Prosoft-technology PLX8X-MNET-61850 User Manual Page 66

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Example Configurations PLX8x-MNET-61850 Communication Gateway
User Manual Modbus TCP/IP to IEC 61850
Page 66 of 228 ProSoft Technology, Inc.
May 14, 2014
3.1.3 Creating the Modbus Network Configuration
The gateway can operate as a Modbus TCP/IP client and / or server. In this
example, it will operate as both, at the same time.
There four kinds of Modbus devices shown in the Device View section:
1 Schneider Electric M340 PAC devices
2 Schneider Electric Quantum PLC devices
3 Schneider Electric Premium PLC devices
4 Modbus Generic devices.
The ProSoft gateway offers tight integration with the Schneider Electric devices,
when a Schneider Electric device is used.
When you map Data Attributes that need to be read from an IED and sent to a
Schneider Electric device, the configuration software will automatically generate
Modbus Function Code 16 commands to push that data to the Schneider Electric
processor.
Modbus Client write commands will be set by default to write only on data
change. This means that the data will only be pushed from the ProSoft
gateway to the PLC when new data has arrived from the IED. This keeps the
network traffic efficient by sending data only when it needs to be sent.
These Modbus Client commands are already mapped to the PLC address which
is already entered in the ProSoft Gateway Configuration window.
The ProSoft gateway exports three files, two of which are used exclusivley for
Schneider Electric Processors:
a) A Variable File (.xsy), which contains Tag Names and Data Types
b) A Function Block file (.xfm), which is currently exported for only the M340
and Quantum device types (export for Premium PLCs will be offered in a
future ProSoft 61850 Configuration Manager release.)
c) A Tag Name List file (.csv), which is a list of gateway internal tag names in
a comma-separated -value format.
To Create the Modbus Network Configuration for Schneider Electric Devices
a In the Device View section, expand SCHNEIDER ELECTRIC to see
QUANTUM, PREMIUM, OR M340 device options.
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