ProSoft Technology PLX8X-MNET-61850 - Manual (Page 175)

PLX8x-MNET-61850 ♦ Communication Gateway Reference
Modbus TCP/IP to IEC 61850 User Manual
ProSoft Technology, Inc. Page 175 of 228
May 14, 2014
Direct Control with Normal Security
Direct control with normal security is commonly used for operations that act on
local data (such as a LED test) or on data for which return information is not
supervised (for example switch on a heating). It uses the Operate and
TimeActivatedOperate services.
(This diagram and text has been taken directly from the IEC 61850 Standard
document)