This listing is for a USED Siemens SIMATIC digital input module, part number 6ES7131‑6BH01‑0BA0. The module is part of the SIMATIC ET 200SP distributed I/O system and provides 16 digital input channels operating at 24 VDC. It is designed for industrial automation and control applications where reliable signal acquisition from sensors and switches is required.

This listing is for a USED Siemens 6ES7131‑6BH01‑0BA0 SIMATIC S7 digital input module. It is designed for use within Siemens automation systems to receive and process digital input signals. This unit is categorized as a PLC I/O module and includes the following capabilities: 24 VDC inputs, FM‑approved hazardous‑location certification, and wide operating temperature tolerance.

This listing is for a NEW Allen Bradley 1771-IB 8-Point Digital Input Module. It is designed for use in PLC‑5 and 1771 Series chassis and provides eight 10–30V DC sinking input channels. This module is primarily used for monitoring sensors, switches, and DC control circuits within industrial automation systems. As part of the 1771 I/O family, it offers reliable signal conditioning, status indication, and proven performance for legacy system expansions or replacements.