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Siemens TCP/IP Ethernet Driver Help

Link Type TSAP Value (hex)

PG 4B57 ('KW')

Configured A remote (client) TSAP configured in Micro/WIN's Ethernet wizard.

If Micro/WIN remote TSAP=xx.yy*, set local TSAP to xxyy.

Remote TSAP

Link Type TSAP Value (hex)

PG 4B57 ('KW')

Configured A local (server) TSAP configured in Micro/WIN's Ethernet wizard.

If Micro/WIN remote TSAP=xx.yy*, set local TSAP to xxyy.

*TSAP as displayed in Micro/WIN's Ethernet Wizard. When accessed from V memory, the value may be in decimal

form. For example, if TSAP is 10.00, the V memory value will be 1000 hex or 4096 decimal. The values entered

for Local TSAP must be in hexadecimal notation; in this example, the value 1000 would be entered.

General Rule From the Perspective of the OPC Server

Local TSAP==Micro/WIN remote TSAP

Remote TSAP==Micro/WIN local TSAP

For information on using the CP243-1 module, refer to How to Configure S7-200 Connections in

Micro/WIN.

S7-300/400/1200/1500 Communications Parameters

This setting does not apply to models utilizing the NetLink adapter (NetLink: S7-300 and NetLink: S7-400).

Link Settings

The communication link refers to the connection between the Siemens TCP/IP Ethernet Driver and the CP.

Type

The type of link chosen determines the number of simultaneous requests allowed. The greater the number of

simultaneous requests, the greater the data throughput. Each device connection is allowed one outstanding

request. To achieve multiple simultaneous requests, multiple connections must be configured. This is achieved

by defining the device multiple times in the OPC server (identical device properties). The devices can be defined

within the same channel or under separate channels. For more information, refer to Optimizing Siemens

TCP/IP Ethernet Communication.

Channel.Device=1 CP connection

There are three types of links: PC (applications), OP (operator panel), and PG (programming device). OP and PG

are usually reserved but can be used if all PC connections are taken.

Type S7-300 CPU 314, 315 S7-400 CPU 412, 413 S7-400 CPU 414 S7-400 CPU 416

PC 2 14 30 62

OP 1 1 1 1

PG 1 1 1 1

Default Number Simultaneous Requests

Example:

Given an S7-400 CPU 412, 14 simultaneous requests can be achieved by defining 14 identical devices in the OPC

server with all configured for Link Type PC. In addition to the PC connections, two more devices can be configured

for Link Type OP and PG. This provides 16 connections overall.

Caution: Connection resources are shared amongst applications communicating with the CP. If another

application such as STEP 7 is configured to use Industrial Ethernet over TCP/IP, at least one PG/PC connection

must be left open for that application to use.

Note:

For information on increasing the number of PG, OP and PC type connections, refer to How to Configure S7-

300/400 Connections in STEP 7.

CPU Settings

The following settings must match the values entered in STEP 7's HW configuration program.

Rack

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