The 6ES7231-0HC22-0XA0 is a Siemens SIMATIC S7-200 EM 231 analog input module. It features 4 analog inputs (AI) with a 12-bit resolution, supporting DC 0-10V input ranges. This module is only compatible with S7-22X CPUs and has been discontinued since October 1, 2017.

Analog Inputs (AI): 4 (Non-isolated, unipolar)

Resolution: 12-bit A/D converter

Input Ranges: DC 0-10V

Supply Voltage: 24V DC

Power Loss: 2W (typical)

Interference Suppression: 40 dB for 50/60 Hz interference

Net Weight: 0.160 kg

Dimensions: 71.2mm x 80mm x 62mm

Product Lifecycle: Discontinued since October 1, 2017

Compliance: RoHS-compliant since March 31, 2008