Client
Reservation
logic
SCSWI
SXCBR /
SXSWI
RES_GRT = TRUE
EXE_CL
operateAck/AddCause = 0
selectAck/AddCause = 0
SELECTED = TRUE
POSITION = 00, timeStamp
POSITION = 10, timeStamp
cmdTermination/
AddCause = 0
RES_GRT = FALSE
operateAck/AddCause = 0
requestedPosition = 10
opRcvd = TRUE
opOK = TRUE, tOpOk
POSITION = 00, timeStamp
POSITION = 10, timeStamp
cmdTermination/AddCause = 0
select
RES_RQ = FALSE
SELECTED = FALSE
tSelect
tReservation
Response
tExecutionFB
RES_RQ = TRUE
IEC15000416-1-EN.vsdx
IEC15000416 V1 EN-US
Figure 437: Example of command sequence for a successful close command when the control
model SBO with enhanced security is used
client
Reservation
core
SwitchCtrl
core
Switch
core
RES_GRT = TRUE
EXE_CL
operateAck/AddCause = 0
POSITION = 00, timeStamp
RES_GRT = FALSE
operateAck/AddCause = 0
requestedPosition = 10
opRcvd = TRUE
opOK = TRUE, tOpOk
POSITION = 00, timeStamp
POSITION = 10, timeStamp
RES_RQ
RES_RQ = FALSE
tReservation
Response
POSITION = 10, timeStamp
cmdTermination/
AddCause = 0
IEC15000417-1-en.vsdx
IEC15000417 V1 EN-US
Figure 438: Example of command sequence for a successful close command when the control
model direct with normal security is used
Normal security means that only the command is evaluated and the resulting position is not
supervised. Enhanced security means that the command sequence is supervised in three steps,
the selection, command evaluation and the supervision of position. Each step ends up with a
pulsed signal to indicate that the respective step in the command sequence is finished. If an error
Section 14 1MRK 502 066-UUS B
Control
840
Technical manual
To Next Page
Loading...
