Siemens SIMATIC NET CP 343-1 Instrukcja Użytkownika Pobierz pdf (Strona 16)

Performance data

2.3 Characteristics of S7 communication

CP 343-1 Lean

16 Manual, 10/2012, C79000−G8976−C198−07

● Further TCP connections for Web diagnostics

● PROFINET IO

– As PROFINET IO device:

1 PROFINET connection to a PROFINET IO controller

– As shared device:

2 PROFINET connections to 2 PROFINET IO controllers

2.3 Characteristics of S7 communication

Number of connections

Table 2- 2 Number of connections for S7 communication

Characteristic Explanation / values

Number of connections for S7 communication via

Industrial Ethernet for:

 Operator control and monitoring functions

(HMI)

 S7 connections configured at one end

Maximum 4 (one-ended connections)

The number depends on the CPU type being used; the valid values

can be found in /1/ (Page 60).

LAN Interface - data record length per protocol unit

 sending

 receiving

 240 bytes / PDU

2.4 Characteristic data of the SEND/RECEIVE Interface

The SEND/RECEIVE interface provides access to communication over TCP, ISOonTCP and

UDP connections.

The following characteristics are important:

1 2 ... 11 12 13 14 15 16 17 18 19 20 21 ... 67 68

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