Siemens SIMATIC S7 6ES7 138-4DF01-0AB0 ET200S Serial Interface Module RS232/RS42

For sale is a Siemens SIMATIC S7 6ES7 138-4DF01-0AB0 ET200S Serial Interface Module in used, good working condition. This module was designed to add reliable serial communication capabilities to ET 200S distributed I/O racks, supporting 1 SI (serial interface) in both RS232 and RS422/RS485 formats with ASCII and 3964R protocols.

Key Features:

• Brand: Siemens

• Model: 6ES7 138-4DF01-0AB0

• Series: SIMATIC S7 ET200S

• Type: Serial Interface Module (1 SI, RS232/RS422/RS485, 3964R/ASCII)

• Supply Voltage: 24 V DC

• Protocols Supported: ASCII, 3964(R)

• Supported Interfaces: RS232 (V.24), RS422/485 (X.27)

• Max Transmission Speed: Up to 115.2 kbit/s (ASCII protocol)

• Cable Length (max): RS232 - 15 m, RS422/RS485 - 1200 m

• Dimensions: 15 x 81 x 52 mm

• Diagnostics: LEDs for Rx (Receive), Tx (Transmit), and SF (group fault)

• Certifications: CE, UL, FM, ATEX (KEMA 01 ATEX 1238X)

• Operating Temp: 0°C to +60°C

• Condition: Used, fully tested