| Product Type | S7-300 Digital Extension |
| Product Model | 6ES7321-1BH02-0AA0 |
| Input Current | Current consumption, maximum value 75 mA; no load |
| Product Dimensions | 35 MM × 147 MM × 129 MM |
| Power Supply Voltage | Rated value (DC) 24 V Allowable range, lower limit (DC) 19.2 V Allowable range, upper limit (DC) 28.8 V Reverse polarity protection is |
| Weight | 250 g |
Universal AS-i Master Module for S7-1500 Series: Model CM AS-i 32x24V/2A, a communication module for the SIMATIC S7-1500 PLC system—enables integration of AS-Interface (AS-i) networks for cost-effective and efficient connection of numerous simple field devices such as sensors and actuators.
Built-in Web Server: Enables access to an embedded web interface via standard browser for real-time monitoring of AS-i network status, slave information, and diagnostic logs—facilitating remote maintenance.
Flexible Installation & Configuration: Mounts directly on the S7-1500 backplane bus to the right of the CPU. Communicates seamlessly with the CPU via the standard interface—easy to configure and expand.
Reduced Wiring & Cost Savings: AS-i uses a 2-wire system (power + communication combined), significantly reducing traditional I/O wiring effort—ideal for distributed sensor/actuator applications.
Industrial-Grade Reliability: Operates reliably from -25°C to +60°C, compliant with industrial EMC, vibration, and noise immunity standards—suitable for demanding industrial environments.
