Functions
2.50 Command Processing
SIPROTEC, 7UM62, Manual
C53000-G1176-C149-7, Release date 03.2010
351
2.50.3 Command Processing
Security mechanisms in the command path ensure that a switch command can be carried out only if the test of
previously established criteria has been successfully completed. In addition to general fixed prescribed tests,
further interlocks can be configured for each resource separately. The actual execution of the command job
also is then monitored. The entire sequence of a command job is described briefly in the following:
2.50.3.1 Description
Checking a Command Job
Please observe the following:
• Command Entry, e.g. using the integrated operator interface
– Check Password → access rights
– Check Switching Mode (interlocking activated/deactivated) → Selection of Deactivated Interlocking Rec-
ognition.
• User-Configurable Command Checks
– Switching Authority
– Device position check (set vs. actual comparison)
– Interlocking, Zone Controlled (logic using CFC)
– Interlocking, System Interlocking (centrally, using SICAM)
– Double Operation Locking (interlocking of parallel switching operations)
– Protection Blocking (blocking of switching operations by protective functions)
• Fixed Command Checks
– Timeout Monitoring (time between command issue and processing is monitored)
– Configuration in Process (if configuration is in process, commands are denied or delayed)
– Operating Equipment Enabled as Output (if an operating equipment component was configured, but not
configured to a binary input, the command is denied)
– Output Block (if an output block has been programmed for the circuit breaker, and is active at the moment
the command is processed, then the command is denied)
– Module Hardware Malfunction
– Command in Progress (only one command can be processed at a time for one operating equipment,
object-related Double Operation Block)
– 1–of–n Check (for multiple allocations such as common contact relays, check whether a command pro-
cedure has already been initiated for the output relays concerned).
Command execution monitoring
The following is monitored:
• Interruption of a command procedure because of a Cancel Command
• Run Time Monitor (feedback indication monitoring time)
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