Schneider OTB1CDDM24LP Advantys OTB 24 I/O Expansion Module

OTB1CDDM24LP Schneider Electric Advantys OTB CANopen Distributed I/O Expansion Module

OTB1CDDM24LP is a compact distributed I/O expansion module from the Schneider Electric Advantys OTB series. It adds 24 I/O points to an Advantys OTB CANopen island. The module is not a programmable controller. It works as a bus coupler and distributed I/O slave. It inherits communication from the OTB head NIM. This module is now discontinued. The suggested replacement path is TM3BCEIP plus TM3 distributed I/O.

Why This Module Stands Out

• Fast field wiring: 16 digital inputs and 8 relay outputs in one unit.
• Flexible input design: 24 Vdc sink or source wiring, Type 1 per IEC 61131-2.
• Reliable switching: 8 relay outputs rated at 2 A.
• Simple integration: CANopen slave communication through the OTB head NIM.
• Compact footprint: 90 x 55 x 70 mm and only 0.195 kg.
• Industrial durability: 0 to +55 °C operation and IP20 protection.

Technical Specifications

• Brand: Schneider Electric
• Model: OTB1CDDM24LP
• Series: Advantys OTB
• Device type: Bus coupler / distributed I/O slave
• Module role: Expansion module for an Advantys OTB island
• Digital inputs: 16, 24 Vdc, sink/source, Type 1 per IEC 61131-2
• Digital outputs: 8, relay, 2 A
• Analog inputs: None
• Analog outputs: None
• High-speed counters: Not available
• Pulse outputs: Not available
• Built-in port: 1 x CANopen, SUB-D9
• Protocol: CANopen slave
• Communication expansion: No own NIM; comms come from the OTB head NIM
• Supply voltage: 24 V DC, 20.4 to 26.4 V
• Power consumption: 19 W
• Bus current: 700 mA at 26.2 V, supply circuit
• Operating temperature: 0 to +55 °C
• Storage temperature: -25 to +70 °C
• Relative humidity: 10 to 95%, non-condensing
• Protection rating: IP20
• Dimensions, H x W x D: 90 x 55 x 70 mm
• Weight: 0.195 kg
• Lifecycle: Discontinued
• Replacement: TM3BCEIP plus TM3 distributed I/O
• Last verified: 2026-09

Installation Guide

• Mount the module on a standard DIN rail inside an IP20 cabinet.
• Keep enough space for wiring, cooling, and service access.
• Use 24 V DC power within the 20.4 to 26.4 V range.
• Connect the CANopen SUB-D9 port to the OTB head NIM bus.
• Wire digital inputs for sink or source operation as needed.
• Check relay output load. Do not exceed 2 A per output.
• Separate power and signal cables to reduce electrical noise.
• Confirm proper grounding before power-up.

Commissioning and Maintenance

• Set the CANopen node address and baud rate on the head NIM.
• Verify bus termination at both ends of the CANopen trunk.
• Check input LEDs and output LEDs during first power-up.
• Test each channel with a simple field device before full run.
• Keep terminal screws tight and inspect them at regular intervals.
• Clean the module surface with a dry cloth only.
• Do not open the housing. There are no user-serviceable parts inside.

Compatibility Notes

• Works as an expansion module in an Advantys OTB island.
• Requires an OTB head NIM for CANopen communication.
• Does not run standalone logic or programs.
• Suits systems that already use Schneider Electric Advantys OTB I/O.
• For new designs, review TM3BCEIP and TM3 distributed I/O.
• Confirm pinout, baud rate, and node ID before replacement.

Certifications and Compliance

• Designed for industrial control panels and machinery.
• Inputs follow IEC 61131-2 Type 1 characteristics.
• IP20 rating for clean, protected indoor areas.
• Check local rules for CANopen and machine safety.
• Verify final compliance at the panel and system level.

Expert Review

The OTB1CDDM24LP is a practical choice for older Advantys OTB CANopen islands. It offers a clean mix of 16 inputs and 8 relay outputs. Relay outputs help with lamps, valves, and small contactors. The module is easy to wire and easy to diagnose. Its main limit is clear: it is discontinued. Buyers should confirm stock first. For long-term projects, the TM3BCEIP path makes more sense. For spare parts and quick repairs, this module still earns strong marks.

Manager’s Insight

This module fits plants that already run Schneider Electric Advantys OTB. It cuts downtime when a line needs a fast spare. It also avoids a full I/O redesign. The OTB1CDDM24LP is not for new greenfield systems. It is for maintenance teams, system integrators, and MRO buyers who need a known working part. Check the head NIM, node address, and bus wiring before you order. If you need a forward-looking platform, ask our team about the TM3 replacement set.

Best Applications and Equipment

• Advantys OTB CANopen islands that need more I/O.
• Packaging lines, conveyors, and small assembly cells.
• Panel builders doing retrofit or repair work.
• Lamp, valve, and small contactor control through relay outputs.
• Sensor and switch input banks with 24 Vdc field signals.
• MRO spare parts for discontinued Schneider Electric I/O.

FAQ

• Q: Can this module work without an OTB head NIM?
  No. It needs the head NIM for CANopen communication and island control.
• Q: How many inputs and outputs does it provide?
  It provides 16 digital inputs and 8 relay outputs.
• Q: What is the output rating?
  Each relay output is rated at 2 A.
• Q: Does it have analog channels?
  No. It has no analog inputs or analog outputs.
• Q: Is this a programmable controller?
  No. It is a bus coupler and distributed I/O slave.
• Q: What is the supply voltage range?
  It uses 24 V DC, from 20.4 V to 26.4 V.
• Q: What is the operating temperature range?
  It runs from 0 to +55 °C.
• Q: Is the module discontinued?
  Yes. The suggested replacement is TM3BCEIP plus TM3 distributed I/O.
• Q: Can I use it in a new project?
  It is better for spare parts and existing OTB systems.
• Q: How do I check compatibility?
  Match the head NIM, node ID, baud rate, and CANopen wiring.
• Q: What should I check before buying?
  Confirm stock, connector type, I/O count, and relay load.
• Q: Do you provide buying help?
  Yes. Contact our team for selection and replacement advice.

Buying Guide

• Confirm your existing head NIM supports the needed I/O count.
• Check the CANopen node address plan before you add a module.
• Match the SUB-D9 wiring and bus termination to your network.
• Count digital inputs and relay outputs needed for the machine.
• Review relay load type, current, and switching frequency.
• Choose this discontinued module for spares, not new platforms.
• Ask for the TM3BCEIP replacement path for long-term support.

Packaging and Warranty

• Package list: 1 x OTB1CDDM24LP module.
• Package list: protective packing and basic shipping documents.
• Warranty: 12 months.
• Dispatch time: 12 to 24 hours after order confirmation.
• Courier options: FedEx, UPS, and DHL.
• Tracking number shared after shipment.
• Contact sales@powergearx.com or +86 18030005825 for stock and shipping help.

Contact Information

• Email: sales@powergearx.com
• WhatsApp: +86 18030005825
• Original Source: https://www.powergearx.com/

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