西门子CPU417-4H 6ES7417-4HT14-0AB0

CPU 417–4H 是用于 SIMATIC S7-400H 和 S7-400 F/FH 的功能强大的 CPU。它允许配置为一个容错的 S7-400H 系统。它可与 F 运行授权一起用于故障安全 S7-400®F/FH 自动化系统。

内置的PROFIBUS-DP接口使它能够作为主站或从站直接连接到PROFIBUS-DP现场总线。

The CPU 417-4H features:

• A powerful processor:
  The CPU achieves command runtimes as little as 18 ns per binary command.
• 30 MB main memory (15 MB for programs, 15 MB for data):
  Load memory for user programs and configuration data for the S7-400H automation system; Fast main memory for subroutines of the user program that are relevant to the process.
• A memory card:
  For expanding the integrated load memory. In addition to the program itself, the information contained in the load memory also includes configuration data for the S7-400H, which is why it takes up twice as much space in the memory. The result is that:
  • The integrated load memory is not sufficient for large programs, which is why the memory card is often required.
    RAM and FEPROM cards are available (FEPROM for saving at zero voltage too).
• Easy expandability:
  Max. 128K digital and 8K analog inputs/outputs.
• Multipoint-capable MPI interface:
  The MPI enables the creation of a simple network with max. 32 nodes and a data transfer rate of 187.5 Kbit/s. The CPU can establish up to 64 connections to users of the communication bus (C bus) and the MPI.
  Note:
  If PROFIBUS DP and MPI interfaces are being used simultaneously, only the following bus connectors can be connected to the MPI interface:
  • With socket: 6ES7 972-0BB41-0XA0
  • Without socket: 6ES7 972-0BA41-0XA0