Siemens 6ES7 335-7HG01-0AB0 Analog Input Module

Siemens 6ES7 335-7HG01-0AB0 is a high‑speed analog input/output module for the SIMATIC S7‑300 PLC family, delivering four analog inputs and four analog outputs in a single SM 335 module. The I/O is optically isolated, providing robust signal integrity between field devices and the backplane bus, with built‑in diagnostics and interrupt capabilities to assist with fault detection and system reliability. The AI channels offer 14‑bit resolution for precise voltage or current measurements, while the AO channels provide 11‑ to 12‑bit resolution for accurate analog actuation. This module uses a 20‑pin front connector with screw‑type terminals, simplifying field wiring and maintenance. Designed for backplane integration in compact automation cabinets, it supports fast data exchange and real‑time control tasks, making it suitable for applications that require simultaneous high‑speed sensing and precise output control in processes, packaging lines, and machine automation environments.