simatic s7-300 - megaelektrik.net
simatic s7-300 - megaelektrik.net
simatic s7-300 - megaelektrik.net
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SIMATIC S7-400<br />
Introduction<br />
SIMATIC S7-400<br />
S7-400<br />
■ Overview<br />
SIMATIC S7-400H<br />
5<br />
• The power PLC for medium to upper performance ranges<br />
• The solution for even the most demanding tasks<br />
• With a comprehensive range of modules and performancegraded<br />
CPUs for optimal adaptation to the automation task<br />
• Flexible in use through simple implementation of distributed<br />
structures; convenient connection method<br />
• Ideal communication and <strong>net</strong>working options<br />
• Convenient system as result of user-friendly handling and<br />
uncomplicated, fan-free configuration<br />
• Can be expanded without prob lems when the tasks increase<br />
• Multicomputing:<br />
Simultaneous operation of a number of CPUs in a single<br />
S7-400 central controller.<br />
Multicomputing segments the overall power of an S7-400.<br />
For example, complex tasks can be divided according to<br />
technology (open-loop control, closed-loop control or<br />
communication) and assigned to different CPUs, thereby<br />
allocating each CPU its own local I/O.<br />
• Modularity:<br />
The high-performance backplane bus on the S7-400 and the<br />
communication interfaces, which can be inserted directly into<br />
the CPU, provide the conditions for numerous communication<br />
lines to function efficiently. This enables a separate communication<br />
line to be set up for HMI and programming tasks, one<br />
for high-performance equidistant motion-control components<br />
and one "standard" I/O fieldbus. Additional connections to<br />
MES/ERP systems or the Inter<strong>net</strong> that might be required can<br />
also be set up.<br />
• Engineering and diagnostics:<br />
In particular in complex automation solutions with an increased<br />
engineering component, the S7-400 can be programmed<br />
and configured very efficiently in conjunction with the SIMATIC<br />
engineering tools. Available features include high-level<br />
languages such as SCL and graphics-based engineering<br />
tools for sequence control systems, state graphs and function<br />
charts.<br />
• Fault-tolerant automation system with redundant configuration<br />
• For applications with high failure safety requirements<br />
Processes with high restart costs, expensive downtimes, little<br />
supervision, and few maintenance options<br />
• Redundant central functions<br />
• Increases availability of I/O: Switched-I/O configuration<br />
• Also possible to use standard -availability I/Os: Single-sided<br />
configuration<br />
• Hot standby: Automatic reaction -free switching to the standby<br />
unit in the event of a fault<br />
• Configuration with 2 separate or one divided central controller<br />
• Connection of switched I/O via redundant PROFIBUS DP<br />
5/2 Siemens ST 70 · 2005
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