Справочник Пользователя для Siemens 6AV6651-7KA01-3AA4 - S7-1200 + KTP400 Basic Starter Kit 6AV6651-7KA01-3AA4
Модели
6AV6651-7KA01-3AA4
Easy to communicate between devices
7.6 PROFIBUS
Easy Book
Manual, 03/2014, A5E02486774-AF
Manual, 03/2014, A5E02486774-AF
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The S7-1200 is connected to a PROFIBUS network as a DP slave with the CM 1242-5
communication module. The CM 1242-5 (DP slave) module can be the communications
partner of DP V0/V1 masters. If you want to configure the module in a third-party system,
there is a GSD file available for the CM 1242-5 (DP slave) on the CD that ships with the
module and on Siemens Automation Customer Support
) pages on the Internet.
In the figure below, the S7-1200 is a DP slave to an S7-300 controller:
The S7-1200 is connected to a PROFIBUS network as a DP master with the CM 1243-5
communication module. The CM 1243-5 (DP master) module can be the communications
partner of DP V0/V1 slaves. In the figure below, the S7-1200 is a master controlling an
ET200S DP slave:
If a CM 1242-5 and a CM 1243-5 are installed together, an S7-1200 can perform as both a
slave of a higher-level DP master system and a master of a lower-level DP slave system,
simultaneously:
For V4.0, you can configure a maximum of three PROFIBUS CMs per station, in which there
can be any combination of DP master or DP slave CMs. DP masters in a V3.0 or greater
CPU firmware implementation can each control a maximum of 32 slaves.
The configuration data of the PROFIBUS CMs is stored on the local CPU. This allows simple
The configuration data of the PROFIBUS CMs is stored on the local CPU. This allows simple
replacement of these communications modules when necessary.