Schneider 170 BDI 356 00 Interbus–S TIO Input Module 170BDI35600 TSX TIO
The 170 BDI 356 00 is a 16-channel, 24V DC discrete (digital) input module designed to interface sensors and switches with a PLC control system using the Interbus-S fieldbus protocol. It acts as a remote I/O station, allowing the central PLC to read the status of field devices from a distance.
Key Features
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Manufacturer: Schneider Electric (under the Telemecanique brand)
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Product Line: Modicon TSX Momentum
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Type: Discrete Input Module (TIO – Terminal I/O Block)
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Technology: 16-Channel, 24V DC Sink/Source
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Fieldbus Protocol: Interbus-S
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Number of Inputs: 16
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Input Voltage: 24V DC (Nominal)
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Electrical Compatibility: Compatible with both Sinking (PNP) and Sourcing (NPN) sensors.
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Mounting: Designed to snap onto a standard DIN rail.
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Status Indicators: Includes LEDs for power, network status, and individual channel status for easy diagnostics.
Detailed Technical Specifications
| Feature | Specification |
|---|---|
| Reference Part Number | 170 BDI 356 00 |
| Product Family | Modicon Momentum / TSX TIO |
| I/O Type | 16 Discrete Inputs |
| Input Voltage | 24 V DC (-15% / +20%) |
| Number of Channels | 16 |
| Input Current | Typically 3-4 mA per point (at 24V) |
| Logic “1” Signal | 15 to 30V DC (ON state) |
| Logic “0” Signal | 0 to 5V DC (OFF state) |
| Compatibility | Sinking (PNP) and Sourcing (NPN) |
| Fieldbus Communication | Interbus-S |
| Isolation | 500 V AC between field side and logic side |
| Status Indicators | – PWR: Power OK (Green) – NS: Network Status (Green/Red) – Ix: Individual Input Status (Green for each of the 16 channels) |
| Connection | Removable screw terminal block |
| Mounting | 35 mm DIN Rail |
Function and Application
The primary function of the 170 BDI 356 00 is to act as a remote digital eyes and ears for a Modicon Momentum PLC.
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Signal Acquisition: It connects to field devices like push buttons, limit switches, proximity sensors, photoelectric sensors, and selector switches.
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Signal Conditioning: It converts the 24V DC field signal from these devices into a low-voltage logic signal that the PLC’s processor can understand.
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Data Transmission: It transmits the status (ON/OFF) of all 16 inputs over the high-speed Interbus-S serial network to the central PLC.
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Diagnostics: The LED indicators provide immediate visual feedback on module health, network communication, and the real-time state of each input, which is crucial for troubleshooting.
System Integration (TSX TIO SEO Context)
In the context of “TSX TIO SEO,” this module is part of a modular I/O system:
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TSX: Refers to the broader Telemecanique PLC series.
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TIO: Stands for Terminal I/O. This is a modular block-based I/O system where you can snap different I/O modules (like the 170 BDI 356 00) next to each other on a DIN rail.
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SEO: This is likely a specific product line designation or a regional catalog code for the TIO system.
The 170 BDI 356 00 module would be connected to a Interbus-S Communication Adapter (e.g., a module like the 170 TIO 350 00), which manages the data exchange between the group of TIO modules and the main Interbus-S network loop.
Common Uses in Industry
This module is typically found in automated industrial environments such as:
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Automotive Manufacturing
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Material Handling Systems
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Packaging Machinery
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Assembly Lines
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Any application requiring reliable collection of multiple digital signals over a centralized bus system.
