Siemens 6ES7215-1BG31-0XB0 CPU 1215C

Compact CPU with Integrated I/O for Small Automation Systems

The Siemens 6ES7215-1BG31-0XB0 CPU 1215C is a compact central processing unit for the SIMATIC S7-1200 automation system. This CPU combines computing power with integrated digital and analog I/O. It offers a cost-effective solution for small to medium-scale automation tasks. The CPU features a robust design for industrial environments. Furthermore, it offers a wide range of diagnostic functions. This CPU is an ideal choice for space-constrained control cabinets.

Technical Specifications

Parameter	Specification
Manufacturer	Siemens
Product Type	CPU 1215C
Part Number	6ES7215-1BG31-0XB0
System	SIMATIC S7-1200
Working Memory	128 KB
Memory Type	RAM
Load Memory Expansion	FEPROM up to 64 MB; RAM up to 64 MB (with memory card)
Bit Operation Time	0.15 µs
Interfaces	MPI/DP (12 Mbit/s), PROFIBUS DP
Backplane Current Draw (5V)	0.9 A typical; 1.1 A max
Power Loss (typical)	4.5 W
Weight	Approximately 1.28 kg
Dimensions (W x H x D)	25 x 260 x 219 mm
Certification	CE, UL, CSA

Memory Architecture and Processing Power

The Siemens 6ES7215-1BG31-0XB0 provides 128 KB of integrated working memory for program and data handling. It supports extensive load memory expansion via FEPROM or RAM memory cards up to 64 MB. The CPU executes binary operations in just 0.15 µs per instruction. It also supports up to 8192 I/O points, making it suitable for medium to large-scale automation systems.

Communication and System Integration

The Siemens 6ES7215-1BG31-0XB0 provides two integrated communication interfaces for network connectivity. The MPI/DP interface supports 12 Mbit/s data transfer. The second PROFIBUS DP interface connects directly to field devices as a master or slave. The CPU supports isochronous mode on PROFIBUS for precise process synchronization. This robust communication capability ensures seamless integration into existing S7-1200 systems.