Siemens S7-400 Manual de Serviço descarregar pdf (Página 261)

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101

Configuring Connections

Configuring Hardware and Communication Connections with STEP 7

A5E00706939-01

12-9

Note

To execute programming device functions on CPs for the S7-400 through the MPI

or through the integrated DP interface, two connection resources are needed at the

CPU (for two transition points). This requirement must be taken into account in

determining the total number of configured STEP 7 connections.

SEND/RECEIVE Interface

Communication through the SEND/RECEIVE interface takes place only through

CPs. Each connection (i.e. FDL, ISO-transport, ISO-on-TCP, UDP and TCP

connections) takes up one resource at the CP for the end point.

At an S7-300 CPU and a C7-600 CPU, no connection resources are required for

the connection.

(1) Available connection resource

(2) Assigned connection resource

(3) Industrial Ethernet, PROFIBUS

At a S7-400 CPU, no connection resources are required for SEND/RECEIVE

connections (i.e. FDL, ISO-transport, ISO-on-TCP connections.

(1) Available connection resource

(2) Assigned connection resource

(3) Industrial Ethernet, PROFIBUS

Note

To execute programming device functions on CPs for the S7-400 through the MPI

or through the integrated DP interface, two connection resources are needed at the

CPU (for two transition points). This requirement must be taken into account in

determining the total number of configured STEP 7 connections.

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