Siemens SIMATIC TIM 3V-IE DNP3, Системное руководство

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Uses and properties of the TIM
1.4 Communications services of the TIM
TIM DNP3
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System Manual, 12/2015, C79000-G8976-C253-04
DNP3 subscriber types
The following subscriber types are specified in the DNP3 specification:
● Master
Synonym: DNP3 master station
For the subscriber type "Master", the term "DNP3 master station" is used in this manual.
A master station is a higher-level controlling device.
When using DNP3 TIM modules, the following devices can operate as the DNP3 master
station:
–
DNP3 TIM
– Control center system
System supported by the DNP3 master function, for example an OPC client system.
● Outstation
Synonym: DNP3 station
For the subscriber type "Outstation", the term "DNP3 station" is used in this manual.
As a lower-level system, the DNP3 station sends process data (measured values,
statuses) to the DNP3 master station and receives switching or setpoint commands from
the DNP3 master station.
DNP3 subscriber types supported by the TIM
The following DNP3 subscriber types are supported by the TIM modules:
● DNP3 master station
Master in the sense of the DNP3 specification
The DNP3 master station is a DNP3 TIM in an S7-300/S7-400 station.
Due to the lower performance of the TIM 3V IE DNP3 (max. 8 possible connections), the
TIM 4R IE DNP3 is recommended as the master station TIM.
In the case of the TIM 3V IE DNP3, the output device for the process data is the
connected S7 CPU.
If a TIM 4R-IE DNP3 is used, the process data can be sent to control systems or other
output devices via other interfaces of the module.
The polling of the stations is specified in the configuration of the TIM.