Siemens 505-6108 8-Channel Analog Input Module

Siemens 505-6108 is an eight-channel analog input module for the TI505 SIMATIC System chassis, designed to extend the TI505 controller's ability to capture analog signals. Each of its eight channels accepts voltage-type signals with per‑channel input ranges of 0 to 5 V DC or ±5 V DC, enabling direct interfacing to sensors and transducers that output low‑voltage DC signals. Part numbers PPX:505-6108-A and PPX:505-6108-B represent the two common variants of this module, which mounts in the TI505 backplane to deliver real‑time analog data to the CPU. This module is used in legacy SIMATIC TI505 installations to expand input capability in compact eight‑channel form factor, typically for monitoring DC process signals or instrumentation channels within automation tasks. The module is commonly documented in Siemens 505 analogue I/O literature and is referenced by distributors as an eight-channel 0-5/±5 V analog input option for TI505.