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Siemens SIMATIC S7-300 CPU 318-2 DP 6ES7318-2AJ00-0AB0
Manufacturer: Siemens
Condition: Brand New
Lead Time: In Stock
Origin: Germany
Warranty: 12 Months
Email: [email protected]
whatsApp: +86-18150117685
- Overview
- Product Overview
- Key Functions
- Official Specifications
- Frequently Asked Questions
- Compatibility & Ordering Notes
- Hot Selling Models
- Recommended Products
Overview
SIEMENS • SIMATIC S7-300
6ES7318-2AJ00-0AB0 SIMATIC S7-300 CPU 318-2 DP
The CPU 318-2 DP is a SIMATIC S7-300 central processing unit with a configurable MPI/DP interface and a second dedicated PROFIBUS DP interface for controller, programming-device and distributed-I/O communication.
At a Glance
| Brand | Siemens |
|---|---|
| Model | 6ES7318-2AJ00-0AB0 |
| Product Type | Programmable controller CPU |
| Core Function | Executes high-performance PLC logic and coordinates PROFIBUS DP I/O |
| Application or Compatible Series | SIMATIC S7-300 automation systems |
Exact Identification
Match 6ES7318-2AJ00-0AB0 character by character and confirm the complete SIMATIC S7-300 CPU 318-2 DP designation.
Interface Arrangement
Confirm the installed supply, ports, field connections and required accessories before wiring the replacement.
Configuration Check
Preserve the approved engineering project, network parameters and application data used by the installed system.
Product Overview
The CPU 318-2 DP is a SIMATIC S7-300 central processing unit with a configurable MPI/DP interface and a second dedicated PROFIBUS DP interface for controller, programming-device and distributed-I/O communication.
The controller combines a configurable MPI/DP connection with a second PROFIBUS DP interface, both supporting transmission rates up to 12 Mbit/s. The PROFIBUS DP configuration provides an 8,192-byte address area for inputs and an equal 8,192-byte area for outputs. The CPU supports removable RAM and FEPROM memory cards in the capacities documented for this processor generation.
Key Functions
Dual Bus Connectivity
The controller combines a configurable MPI/DP connection with a second PROFIBUS DP interface, both supporting transmission rates up to 12 Mbit/s.
Large Distributed-I/O Address Space
The PROFIBUS DP configuration provides an 8,192-byte address area for inputs and an equal 8,192-byte area for outputs.
Flexible Load-Memory Options
The CPU supports removable RAM and FEPROM memory cards in the capacities documented for this processor generation.
Official Specifications
| CPU Designation | CPU 318-2 DP |
|---|---|
| First Communication Interface | MPI/DP, configurable for MPI or PROFIBUS DP operation |
| Second Communication Interface | Dedicated PROFIBUS DP |
| Default MPI Transmission Rate | 187.5 kbit/s |
| Maximum MPI/DP Transmission Rate | 12 Mbit/s |
| Maximum PROFIBUS DP Transmission Rate | 12 Mbit/s |
| DP Input Address Area | 8,192 bytes |
| DP Output Address Area | 8,192 bytes |
| Default I/O Process Image | Bytes 0 to 255 |
| Configurable I/O Process Image | Up to byte 2,047 |
| PROFIBUS Engineering Baseline | COM PROFIBUS V5.0 or later |
| Supported RAM Memory Cards | 128 KB, 256 KB, 512 KB, 1 MB or 2 MB |
| Supported FEPROM Memory Cards | 16 KB through 4 MB in the documented S7-300 range |
| PROFIBUS Operating Roles | DP master, DP slave and direct data exchange |
| DPV1 Record and Alarm Functions | SFB 52 RDREC and SFB 54 RALRM supported |
| Operating-System Backup to Memory Card | Not supported for this CPU |
Frequently Asked Questions
Can 6ES7318-2AJ00-0AB0 use its first port as PROFIBUS DP instead of MPI?
The first interface can be reconfigured from MPI to PROFIBUS DP operation.
What is the maximum PROFIBUS speed for 6ES7318-2AJ00-0AB0?
Both bus interfaces support transmission rates up to 12 Mbit/s.
How much distributed I/O addressing is available on 6ES7318-2AJ00-0AB0?
The DP configuration provides 8,192 bytes for inputs and 8,192 bytes for outputs.
Which engineering baseline is specified for 6ES7318-2AJ00-0AB0 on PROFIBUS?
The documented commissioning baseline is COM PROFIBUS V5.0 or later.
Can 6ES7318-2AJ00-0AB0 operate as a DP slave?
The PROFIBUS interface supports master, slave and direct-data-exchange operation.
Which RAM memory-card sizes can be used with 6ES7318-2AJ00-0AB0?
Supported RAM card capacities range from 128 KB to 2 MB.
Can the operating system of 6ES7318-2AJ00-0AB0 be backed up to a memory card?
This processor is excluded from the operating-system backup-to-card function.
Compatibility & Ordering Notes
Compatibility Checklist
- Preserve the STEP 7 hardware configuration and both bus parameter sets before replacement.
- Match the installed RAM or FEPROM memory-card type and capacity.
- Restore the original MPI/DP mode, PROFIBUS addresses and DP master or slave relationships.
