Prosoft-technology PLX8X-MNET-61850 User Manual download pdf (Page 155)

PLX8x-MNET-61850 ♦ Communication Gateway Reference

Modbus TCP/IP to IEC 61850 User Manual

ProSoft Technology, Inc. Page 155 of 228

May 14, 2014

IED Disconnect/Reconnect

If for any reason an IED disconnects from the network, the ProSoft gateway will

continually poll for the device and attempt to reconnect.

6.4.5 Control

Operate

Used by Direct control with normal security, SBO control with normal security,

Direct control with enhanced security, and SBO control with enhanced security to

write data to IED devices.

In the case where the logical node has (for example) Pos data that has SBOw,

Oper, and Cancel, the user needs to map the Oper structure only when wanting

to control that data. SBOw, Oper, and Cancel all refer to controlling the same

data attributes on the IED. The gateway automatically handles the select with

value. So although the SBOw and Cancel can be seen in the configuration

software, they should not be mapped. Only the Oper should be mapped. (The

Cancel structure should only be mapped if it is required.)

The IEC 61850 Oper Structure has Data Attributes as defined by the standard.

When you make MMS Writes from the Modbus device to the IED, if you do not

populate all data elements of Oper, the gateway will by default populate the other

data elements with 0 (zero). The exception to this is T which is always set to the

current time in the gateway.

The IEC-61850 Client driver needs to provide the following information to the

IED. These Data Attributes will be available for the user to select and set.

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Prosoft-technology PLX8X-MNET-61850 User Manual Page 155