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Schneider TM3DI8 Modicon TM3 Discrete Input Module
The Schneider TM3DI8 is a compact and reliable discrete input module designed for use with Modicon TM3 expansion systems. It offers 8 channels of 24 V DC input, making it ideal for basic digital signal acquisition in automation systems.
Technical Specifications
| Parameter | Value |
|---|---|
| Product Type | Discrete Input Module |
| Number of Inputs | 8 digital inputs |
| Input Type | Sink or Source (IEC Type 1) |
| Input Voltage | 24 V DC |
| Input Current | 3 mA typical |
| Voltage Range | 19.2 to 30 V DC |
| Input Impedance | Approx. 7.5 kΩ |
| Isolation Between Channels | No |
| Response Time | 3 ms On / 3 ms Off |
| Mounting Type | DIN Rail |
| Protection Index | IP20 |
| Operating Temperature | 0 to 55 °C |
| Storage Temperature | -40 to 85 °C |
| Dimensions (W x H x D) | 90 x 84.6 x 27.4 mm |
| Weight | 0.085 kg |
Applications
The TM3DI8 module is used in industrial automation for digital signal acquisition from sensors, push buttons, and limit switches. It is suitable for:
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Small to medium-sized machines
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Modular PLC architectures
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Packaging, material handling, and assembly lines
Advantages
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Compact Size: Saves panel space with slim design.
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Easy Integration: Seamless with Modicon TM3 and TM221/241 PLCs.
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Fast Response: Ensures reliable input signal acquisition.
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Plug-and-Play: Quick wiring with removable spring terminal blocks.
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Cost-Effective: Ideal for budget-conscious automation solutions.
Frequently Asked Questions (FAQ)
Q1: What type of input does the TM3DI8 support?
A1: It supports 24 V DC sink or source type inputs.
Q2: Can I use the TM3DI8 with TM221 PLCs?
A2: Yes, it is fully compatible with TM221 and TM241 controllers.
Q3: Does the module support hot swapping?
A3: No, the module does not support hot swapping. Power must be turned off before replacement.
Q4: How many input channels are available?
A4: The module offers 8 discrete input channels.
Q5: Is it possible to wire PNP and NPN sensors?
A5: Yes, both PNP (source) and NPN (sink) sensors are supported.
Q6: What is the response time of the module?
A6: Typical response time is 3 ms for both ON and OFF transitions.
Q7: Is the module suitable for harsh environments?
A7: It is designed for standard industrial environments with IP20 protection.
Q8: Can I use this module in a distributed architecture?
A8: Yes, it supports distributed I/O when used with Modicon TM3 extension systems.
Q9: How is the module mounted?
A9: It is mounted on a DIN rail for easy installation.
Q10: Is the wiring removable?
A10: Yes, it features removable spring terminal blocks for convenient wiring.
Related or Similar TM3 Series Models
| Model | Description | Channels | Input/Output | Dimensions (mm) | Weight |
|---|---|---|---|---|---|
| TM3DI16 | 16-point Discrete Input Module | 16 | Input | 90 x 84.6 x 27.4 | 0.095 kg |
| TM3DQ8 | 8-point Discrete Output Module | 8 | Output | 90 x 84.6 x 27.4 | 0.090 kg |
| TM3DQ16 | 16-point Discrete Output Module | 16 | Output | 90 x 84.6 x 27.4 | 0.100 kg |
| TM3TI8 | 8-point Thermocouple Input Module | 8 | Input | 90 x 84.6 x 27.4 | 0.120 kg |
| TM3AI8 | 8-point Analog Input Module | 8 | Input | 90 x 84.6 x 27.4 | 0.110 kg |
| TM3AQ4 | 4-point Analog Output Module | 4 | Output | 90 x 84.6 x 27.4 | 0.105 kg |
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|---|---|---|---|---|
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