Справочник Пользователя для Siemens 9300
9300 Series User’s Guide
Using the Modbus RTU Protocol
Chapter 3 - Default Meter Functionality
Page 55
Factory Modbus Configuration for the 9300 Series Meter
The 9300 Series meter makes data available to Modbus devices using four Modbus
Slave modules. These modules are linked to other modules in the meter that
provide energy, power and demand data. Once a communications channel is
configured to use Modbus RTU protocol (refer to “Communications Setup” in
Chapter 3), the data is available to Modbus Master devices.
Slave modules. These modules are linked to other modules in the meter that
provide energy, power and demand data. Once a communications channel is
configured to use Modbus RTU protocol (refer to “Communications Setup” in
Chapter 3), the data is available to Modbus Master devices.
As the data available through the Modbus Slave modules is in a specific format,
knowledge of the Modbus protocol and an understanding of the settings used in
the meter are required to interpret the data provided.
knowledge of the Modbus protocol and an understanding of the settings used in
the meter are required to interpret the data provided.
Changing the Modbus Configuration
If the factory Modbus configuration does not suit your needs, the existing Modbus
Slave modules can be relinked to other parameters that you want to access through
Modbus. There are ten Modbus Slave modules available in the 9300 Series meter,
so you can create more modules to make other parameters available to Modbus
Master devices.
Slave modules can be relinked to other parameters that you want to access through
Modbus. There are ten Modbus Slave modules available in the 9300 Series meter,
so you can create more modules to make other parameters available to Modbus
Master devices.
If your Modbus Master device requires data in a format different than that
provided by the factory Modbus configuration, you can edit the setup registers in
the Modbus Slave modules. These setup registers specify the Modbus format,
scaling and base address settings. Refer to the ION Programmer’s Reference for
complete details on Modbus Slave module functionality.
provided by the factory Modbus configuration, you can edit the setup registers in
the Modbus Slave modules. These setup registers specify the Modbus format,
scaling and base address settings. Refer to the ION Programmer’s Reference for
complete details on Modbus Slave module functionality.
N
OTE
Refer to the
Modbus 7300 Series
protocol document
for complete details on the Modbus implementation
in the 9300 Series of meters.
Modbus Slave Module Settings
The settings in the Modbus Slave module setup registers are shown in the tables
below. Refer to the Modbus Slave module description in the ION Programmer’s
Reference for complete details of each setup register’s function and options.
below. Refer to the Modbus Slave module description in the ION Programmer’s
Reference for complete details of each setup register’s function and options.
Refer to the Modicon Modbus Protocol document for additional details on the
Modbus implementation in the 9300 Series meter.
Modbus implementation in the 9300 Series meter.
measured data is linked
to Modbus module’s input
ION Meter
Modbus module outputs
data in Modbus format
data is available to
Modbus Master devices
Modbus Slave
Module
Power Meter
Module
Vln a
40011
communications port is set
to Modbus RTU protocol