User manual

Toolbox 32 User Manual 1.47d www.cse-semaphore.com/mykingfisher
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99
Ladder Logic - Clock Synchronization
Synchronizes the RTU's real-time clock. There are two modes of operation:
• Single RTU Sync: Forces the real-time clock of the target RTU to match the local RTU.
• Global RTU Sync: Sends a global command to synchronize all RTUs that are connected to the
same comms port as the target RTU.
In both modes of operation, the communication delay is first measured between the local RTU and the target
RTU. The clock synchronisation message is then adjusted to compensate for this delay. Note: if
communications to the target RTU fail, a global clock synchronization is not carried out.
Comment: A 12-character description.
RTU # (1-255): Target RTU to be synchronized and to be used for calculating the communication delay.
Global Sync Command? Indicates whether to issue a single or global sync command. Do not use a Global
Sync Command when the target RTU is indirectly connected (ie. via a store-and-forward RTU) as the longer
communication delay will be added to the clocks of all the directly connected RTUs when the global clock
synchronization message is sent.