OTB1S0DM9LP Schneider Electric Modicon OTB I/O Distributed Module
Manufacturer: Schneider Electric
Product No.: OTB1S0DM9LP
Condition: In stock
Product Type: I/O Distributed Module
Product Origin: FR
Payment: T/T, Western Union
Weight: 500g
Shipping port: Xiamen
Warranty: 12 months
Estimate delivery times: 12-26 days (International), 3-6 days (United States).
Return within 30 days of purchase. Duties & taxes are non-refundable.
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Product Overview
The OTB1S0DM9LP is an advanced Modicon OTB distributed I/O module manufactured by Schneider Electric. Designed for flexible automation islands, this IP20-rated network interface unit integrates non-isolated serial Modbus communication to streamline distributed control architecture across complex machine layouts.
Configuration Blueprint & Technical Specifications
| Engineering Parameter | Technical Value & Specification |
|---|---|
| Brand & Part Number | Schneider Electric | OTB1S0DM9LP (Modicon OTB Series) |
| Module Type | Distributed I/O Network Interface Module with Modbus Serial Link |
| Discrete Inputs | 12 inputs (EN/IEC 61131 Type 1, Sink/Source, 24V DC) |
| Discrete Outputs | 8 total outputs (2 solid-state PNP source outputs, 6 relay outputs) |
| Communication Interface | 2 x RJ45 in parallel, Modbus master/slave, RS485 half-duplex (1.2 to 38.4 kbit/s) |
| High-Speed Functions | 2 counting inputs (32-bit, up to 20 kHz) and 2 pulse generators (RPWM/RPLS up to 7 kHz) |
| Expansion Capacity | Supports up to 7 I/O expansion blocks |
| Operating Environment | 0°C to 55°C operating temperature, IP20 protection rating |
Installation Guide
- Mount the module onto a 35 mm symmetrical DIN rail using integrated clips, or secure directly to a panel using an approved fixing kit.
- Connect the 24 VDC power supply through a fast-blow 2 A fuse (such as ABE7FU200) to protect internal circuitry.
- Link Modbus communication lines using 2 twisted shielded pairs via the dual RJ45 parallel ports in a daisy-chain topology.
- Wire discrete sensors and actuators to the removable screw terminal blocks, ensuring proper common separation for relay outputs.
- Verify status LEDs (PWR, ERR, COM, and individual I/O channels) for correct operational feedback upon startup.
Commissioning and Maintenance Convenience
Removable screw terminal blocks allow technicians to replace wiring blocks without disturbing field connections. Built-in electronic filtering and configurable filter times (0 ms, 3 ms, 12 ms) suppress electrical noise on digital inputs. Independent channel LEDs provide instant visual diagnostics for loop verification during initial cold commissioning.
Application Scenarios and Diagnostic Capabilities
Certification, Packing List, and Warranty Terms
Global PLC Spare HUB's Insight & Field Experience
Our engineering team at Global PLC Spare HUB frequently observes that improper bus termination on long RS485 runs causes intermittent Modbus packet loss. When deploying the OTB1S0DM9LP, always ensure that your daisy-chain segment length stays within the 10-meter limit between drops and that shields are grounded strictly at one end to prevent ground loops.
Selection Guide
Select this distributed module when expanding local I/O islands without upgrading the main controller backplane. Verify that your total current consumption and expansion block count remain within the maximum limit of 7 connected expansion modules.
Frequently Asked Questions (FAQ)
Q: Are the COM terminals on the relay outputs connected together internally on the OTB1S0DM9LP?
A: No, the relay output common terminals are isolated and not connected together internally, requiring external jumpers based on your circuit zoning.
Q: What is the maximum field bus length supported by the integrated Modbus serial link?
A: The total bus length ranges between 0 to 10 meters or up to 15 meters depending on network architecture and baud rate configurations.
Q: Can output points Q0 and Q1 handle inductive DC loads without external suppression?
A: No, outputs Q0 and Q1 are solid-state PNP transistor outputs requiring appropriate flyback diodes or fuses to protect against inductive kickback.
Q: How does the module handle high-frequency pulse generator outputs?
A: The integrated pulse generator supports up to 7 kHz frequencies for specialized positioning and PWM control applications.
Q: What maintenance advantage do removable screw terminals provide during card replacement?
A: They allow technicians to disconnect the entire wiring block instantly without unscrewing individual wire conductors, drastically reducing machine downtime.

Tags
Q: Are these parts 100% original and new?
A: Yes. Every component is guaranteed to be 100% original, brand-new, and factory-sealed. We also provide a 12-month comprehensive warranty for your peace of mind.
Q: How fast is the shipping to my country?
A: For in-stock items, we offer same-day dispatch. International express shipping (DHL/FedEx/UPS) typically delivers within 3–5 business days worldwide.
Q: Can I get a formal quotation with shipping costs?
A: Absolutely. Our sales team is ready to provide a detailed Proforma Invoice (PI) including the most competitive shipping rates for your location.
Q: Do you offer discounts for bulk orders?
A: We provide volume-based pricing for large projects or multiple-item orders. Please contact us to get our Best Price Guarantee.
12-Month Comprehensive Warranty
Every part supplied by Global PLC Spare Hub is covered by a 12-month warranty from the date of invoice.
- Coverage: Functional defects and hardware failures under normal operating conditions.
- Commitment: We provide immediate repair, replacement, or a full refund for any verified defective components to minimize your operational downtime.
Returns & Exchange Policy
We offer a 30-day return policy to ensure you receive the exact part your system requires.
- Eligibility: Returns are accepted for uninstalled items in their original, factory-sealed packaging.
- RMA Process: Please contact our support team to obtain a Return Merchandise Authorization (RMA) number before shipping.
- Fast Processing: Refunds or exchanges are processed within 3–5 business days after the returned item passes our technical inspection.
Need Technical Assistance?Not sure if this part is compatible with your system? [Consult our Engineers] before purchasing to ensure 100% compatibility.



