Siemens SIMATIC NET CP 343-1 Uživatelský manuál stáhnout pdf (Strana 36)

5 Performance Data / Operation

B−36

CP 343-1 Advancedfor Industrial Ethernet / Manual Part B

Release 06/2008

C79000-G8976-C202-04

Table 5-9 Characteristic data for PROFINET CBA communication, Fortsetzung

Characteristic Limit valueTypical value

Remote interconnections with acyclic transmission

Sampling frequency: sampling interval, min.

Possible values: 100, 200, 500, and 1000 ms

Fast value: 20%

Medium value: 40%

Slow value: 40%

100 ms minimum

Number of incoming interconnections 50 128 maximum

Number of outgoing interconnections 50 128 maximum

Data length of all incoming interconnections 2048 bytes 8192 bytes

Data length of all outgoing interconnections 2048 bytes 8192 bytes

Remote interconnections with cyclic transmission

Transmission frequency: transmission interval, min.

Possible values: 8, 16, 32, 64, 128, 256 and 512

Fast value: 20%

Medium value: 40%

Slow value: 40%

8 ms minimum

Number of incoming interconnections 125 200

Number of outgoing interconnections 125 200

Data length of all incoming interconnections

Note:

The data length of all incoming interconnections

limited to 484 bytes gross per transmission

frequency and per partner station. Due to the

differences in header information, the net data

length depends on the data types being used.

In the best case, a maximum of 2 byte arrays with a

length of 238 bytes can be interconnected; in the

worst case, a maximum of 120 properties of the

type “Char” can be interconnected.

1000 bytes 2000 bytes

Data length of all outgoing interconnections 1000 bytes 2000 bytes

HMI variables over PROFINET (acyclic)

Number of stations that can register for HMI

variables (PN OPC/iMap)

Stations are 2 * PN OPC and 1 * SIMATIC iMap

− 3

HMI variable update − 500 ms minimum

Number of HMI variables − 200 maximum

Data length of all HMI variables 1600

8192 bytes

Device-internal interconnections

Number of device-internal interconnections 50 256

Data length of all device-internal interconnections 400 bytes 2400 bytes

Interconnections with constants

Number of interconnections with constants 100 200 maximum

Data length of all interconnections with constants 1024 bytes 4096 bytes

PROFIBUS proxy functionality

Supported No No

1 2 ... 31 32 33 34 35 36 37 38 39 40 41 ... 79 80

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