Schneider Electric TWDXCAISO Tap Isolation Box

Overview

The Schneider Electric TWDXCAISO is a compact tap isolation box designed for Modicon M258 and Twido programmable logic controllers. It ensures reliable Modbus serial communication by providing isolated connection points, protecting equipment from electrical noise and potential faults. Moreover, the box simplifies system installation and maintenance with its versatile connectivity options and DIN rail mounting support.

Key Features

• Provides isolated tap-off connections for RS485 Modbus networks, improving signal integrity.

• Equipped with a screw terminal block and two RJ45 connectors for flexible wiring.

• Supports pre-polarized RS485 lines (2 × 620 Ω) and line-end adaptation (RC 120 Ω, 1 nF).

• Compact form factor suitable for 35 mm symmetrical DIN rail mounting.

• External 24 VDC power supply ensures consistent operation and electrical isolation.

• Lightweight design (~0.1 kg) reduces space requirements and installation effort.

• RoHS compliant and Green Premium certified for environmentally responsible usage.

Technical Specifications

• Model: TWDXCAISO

• Category: Controller accessory for Modicon M258 / Twido PLCs

• Type: Tap isolation box (Modbus serial link)

• Interface: Serial link (Modbus)

• Connectors: 2 × RJ45 + screw terminal block

• Power Supply: External 24 VDC

• Weight: 0.1 kg

• Mounting Support: 35 mm symmetrical DIN rail

• Compatibility: Twido programmable controllers, Modicon M258 logic controllers

• Application: RS485 line isolation, pre-polarized line support, line-end adaptation

Typical Applications

• Distributed I/O monitoring in industrial automation systems.

• Electrical isolation for RS485 Modbus communication networks.

• OEM machine building requiring reliable PLC network connections.

• Environments needing robust protection against signal interference and voltage spikes.

FAQ

Q: What PLCs are compatible with the TWDXCAISO?
A: The box is compatible with Modicon M258 and Twido programmable logic controllers.

Q: How is the box powered?
A: It requires an external 24 VDC supply for operation.

Q: Can it be mounted on standard DIN rails?
A: Yes, it supports 35 mm symmetrical DIN rail mounting.

Q: What connectors are provided?
A: One screw terminal block and two RJ45 connectors are included for tap-off connections.

Q: What environmental certifications does it have?
A: The product is RoHS compliant and Green Premium certified, supporting sustainable industrial practices.