And for S7-300 configuration we'll use Step7 Professional V5.5 SP4. Generally saying you can couple up to four IO Controllers (CPUs) via PN/PN Coupler with Firmware V4.0.įor S7-1200 configuration, we will use TIA Portal Step7 Basic V14 SP1 software. In this hands-on article, I will walk you through the steps of how to setup a data exchange between two CPUs via new modern version of PN/PN coupler 6ES7158-3AD10-0XA0 with Firmware V4.0.īetween IO controllers (our CPUs) you can exchange up to 1440 bytes for input data and up to 1440 bytes for output data, including user data and user data quality markers. More information about it you can find on its Siemens Mall’s product page: The PN/PN Coupler is a device with two PROFINET interfaces, which helps to interconnect two different PROFINET subnets. Suppose you have two Simatic S7 PLCs, like a S7-1200 and S7-300, on different Ethernet subnets and you need to exchange some data between them.Īn extremely easy way to do this is to use a PN/PN coupler device. Easy data exchange between two Siemens Simatic S7 PLCs on different Ethernet subnets using a PN/PN Coupler
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