SIMATIC S7-400PLC
Rack-based high-end controller for large plants and process automation; available as standard, fail-safe (F) and fault-tolerant redundant H systems with synchronization modules. Configured in STEP 7 V5.x / PCS 7, communicates via PROFIBUS DP, PROFINET and Industrial Ethernet CPs.
- Manufacturer
- Siemens
- Product line
- SIMATIC
- Device type
- PLC
- Communication
- PROFIBUSPROFINETEthernet and IP networking
- Engineering software
- SIMATIC STEP 7 V5.x
- Models / series
- CPU 412, CPU 414, CPU 416, CPU 417, CPU 412-5H, CPU 414-5H, CPU 417-5H, CPU 410-5H
Documentation · 9
S7-CPs for Industrial Ethernet Configuring and Commissioning Manual Part A
General part for S7-300/400 Ethernet CPs: connection types, NetPro configuration, FETCH/WRITE, diagnostics with NCM S7.
Link verified 2026-10-02
Modbus/TCP via the integrated PN interface of the S7-300/400 CPU
Licensed Modbus/TCP blocks (MODBUSPN) for client/server communication over the PROFINET interface of S7-300/400 CPUs: parameters, data areas, error codes.
Link verified 2026-10-02
Automation System S7-400 Configuration and Use
System manual on CPU 41x functions, configuration in STEP 7, communication and operating modes.
Link verified 2026-10-02
S7-400 Automation System, CPU Specifications
Operating elements, memory concept, communication, PROFIBUS/PROFINET interfaces, cycle and response times and technical data of S7-400 CPUs.
Link verified 2026-10-02
Automation System S7-400 Hardware and Installation
Rack configuration, power supply, grounding, wiring, networking and commissioning of S7-400 stations.
Link verified 2026-10-02
S7-400 Automation System Module Data
Technical data, wiring and diagnostics of S7-400 racks, power supplies, digital/analogue and interface modules.
Link verified 2026-10-02
Fault-tolerant systems CPU S7-400H (V6.0)
Redundancy principles, synchronization modules, switched I/O, link-up and update, failure and replacement procedures of S7-400H systems.
Link verified 2026-10-02
System Software for S7-300/400 System and Standard Functions
Reference of organization blocks, system functions (SFC/SFB), diagnostic data records and the system status list (SZL) for S7-300/400 programs.
Link verified 2026-10-02
SIMATIC Programming with STEP 7 V5.5
SIMATIC Manager projects, hardware configuration (HW Config), symbol tables, blocks, LAD/FBD/STL programming, download and testing for S7-300/400.
Link verified 2026-10-02
Diagnostics · 0
No reviewed diagnostic records for this family yet.