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Automation I/Os quickly connected with optocouplers

27.11.2008
Siemens's Industry Automation Division has expanded its SIMATIC top connect system cabling to include a compact optocoupler module for facilitating quick switching of high load currents of up to 4 amperes at 24 volts DC.

The new unit is 134 millimeters wide and is a new addition to the SIMATIC top connect module family. These modules enable users to connect I/O components quickly and reliably to SIMATIC S7-300 Controller input/output modules.


One of the big advantages of the optocoupler technology is its high switching frequency of up to 500 hertz - as compared to the mere 5 to 10 switching cycles per minute achieved by conventional relays. The 8-channel optocoupler module adapts the controllers' output signals to the power requirements of the I/O devices.

The eight overload and short-circuit-proof 24 volt outputs are suitable for use with I/O devices with power requirements of up to four amperes. The operating state of each individual channel is indicated by red and green LEDs. The red LED lights up in the event of a wire break or an overload at the output.

The unit also has two group error signaling contacts which are activated in the event of a fault. Four channels are assigned to each signaling contact. The new optocoupler module is available with screw or spring-loaded terminals.

Gerhard Stauss | Siemens Industry Automation
Further information:
http://www.siemens.com/sitop

Further reports about: Automation I/O LED SIMATIC S7-300 Simatic optocoupler technology

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