Industrial EM232 OHB22-0XA0 Digital Input Module

Siemens EM232 OHB22-0XA0 is a two-channel analog output module for the SIMATIC S7-200 family, delivering AQ2 x 12 Bit with two independent 12‑bit digital‑to‑analog converters. It is designed to be powered from a 24 V DC supply and plugs into the S7-200 backplane to provide precise analog control of external devices such as actuators or analog controllers. The OHB22-0XA0 ordering code identifies this 2‑channel, 12‑bit AO module used in 24 V DC operation, commonly referenced in Siemens catalogs as part of the EM232 family. This module enables compact, dual-channel setpoint or control signals derived from the PLC to drive two separate analog outputs, making it suitable for small-scale automation tasks that require simultaneous, independently adjustable analog signals.