Siemens 6ES7422-1BL00-0AA0 Digital Output Module

Siemens 6ES7 422-1BL00-0AA0 SM422 signal module for SIMATIC S7-400 is an eight-channel analog input module designed to interface with S7-400 PLCs in production lines, process control systems, and complex machine automation setups. It supports input signals of 0–10 V or 4–20 mA (model dependent) with 12–16 bit resolution (model dependent) and communicates via the backplane bus for S7-400. Mounting options include rack mount or a DIN rail adapter, and it operates from a typical 5 V DC logic supply with an ambient temperature range of 0°C to +60°C and IP20 protection. Diagnostic LED indicators provide channel and module status. Common replacements include Siemens 6ES7 422-1BL01-0AA0, Siemens 6ES7 422-1BL02-0AA0, and Allen-Bradley 1756-IF8.