Siemens 6ES74002JA000AA0

Technical Parameters

Multi-Core Processing Architecture

Integrates dual RISC processors with 25 ns instruction cycle time for parallel task execution (OB/FC/FB prioritization).

Non-Volatile Work Memory

1.4 MB RAM + 4 MB load memory (flash-backed) with error-correcting code (ECC) for fault-tolerant data retention.

Deterministic Bus Cycle

Guarantees ≤1 ms process image update time for up to 16,000 digital I/O points in distributed configurations.

Integrated PROFIBUS-DP Master

Supports 12 Mbps PROFIBUS DP-V1 with SYNC/FREEZE commands and slave redundancy via S7-400H systems.

Fault-Tolerant Data Logging

Stores 512 KB of process data with timestamp (1 ms resolution) during power failure using supercapacitor backup.

Safety-Critical Operation

Complies with SIL 3 (IEC 61508) and PL e (ISO 13849-1) for safety-related automation tasks.

Key Features

The Siemens 6ES74002JA000AA0 offers modular flexibility and seamless integration for S7-400 PLC systems.

Dual-Slot Capacity: Available in UR1 (18 slots) and UR2 (9 slots) configurations, the Siemens 6ES74002JA000AA0 accommodates power modules (PS), CPUs, and interface modules (IM) for centralized or distributed setups.

Backplane Bus Integration: Equipped with plug-in connectors and a high-speed backplane, it ensures rapid data exchange between modules, critical for real-time control in applications like steel mills or chemical plants.

Scalable Expansion: Supports up to 21 expansion units via interface modules, enabling centralized extensions (5m) or distributed configurations (600m) for large-scale automation projects.

Robust Mechanical Design: Features aluminum alloy construction with DIN rail compatibility and protective conductor terminals, ensuring durability in vibration-prone environments.

Compatible Equipment

The Siemens 6ES74002JA000AA0 serves as the backbone for Siemens S7-400 PLC systems, integrating with:

Power Modules: Pair with PS407 (6ES7407-0DA02-0AA0) to deliver stable 24V DC power, essential for uninterrupted operations in high-load scenarios.

Interface Modules: Use IM460-1 (6ES7460-1AA00-0AA0) for centralized extensions or IM467 (6ES7467-5GJ00-0AB0) for distributed PROFIBUS connections.

High-Availability Controllers: Compatible with S7-400H redundancy CPUs (e.g., 6ES7412-5HK06-0AB0), ideal for fault-tolerant systems in power generation or oil refineries.

Application Scenarios

The Siemens 6ES74002JA000AA0 powers mission-critical automation across industries:

Steel Manufacturing: Supports multi-zone temperature control and hydraulic press synchronization in rolling mills, ensuring precision in high-speed production lines.

Water Treatment Plants: Facilitates centralized control of pumps, valves, and sensors, enabling real-time monitoring of flow rates and chemical dosing.

Automotive Assembly: Integrates with robotic arms and conveyor systems, coordinating tasks like welding and quality inspection in decentralized networks.

Pharmaceutical Production: Provides a scalable platform for cleanroom environmental monitoring, aligning with GMP compliance.