Professionals in Human Machine Interface

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Pass-Through’s monitoringfunctions in Siemens PLC

HMIPC Siemens S7-200 (PPI)Siemens S7-300 (MPI)

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■ Benefits● The Siemens Step7 software can use the Pass-Through to maintain the PLC application and link the PLC to the HMI.● When the Pass-Through communication system is in operation, the HMI continuously monitors the PLC without interruption.● Not only does the Pass-Through support the PLC application in its capacity to upload and download between the PC and the PLC, it also modifies and verifies the application’s accuracy● The Pass-Through’s functions and configuration are easy to execute.● Reduces the costs of buying additional devices to support the Pass-Through function.

When using the operating setup of PC-HMI-PLC, the WEINTEK Pass-Through function enables those PLC programming applications running on your PC to directly connect to the PLC via HMI for uploading, downloading, data monitoring, and more. The Pass-Through function now supports the Siemens S7-300 MPI and S7-200 PPI communication protocols. The S7-200 PPI protocol includes the Ethernet Communication mode and the S7-300 MPI provides the Ethernet Communication and Virtual COM modes.The newest EasyBuilder Pro supports all versions of the Siemens PLC series, directly monitors the device status of the Siemens PLC, and efficiently maintains the PLC application through HMI.

■ WENITEK Pass-Through function

■ Others Pass-Through function

■ Disadvantages● Increases the cost of buying an extra supporting device● Complicated configuration

▲ Two Pass-Through modes：Virtual COM / Ethernet

▲ Connects to a device which supports

the Pass-Through function

Siemens S7-200 (PPI)Siemens S7-300 (MPI)

Other HMIsPC

Step7 Software

Step7 Software