The ABB TA‑RSW (P/N SAPB) is a rugged, wide-temperature RS‑ serial interface module designed for the AC‑eCo (PMxx) PLC platform. It allows flexible configuration via Automation Builder for communication protocols like Modbus RTU. Engineered for reliable front-panel mounting, it includes spring-cage terminals and is ideal for industrial networking in harsh environments.

Key Features:

Model / Part No.: TA‑RSW – SAPB
Interface: EIA‑RS‑, non‑isolated, supports .–. kbps
Configurable Protocols: Modbus RTU, CAA serial comm, programmable via Automation Builder
Connection: ‑pin spring terminal front-block (. mm pitch) included
Mounting: Front-mount option board on PMxx CPU or COMx slot
Power Consumption: ≈  mA from internal  V DC rail
Temperature Range: Wide-temp version suitable for industrial environments
Weight: Lightweight (~ g)

Applications:

Add-on serial communication (RS‑) for AC‑eCo PLCs
Fieldbus integration in compact control panels
Interfaces for remote I/O, drives, meters, or SCADA via Modbus RTU
Industrial environments requiring robust temperature tolerance

ABB – TA5142-RS485W – RS-485 Serial Adapter Option Board (1SAP187300B0203)