Справочник Пользователя для Siemens 9300
Third Party Protocols
9300 Series User’s Guide
Page 54
Chapter 3 - Default Meter Functionality
Third Party Protocols
Modbus and DNP modules are factory configured and do not require basic
configuration changes. Changing the factory configuration is an advanced setup
procedure that requires an understanding of the protocol, as well as an
understanding of the meter’s internal operation.
configuration changes. Changing the factory configuration is an advanced setup
procedure that requires an understanding of the protocol, as well as an
understanding of the meter’s internal operation.
Refer to the technical notes DNP 3.0 and ION Technology and Modbus and ION
Technology for the appropriate list of protocol parameters available.
Technology for the appropriate list of protocol parameters available.
N
OTE
The meter can also be configured to receive data through Modbus or DNP 3.0, though there is no factory-
configured framework for receiving data through these protocols. An 9300 Series meter can receive data
if the meter writes to hard-coded registers.
configured framework for receiving data through these protocols. An 9300 Series meter can receive data
if the meter writes to hard-coded registers.
For details on configuring your network for receiving data via Modbus or DNP 3.0, refer to the DNP Slave
Import module descriptions in
Import module descriptions in
ION Programmer’s Reference
and the 9300 Series Modbus protocol
documents, as well as the technical notes
DNP 3.0 and ION Technology
and
Modbus and ION
Technology
.
Communications Protocol Configuration
In order to use the factory Modbus or DNP configuration you must first configure
the communications channel you want to use. By default all communications ports
are configured to use the ACCESS protocol. Choose the 3rd-party protocol you
want from the list of available protocols in the Communications module’s Protocol
setup register.
the communications channel you want to use. By default all communications ports
are configured to use the ACCESS protocol. Choose the 3rd-party protocol you
want from the list of available protocols in the Communications module’s Protocol
setup register.
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OTE
Modbus RTU is available on each of the meter’s communications ports, and multiple ports can
communicate using Modbus simultaneously. Only a single port can use the DNP 3.00 protocol at any
one time.
communicate using Modbus simultaneously. Only a single port can use the DNP 3.00 protocol at any
one time.
The meter is factory configured to provide advanced interoperability support. The
meter is readily incorporated into third party power monitoring systems. This
section describes how to communicate with the meter via Modbus RTU, Profibus,
and DNP 3.0 protocols.
meter is readily incorporated into third party power monitoring systems. This
section describes how to communicate with the meter via Modbus RTU, Profibus,
and DNP 3.0 protocols.
Using the Modbus RTU Protocol
The meter can make any real-time data available through the Modbus RTU
protocol. Modbus Master devices connected to the 9300 can access this data.
Modbus Master devices can also write data into 9300’s module registers, making
device configuration changes or initializing control actions.
protocol. Modbus Master devices connected to the 9300 can access this data.
Modbus Master devices can also write data into 9300’s module registers, making
device configuration changes or initializing control actions.