Siemens SIMATIC S7-300, CPU 318-2 DP 6ES7318-2AJ00-0AB0

Specification Sheet for Siemens SIMATIC S7-300, CPU 318-2 DP, 6ES7318-2AJ00-0AB0

Basic Information

• Product Model: 6ES7318-2AJ00-0AB0

• Product Series: SIMATIC S7-300

• CPU Type: CPU 318-2 DP

• Application Areas: Chemical, Electronics, Electrical, and other complex industrial automation fields requiring high processing power and communication capabilities

Hardware Characteristics

• Integrated Interfaces:

• First Interface: MPI (Multi-Point Interface) at 12 Mbit/s

• Second Interface: PROFIBUS-DP/MPI for high-speed communication with other PROFIBUS devices and MPI devices

• Power Supply: Built-in 24 V DC, with an acceptable voltage range of 19.2 V to 28.8 V

• Power Protection: External protection is recommended for power supply cables to ensure safe and reliable operation

Memory Configuration

• Work Memory: 512 KB, divided into 256 KB for program code and 256 KB for data memory

• Load Memory: Not specified (typically configured using external memory cards or flash memory modules)

• Retentive Memory: Available for retaining data blocks across power cycles, details may vary depending on configuration

Programming Environment

• Supported Software: STEP 7 V5.5 + SP1 or higher, or compatible versions as specified by Siemens for the CPU 318-2 DP

Processing Capabilities

• High-performance CPU designed for demanding automation tasks

• Fast execution of program instructions, including bit, word, fixed-point, and floating-point arithmetic operations

• Detailed operation times may vary and should be consulted from the latest official documentation

Additional Features

• Program Block Quantities:

• Maximum number of Data Blocks (DBs): Subject to RAM capacity, allowing for extensive data storage and manipulation

• Maximum number of Function Blocks (FBs) and Functions (FCs): Also subject to RAM capacity, enabling complex program structures

• Types and quantities of Organization Blocks (OBs): Including various types for system events, interrupts, and cyclic execution (e.g., OB1, OB10-OB102, OB30-OB38, OB80-OB87, etc.)

• Counters and Timers:

• S7 Counters: Unlimited, with retentivity, limited only by available RAM

• S7 Timers: Unlimited, with retentivity, limited only by available RAM

• PROFIBUS-DP Communication: Supports master and slave operations on the PROFIBUS network, enabling efficient communication with other PROFIBUS devices

Notes

• The above specification sheet is based on publicly available information and may be subject to change due to product updates.

• It is highly recommended to consult the latest official documentation or contact Siemens technical support for the most accurate and up-to-date information before purchase or use of the 6ES7318-2AJ00-0AB0 CPU 318-2 DP.