Implementing 3-Switch XOR Ladder Logic with Internal Bit
Implement a 3-SPST switch XOR light circuit in LogixPro or RSLogix 500 using an internal relay bit. Includes truth tables, boolean equations, and verified.
Designed to expand the discrete I/O capabilities of Modicon M221, M241, and M251 logic controllers, the Schneider Electric TM3DI8 digital input module offers a compact and reliable solution for industrial automation setups. This expansion module provides 8 discrete input channels operating at a nominal 24 V DC with a low current draw of 7 mA per channel, ensuring optimal signal detection and energy efficiency in demanding industrial environments.
The TM3DI8 features sink or source (positive/negative) input logic capabilities, providing system integrators with the flexibility to interface with a wide variety of field sensors and switches. Part of the Modicon TM3 expansion bus system, it easily mounts alongside main controller units, establishing fast bus communication through a lateral bus connector and significantly reducing installation time and cabinet footprint.
| Manufacturer | Schneider Electric |
| Model / Part Number | TM3DI8 |
| Product Range | Modicon TM3 |
| Module Type | Discrete Input Module |
| Number of Inputs | 8 |
| Discrete Input Voltage | 24 V DC |
| Discrete Input Current | 7 mA |
| Input Logic | Sink or Source (Positive/Negative) |
| Voltage State 1 Guaranteed | At least 15 V for inputs |
| Current State 1 Guaranteed | At least 2.5 mA |
| Voltage State 0 Guaranteed | Max 5 V for inputs |
| Current State 0 Guaranteed | Max 1 mA |
| Response Time | 4 ms (turn-on/turn-off) |
| Operating Temperature | -10 to 55 Celsius (horizontal installation) |
| Storage Temperature | -25 to 70 Celsius |
| Packaged Weight | 0.22 kg |
| Packaged Dimensions | 12.68 x 10.66 x 7.65 cm |
| Commodity Code | 85371091 |
| Terminal Connection | Function Assignment |
|---|---|
| COM | Common reference terminal for input channels |
| I0 to I7 | Discrete input channels (0 through 7) |
| Bus Connector | Lateral expansion bus connector for controller linking |
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Designed to expand the discrete I/O capabilities of Modicon M221, M241, and M251 logic controllers, the Schneider Electric TM3DI8 digital input module offers a compact and reliable solution for industrial automation setups. This expansion module provides 8 discrete input channels operating at a nominal 24 V DC with a low current draw of 7 mA per channel, ensuring optimal signal detection and energy efficiency in demanding industrial environments.
The TM3DI8 features sink or source (positive/negative) input logic capabilities, providing system integrators with the flexibility to interface with a wide variety of field sensors and switches. Part of the Modicon TM3 expansion bus system, it easily mounts alongside main controller units, establishing fast bus communication through a lateral bus connector and significantly reducing installation time and cabinet footprint.
| Manufacturer | Schneider Electric |
| Model / Part Number | TM3DI8 |
| Product Range | Modicon TM3 |
| Module Type | Discrete Input Module |
| Number of Inputs | 8 |
| Discrete Input Voltage | 24 V DC |
| Discrete Input Current | 7 mA |
| Input Logic | Sink or Source (Positive/Negative) |
| Voltage State 1 Guaranteed | At least 15 V for inputs |
| Current State 1 Guaranteed | At least 2.5 mA |
| Voltage State 0 Guaranteed | Max 5 V for inputs |
| Current State 0 Guaranteed | Max 1 mA |
| Response Time | 4 ms (turn-on/turn-off) |
| Operating Temperature | -10 to 55 Celsius (horizontal installation) |
| Storage Temperature | -25 to 70 Celsius |
| Packaged Weight | 0.22 kg |
| Packaged Dimensions | 12.68 x 10.66 x 7.65 cm |
| Commodity Code | 85371091 |
| Terminal Connection | Function Assignment |
|---|---|
| COM | Common reference terminal for input channels |
| I0 to I7 | Discrete input channels (0 through 7) |
| Bus Connector | Lateral expansion bus connector for controller linking |
Global Express Shipping
Returns & Warranty
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| Country of origin |
France
|