Specifications:

• General Features:
• CPU Type: SIMATIC S7-400H CPU 412-3H.
• Firmware Version: V4.5.
• Engineering Software: STEP 7 V5.3 SP2 or higher (with HW update).
• Isochronous Mode: Not supported.
• CiR Synchronization Time:
• Basic load: 150 ms.
• Per I/O byte: 40 µs.
• Electrical Characteristics:
• Power Supply: Via system power supply.
• Backplane Bus Consumption:
• 5 V DC: typ. 1.2 A / max. 1.5 A.
• 24 V DC: max. 150 mA (per DP interface).
• Interface Consumption: 5 V DC, max. 90 mA (per DP interface).
• Power Loss: ~5.5 W.
• Memory & Backup:
• Integrated RAM:
• Total: 768 KB.
• Program: 512 KB.
• Data: 256 KB.
• Expandable Memory:
• FEPROM: up to 64 MB.
• RAM: up to 64 MB.
• Backup:
• Battery-backed (yes).
• External voltage support: 5–15 V DC.
• Backup current: typ. 190 µA / max. 660 µA.
• Processing Times:
• Bit/Word/Fixed Point: 0.075 µs.
• Floating Point: 0.225 µs.
• Program Blocks:
• DBs: 4,095 max, 64 KB each.
• FBs/FCs: 2,048 max, 64 KB each.
• OBs:
• Time/Delay/Cyclic/Process Alarm OBs: 4 each.
• Nesting depth: 24 per priority class.
• Timers & Counters:
• S7 Counters/Timers: 2,048 each.
• IEC Types: Supported via SFB.
• Time Range: 10 ms to 9,990 s.
• Retentivity: Adjustable.
• Data & Addressing:
• Flag Memory: 8 KB.
• Local Data: Up to 16 KB.
• I/O Address Space:
• Inputs/Outputs: 8 KB each.
• Consistent data access: Supported.
• Subprocess Images: Up to 15.
• Interfaces:
• Interface 1: MPI/PROFIBUS DP (RS485, isolated).
• Max DP devices: 32.
• Transmission rate: 12 Mbit/s.
• Protocols: MPI, DP Master.
• S7 Communication: Supported.
• DP Slave: Not supported.
• Interfaces 2 & 3: Fiber-optic sync modules (IF 960).
• Used for redundancy synchronization.
• Expansion & Modules:
• Expansion Units: Up to 21.
• Interface Modules (IM):
• IM 460: Up to 6.
• IM 463: Up to 4 (single mode only).
• DP Masters via CP: Up to 10.
• Connectable OPs:
• 15 (without message processing).
• 8 (with message processing).
• Required Slots: 2.
• Environmental & Clock:
• Real-Time Clock: Retentive and synchronically.
• Deviation:
• Buffered: max. 1.7 s/day.
• Unbuffered: max. 8.6 s/day.
• Operating Hours Counter: 8 counters, 0–32,767 h.
• Dimensions & Weight:
• Width: 50 mm.
• Height: 290 mm.
• Depth: 219 mm.
• Weight: ~990 g.
• Approvals & Compliance:
• CE, UKCA, UL, ATEX, IECEx, RCM, KC.
• Marine: DNV, PRS, RINA, RMRS, CCS, BV.
• Functional Safety: Supported.
• Programming Languages: LAD, FBD, STL, SCL, CFC, GRAPH, HiGraph®.
• Know-how Protection: Password + Block Encryption.