Siemens SIMATIC S7-300, CPU 312 6ES7312-1AE14-0AB0

Specification Sheet for Siemens SIMATIC S7-300, CPU 312 6ES7312-1AE14-0AB0

Basic Information

• Product Model: 6ES7312-1AE14-0AB0

• Product Series: SIMATIC S7-300

• CPU Type: CPU 312

• Application Areas: Chemical, Electronics, Electrical, and other industrial automation fields

Hardware Characteristics

• Integrated Interfaces: MPI interface

• Power Supply: Built-in 24 V DC, allowing a range of 19.2 V to 28.8 V

• Power Protection: External protection recommended (for power supply cables)

• Storage Media: Requires a MultiMediaCard (MMC)

Memory Configuration

• Working Memory: 32 KByte

• Load Memory (MMC): Maximum 8 MByte

• Retentive Memory: For retentive data blocks, size is 32 KByte

Programming Environment

• Supported Software: STEP 7 V5.5 + SP1 or higher, or STEP 7 V5.2 + SP1 or higher (with HSP 218)

Processing Capabilities

• Bit Operation Time: Approximately 0.1 µs

• Word Operation Time: Approximately 0.24 µs

• Fixed-Point Arithmetic Operation Time: Approximately 0.32 µs

• Floating-Point Arithmetic Operation Time: Approximately 1.1 µs

Additional Features

• Program Block Quantities:

• Maximum number of Data Blocks (DBs): 1024

• Maximum number of Function Blocks (FBs) and Functions (FCs): 1024 (each with a maximum size of 32 KByte)

• Types and quantities of Organization Blocks (OBs): Including OB1, OB10, OB20/21, OB32/33/34/35, OB40, OB100, OB80/82/85/87, OB121/122, etc.

• Counters and Timers:

• S7 Counters: Unlimited (limited only by RAM capacity), with retentivity

• S7 Timers: Unlimited (limited only by RAM capacity), with retentivity