Two channels of switched DC output for S7-1200 system expansion
The Siemens 6AG1132-4BB01-2AB0 is a SIPLUS 2-channel digital output module, delivering 0.5 A per channel from a 24 V DC backplane supply with transistor switching. Each output is short-circuit protected and can detect wire-breaks independently, with diagnostics readable via the backplane. The module covers the wide ambient range of -25 °C to 60 °C, making it suitable for unheated enclosures or high-temperature cabinet environments.
Diagnostic and response characteristics for fast fault isolation
Switching times are 100 µs from 0 to 1 and 400 µs from 1 to 0, sufficient for most solenoid and indicator loads. Resistive load switching reaches 100 Hz; inductive loads at 2 Hz keep flyback stress within design limits. When the CPU stops, the module can either substitute a defined value or hold the last output state — no external safety relay needed for simple fail-safe comms. Reverse voltage and reverse polarity protection are built in when the load voltage matches the power module supply.
Active production and sourcing posture
The 15 mm width saves panel space in multi-module racks, and the -25 °C lower limit supports cold storage applications without derating.