The 6AG1231-4HF32-4XB0 is the SIPLUS extended-temperature version of the S7-1200 8-channel analog input module. It accepts current (4 to 20 mA, 0 to 20 mA) and voltage (±10 V, ±5 V, ±2.5 V) differential inputs with a common-mode limit of 12 V. Cycle time across all channels is 625 µs. Diagnostics include wire-break detection and configurable alarms per channel. Rated operating range spans -40 °C to 70 °C, compared to the standard 0 °C to 55 °C of the 6ES7231-4HF32-0XB0. This makes it the direct choice for ambient-conditioned panels or outdoor cabinets.
Functional equivalent: 6ES7231-4HF32-0XB0
The standard version 6ES7231-4HF32-0XB0 is electrically and mechanically identical but limited to 0 °C to 55 °C. For a BOM line requiring -40 °C operation or extended life in high-ambient environments, the SIPLUS variant is the qualified part. No other changes in wiring, front connector assignment, or configuration are needed.
Integration notes
This module mounts on an S7-1200 rail and connects via the required front connector (not included). The 8 differential inputs share a common reference; wire-break diagnostics are parameterizable per channel. Supply voltage 24 V DC. Power consumption is 1.5 W typical. Current draw from the backplane is 45 mA.