Modular PLC processing with MPI and PROFIBUS-DP communication for verified S7-300 automation configurations.
Siemens 6ES7318-2AJ00-0AB0 is a SIMATIC S7-300 CPU 318-2 DP designed for centralized PLC control and PROFIBUS-DP communication. Siemens documentation identifies an MPI first interface and a galvanically isolated second interface that can operate as a DP master or DP slave, supporting data rates up to 12 Mbit/s. The CPU is used in modular automation systems that require program execution, diagnostics, routing and distributed I/O coordination. For replacement procurement, verify the complete suffix, firmware and hardware versions, memory arrangement, MPI and DP addressing, connector condition and STEP 7 project configuration before installation.
| Product Condition | Original new |
|---|---|
| Availability | In stock |
| Official Lifecycle | No current lifecycle category is stated in the Siemens documents reviewed for this exact order number. |
| Warranty | With 1 year warranty |
| Shipping | Worldwide shipping options available |
Condition, availability and warranty are Stockoems commercial information, not manufacturer commitments.
| Manufacturer | Siemens |
|---|---|
| Complete Part Number | 6ES7318-2AJ00-0AB0 |
| Product Type | SIMATIC S7-300 CPU 318-2 DP |
| Series | SIMATIC S7-300 |
| Supply Voltage | 24 V DC; permissible range 20.4 to 28.8 V DC |
| First Interface | MPI; 19.2 or 187.5 kbit/s; not galvanically isolated |
| Second Interface | PROFIBUS-DP master or DP slave; galvanically isolated; up to 12 Mbit/s |
| DP Master Capacity | Up to 64 DP slaves; maximum 1 KB input and 1 KB output address area |
| Programming | STEP 7 |
| Routing | S7 routing supported |
| Mounting Dimensions | 80 × 125 × 130 mm (W × H × D) |
| Net Weight | Approximately 0.53 kg |
| Country of Origin | GERMANY |
| Control Platform | Modular SIMATIC S7-300 automation systems |
|---|---|
| Distributed I/O | PROFIBUS-DP networks using the integrated DP master or slave interface |
| Typical Applications | Machine control, production-line sequencing, distributed I/O coordination and legacy S7-300 maintenance |
| Replacement Use | Exact-suffix replacement where hardware, firmware and STEP 7 project compatibility have been reviewed |
The Siemens manuals reviewed confirm the exact order number and technical identity but do not state a current lifecycle category. This page therefore does not classify 6ES7318-2AJ00-0AB0 as Active, Classic, Obsolete or Discontinued.
It identifies the Siemens SIMATIC S7-300 CPU 318-2 DP variant covered by the cited Siemens documentation.
The official documents reviewed do not state a current lifecycle category, so no discontinued status is asserted here.
The CPU has an MPI first interface and a galvanically isolated PROFIBUS-DP second interface for master or slave operation.
Review the exact suffix, hardware and firmware versions, supply, MPI and DP settings, connectors, rack position and STEP 7 project.
The reviewed Siemens data describes a standard CPU 318-2 DP; this page makes no redundant-operation claim.
Product, nameplate, connector, packaging and visible-condition photos can be requested for order verification.
Send us the complete part number, required quantity, destination country and product label photos. Our team will check availability, condition, compatibility requirements and shipping options.
Email: sales6@apterpower.com | WhatsApp: +86 18159889985
A documented service route for model validation, inspection, packaging, logistics and after-sales communication.
| Model and suffix verification | We compare the complete part number and every suffix character against the purchase request and available label evidence. |
|---|---|
| Condition confirmation | Visible condition, seals, connectors and supplied accessories are reviewed before order release. |
| Technical compatibility review | Engineering details such as interface, supply, hardware revision and project requirements are checked with the customer. |
| Product and label photo confirmation | Clear product, nameplate, connector and packaging photos can support final identity checks. |
Protective packaging is selected for the product format after visible condition and label checks.
Logistics coordination can include shipment tracking and customs documentation without an unconfirmed delivery promise.
Written warranty terms, return authorization requirements and after-sales response routes are communicated with the order.
Look for exact model verification, readable label evidence, clear condition language, traceable communication, written warranty terms and a defined return authorization process.
Warning signs include incomplete suffixes, reused or unclear photos, unsupported compatibility claims, unexplained substitutions, vague warranty wording and pressure to accept an unverified delivery schedule.
Request nameplate and connector photos, hardware and firmware details when relevant, packaging evidence and written confirmation of the ordered part number.
Send the complete part number, required quantity, destination country and available label photos for service coordination.
Email: sales6@apterpower.com | WhatsApp: +86 18159889985
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Email: sales6@apterpower.com | WhatsApp: +86 18159889985
