Siemens 6ES7216-2BF21-0XB0 Compact Unit for S7-200

The Siemens 6ES7216-2BF21-0XB0 compact unit integrates a CPU, power supply, and I/O in a single housing for small automation tasks. This unit belongs to the SIMATIC S7-200 PLC family and suits applications with limited space requirements. It delivers powerful control capabilities without requiring additional expansion modules for basic operations. The module includes both digital inputs and outputs for direct connection to field devices.

Technical Specifications

The Siemens 6ES7216-2BF21-0XB0 compact unit features 24 digital inputs and 16 digital outputs for controlling equipment. It includes a work memory of 16 KB for user programs and data storage. The unit handles up to 128 timers and 128 counters for sequencing and counting tasks. It operates on a 24 V DC supply voltage and consumes approximately 11 W of power. The module provides 2 analog potentiometers for local setpoint adjustments.

Integration and Application

The Siemens 6ES7216-2BF21-0XB0 compact unit mounts easily on a DIN rail within a control cabinet. It supports expansion with up to 7 additional modules for extended functionality. This unit communicates with programming devices through the built-in PPI interface. You can deploy this compact unit for small conveyor systems, packaging machinery, and simple process control applications.