5-66 N60 NETWORK STABILITY AND SYNCHROPHASOR MEASUREMENT SYSTEM – INSTRUCTION MANUALPRODUCT SETUP CHAPTER 5: SETTINGS5Switch 1The UR disconnect switch control and status monitoring elements have certain settings that configure how the IEC 61850protocol interacts with these elements. These settings are described in this section. See the Settings > System Setup >Disconnect Switches section later in this chapter for details on the operation of the disconnect switch control elements.Navigate to Settings > Product Setup > Communications > IEC 61850 > System Setup > Switches > Switch 1 to accessthe settings that configure the IEC 61850 protocol interface with the first disconnect switch control and status monitoringelement. The settings and functionality for the others are similar.Figure 5-24: Switches panelXSWI1 ST.LOC OPERANDRange: any FlexLogic operandDefault: OffThis setting is used to select a FlexLogic operand that declares to IEC 61850 services that disconnect switch 1 is selectedfor local control. While the selected operand is asserted, Disc0XSWI1.Loc.stVal is true and IEC 61850 commands toDiscCSWI1.Pos and Disc0XSWI1.Pos are not accepted, and a Negative Response (-Rsp) is issued with the REASON CODEof Blocked-by-switching-hierarchy.XSWI1 INTERLOCK OPNRange: any FlexLogic operandDefault: OnThis setting is used to select a FlexLogic operand that declares to IEC 61850 services that interlocking conditions are notacceptable for opening disconnect switch 1. While the selected operand is asserted, the value of DiscCILO.EnaOpn.stValis false. If a SelectWithValue or Operate service with ctlVal false and with Check.Interlock-check true is requested ofDiscCSWI1.Pos or Disc0XSWI1.Pos and the selected operand is not activated, a Negative Response (-Rsp) is issued withthe REASON CODE of Blocked-by-interlocking.