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SC, set date/time
299
02/16 MN05013001Z EN
Parameters
This function block is a triggerable system service. It
therefore does not have any parameters.
Coil
The trigger coil of the function block is used in the standard
circuit diagram.
Contact
The contact of the function block is evaluated in the standard
circuit diagram. A closed contact indicates:
Memory requirement
The SC function block requires 20 bytes of memory.
SC diagnostics
The SC function block only functions if the NET is running
properly (
section “Checking the functionality of the
page 543).
Operation of the function block
If the trigger coil of the function block is activated, the
current date, the day of the week and time from the sending
station is automatically put onto the NET. The sending
stations executes this operation as soon as a new minute
starts on the device real-time clock. The other stations
accept this value.
Example: The trigger pulse is actuated at 03:32:21
(hh:mm:ss). The other stations are synchronised at 03:33:00.
This time is accessed by all other stations. This process can
be repeated as often as desired.
Accuracy of time synchronisation
The maximum time deviation between the functional
stations is 5 s.
Parameters
Function
SC01T
_
Trigger coil
Parameters
Function
SC01Q1
while the trigger coil is active.
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