Schneider Electric TWDN0Z485D RS-485 Serial Communication Expansion Module

Schneider Electric TWDN0Z485D RS-485 Serial Communication Expansion Module adds a second RS-485 port to Twido modular base controllers, enabling Modbus RTU, ASCII, PC Link, and Remote Link communications with HMIs, drives, meters, and other Modbus‑compatible devices. Designed for factory automation, machine control, packaging equipment, process monitoring, and industrial networking, this 8‑pin Mini‑DIN connector expansion provides a reliable serial interface for PLC communication. Compatible with Twido base controllers, it supports maximum baud rates of 19.2 kbps for PC Link and 38.4 kbps for Remote Link. This is a discontinued legacy module; common replacements include Schneider Electric TWDNOZ485D and TWDNAC485D.