Siemens | 6ES7414-4HM14-0AB0 | SIMATIC S7-400H CPU

Overview

The Siemens 6ES7414-4HM14-0AB0 is a high-performance CPU for the SIMATIC S7-400H and S7-400F/FH series. It features 2.8 MB of integrated memory (1.4 MB for data and program storage) and supports multiple communication interfaces, including MPI/DP and synchronization modules, for real-time processing in industrial automation systems.

Electrical Specifications

• Supply Voltage: Powered by system power supply (DC)
• Input Current:
  • From backplane bus 5 V DC:
    • Typ. 1.4 A
    • Max. 1.7 A
  • From backplane bus 24 V DC: Max. 150 mA
  • Per DP interface: Max. 90 mA
• Power Loss: Typ. 6 W

Memory & Backup

• RAM Memory:
  • Integrated: 2.8 MB (1.4 MB for data, 1.4 MB for program)
  • Expandable: No
• Load Memory:
  • Expandable FEPROM: Max. 64 MB
  • Expandable RAM: Max. 64 MB
  • Integrated RAM: Max. 256 kB
• Backup:
  • Battery: Yes, all data
  • Backup Current:
    • Typ. 190 µA (up to 40°C)
    • Max. 660 µA

CPU Performance

• Processing Times:
  • Bit operations: 0.045 µs
  • Word operations: 0.045 µs
  • Fixed-point arithmetic: 0.045 µs
  • Floating-point arithmetic: 0.135 µs
• CPU Blocks:
  • Max. Number: 4,095 DB, 2,048 FB, 2,048 FC
  • Max. Size: 64 kB each
• Nesting Depth:
  • Per priority class: 24
  • Within error OB: 1

Communication Protocols

• SIMATIC Communication:
  • S7 routing: Yes
• Communication Functions:
  • PG/OP Communication: Yes
  • Number of Connectable OPs (without message processing): 31
  • Number of Connectable OPs (with message processing): 8
  • Process Control Messages: Yes

Alarm & Message Functions

• Program Alarms: Yes
• Max. Simultaneously Active Alarm-S Blocks: 100
• Alarm 8-Blocks: Yes
• Max. Instances for Alarm and Communication Blocks: 1,200

Dimensions & Weight

• Width: 50 mm
• Height: 290 mm
• Depth: 219 mm
• Weight: Approx. 995 g