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Siemens TCP/IP Ethernet Driver Help

Communications Parameters

Descriptions of the parameters are as follows:

l Port Number: This parameter specifies the port number that the remote CP is configured to use. The

default setting for IE TCP/IP is 102 (TSAP). The default setting for NetLink is 1099.

Note:

It is recommended that the default port be used for most applications, where the OPC server and the PLC

exist on the same network. For an application that will be using the Internet through firewalls and

advanced routers, the port number can be changed to allow these operations to occur. In most cases,

however, the PLC will only accept a connection on port 102/1099 and may require router forwarding.

l MPI ID: This parameter is for NetLink only, and is configured for the port in which the NetLink adapter is

connected. It does not apply to models utilizing the IE TCP/IP CPs (such as S7-300 and S7-400). A

maximum of two connections or devices via TCP are possible when using the NetLink adapter.

S7 Communications Parameters

S7-200 Communications Parameters

There are two ways the Siemens TCP/IP Ethernet Driver can communicate to the S7-200 device on an Ethernet

network.

l PG connection (such as, a connection utilized by Micro/WIN). One connection is available.

l Configured connection (such as, a connection configured in Micro/WIN via the Ethernet Wizard). Eight

connections are available.

Note:

Configured connections are recommended because they free the PG port for Micro/WIN and also provide

flexibility to make multiple concurrent connections.

Local TSAP

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