1SAP187300R0202 ABB TA5142-RS485IW AC500, RS485 serial adapter isolated option board, spring/cable front terminal 3.50 mm pitch, Wide temperature

Why Choose the ABB TA5142-RS485IW Serial Adapter Option Board?

The ABB 1SAP187300R0202 TA5142-RS485IW is a compact and highly reliable RS485 serial adapter option board designed for ABB AC500-eCo V3 programmable logic controllers. It provides an isolated RS485 communication interface, enabling secure and dependable serial data exchange between PLCs and industrial devices such as HMIs, instrumentation, remote I/O systems and field communication networks.

As part of the ABB AC500-eCo accessory range, the TA5142-RS485IW offers a cost-effective way to expand communication functionality without requiring larger communication modules. The option board integrates directly with compatible controllers and includes a removable spring terminal connection for simple installation and maintenance.

Featuring an isolated EIA RS485 interface, support for Modbus RTU and programmable serial protocols, and a wide temperature design, the TA5142-RS485IW is ideally suited to demanding industrial automation environments where reliable serial communication is critical.

Key Advantages

• Compact RS485 serial communication expansion board.
• Galvanically isolated RS485 interface for enhanced reliability.
• Supports Modbus RTU and programmable serial communication.
• Wide temperature version for demanding environments.
• Built-in configurable bus termination.
• Spring terminal connection included.
• Designed specifically for ABB AC500-eCo V3 PLCs.

Key Features

• ABB TA5142-RS485IW serial adapter option board.
• RS485 (2-wire half-duplex) serial communication.
• 500 V DC galvanic isolation from the CPU.
• Programmable communication protocols.
• Supports Modbus RTU and CAA SerialCom.
• Integrated configurable bus termination.
• Wide temperature (W) version.
• 5-pin spring terminal connection.
• Compatible with ABB AC500-eCo V3 PLCs.

Technical Specifications

• Manufacturer: ABB
• Series: AC500-eCo V3 Accessories
• Model: TA5142-RS485IW
• Product ID: 1SAP187300R0202
• Product type: Serial adapter option board
• Communication interface: EIA RS485
• Communication mode: 2-wire half-duplex
• Isolation: 500 V DC galvanic isolation
• Transmission rate: 9.6 kbit/s to 115.2 kbit/s
• Protocol support: Modbus RTU, CAA SerialCom, programmable protocols
• Terminal type: 5-pin spring terminal block
• Compatible platform: ABB AC500-eCo V3 PLC
• Power supply: Internal CPU connection
• Additional current consumption: Max. 25 mA
• Weight: approx. 0.016 kg

Reliable RS485 Communication for Industrial Networks

The TA5142-RS485IW enables ABB AC500-eCo V3 controllers to communicate with a wide range of industrial devices using the proven RS485 communication standard. Typical applications include Modbus RTU networks, distributed automation systems, instrumentation interfaces and machine-to-machine communication.

Its isolated communication architecture helps minimise electrical interference while improving network reliability. The integrated bus termination and configurable communication parameters simplify commissioning and system integration for automation engineers.

Typical Applications

• Industrial automation systems.
• Modbus RTU communication networks.
• Remote I/O integration.
• Process control systems.
• Machine automation equipment.
• Industrial instrumentation networks.
• Manufacturing automation projects.

Trusted by Automation Engineers Worldwide

ABB AC500-eCo communication option boards provide dependable industrial networking capabilities, helping engineers integrate serial communication devices and automation systems with confidence and long-term reliability.