ProSoft Technology PLX8X-MNET-61850 User Manual
Page 48

ProSoft 61850 Configuration Manager
PLX8x-MNET-61850 ♦ Communication Gateway
User Manual
Modbus TCP/IP to IEC 61850
Page 48 of 228
ProSoft Technology, Inc.
May 14, 2014
To set all tags to the same Enable value, right-click and you will see the option
for that.
MB Func
This is the Modbus Function code that the gateway will use. The default is
W
RITE
, which will be Modbus Function code 16. If needed, this value can be set
to R
EAD
, which will be Modbus Function code 3. For those tags set to R
EAD
, the
gateway will act as a Modbus TCP/IP Client, and will actively read that tag from
the PLC or PAC server.
MB Addr
This is the Modbus Address in the PLC which the gateway will write to or read
from.
This parameter specifies the starting Modbus register address in the Modbus
server device.
For Schneider Electric devices, the MB Addr is automatically determined based
upon the PLC Write Start Register (%MW) entered on the Modbus TCP/IP
Device Configuration window.
For Generic Modbus devices the user will need to enter the target Modbus
address for each Data Attribute transfer.
Poll Interval
This parameter specifies the minimum interval to wait between successive
executions of a given command when the enable code has been set for
continuous execution. The parameter is entered in 1/10th of a second. Therefore,
if a value of 100 is entered for a command, the command executes no more
frequently than every 10 seconds. If poll interval is 0, then the command will be
sent every time it is encountered as the firmware scans through in the poll list.
Length
This is determined based upon the data type of the Data Attribute.
For Schneider Electric devices, the Length field is not editable for Quantum,
Premium, or M340 devices.