The 6ES7272-0AA30-0YA1 TD 200 is a text display unit from Siemens, designed for use with the SIMATIC S7-200 series. It features:

Display: 2-line LCD with 20 characters per line (ASCII, Cyrillic, or 10 characters per line for Chinese).

Interface: RS 485 with PPI protocol, supporting up to 126 nodes.

Supply Voltage: 24V DC, powered via the S7-200 communication interface or an optional external power supply.

Protection: IP65-rated front panel for durability.

Dimensions: 148 x 76 x 27 mm (width x height x depth).

Weight: Approximately 250 g.

This unit allows operators to interact with the control program, adjust target values, and set inputs/outputs. It is compact and suitable for industrial environments.