/O Expansion |
| Digital Inputs | 24 Channels |
| Digital Outputs | 8 Channels |
| Input Voltage | 24 V DC |
| Output Voltage | 24 V DC |
| Input Logic Level | Positive Logic |
| Output Logic Type | Sourcing |
| Input Current per Channel | Approx. 8 mA |
| Output Current per Channel | 500 mA |
| Response Time | <1 ms typical |
| Isolation | Optical isolation for inputs |
| Supply Method | Powered via TM2 Controller |
| Mounting Method | DIN‑Rail Bus Expansion |
| Protection Rating | IP20 |
| Operating Temperature | 0 °C to 55 °C |
| Dimensions (H × W × D) | 90 × 90 × 70 mm |
| Weight | Approx. 0.29 kg |
Industrial Applications
Machine Automation
In automated systems where checks and discrete control signals are required, this module provides the interface between sensors, actuators, and the TM2 controller.
Material Handling & Conveyors
Used to capture multiple sensor statuses (e.g., presence, position) and to control downstream solenoids, drives, or signaling indicators.
Packaging & Assembly Lines
Ideal for packaging machinery and assembly workstations that require dense I/O connectivity consolidated in one module.
OEM & Embedded Control Systems
Perfect for OEM control panels where a mix of inputs and outputs is needed without adding multiple discrete modules.
Key Advantages
High I/O Density in One Module
With 24 inputs and 8 outputs, the module combines signaling capacity in a compact footprint, minimizing the number of physical components required.
Fast, Responsive Logic Performance
Typical sub‑millisecond response times ensure discrete events are captured and acted upon promptly in control logic.
Optical Isolation for Inputs
Enhances system noise immunity by minimizing the effect of electrical disturbances on signal integrity.
Sourcing Outputs with Strong Drive
Each output supports up to 500 mA, allowing direct driving of relays, indicators, and similar loads without external interfacing hardware.
Seamless TM2 Expansion Integration
Designed to plug directly into TM2 logic controllers via the expansion bus, enabling quick installation and unified configuration
Technical FAQs
1. How many digital inputs are provided?
The module delivers 24 discrete digital input channels.
2. How many digital outputs are included?
It includes 8 digital output channels.
3. What voltage levels do the I/O operate at?
Both inputs and outputs are designed for 24 V DC signals.
4. What is the typical response time?
Discrete signals are processed in under 1 ms for fast system response.
5. Are the input channels isolated?
Yes — optical isolation is used for the digital inputs to improve noise immunity.
6. What is the maximum current per output channel?
Each output can supply up to 500 mA, suitable for driving common industrial loads.
7. How is power supplied to this module?
It receives power through the TM2 controller’s expansion bus.
8. Where is this module mounted?
It mounts on DIN‑rail using the TM2 expansion bus connector.
9. What types of field devices can it interface with?
Connects with sensors, switches, contactors, relays, and signaling indicators that operate at 24 V DC.
10. What industries are typical users of this module?
Manufacturing automation, packaging equipment, material handling, and OEM control systems frequently deploy this module.
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