ABB CL Series, Applications Manual

Page: 247 / 428

Wiring with the display system
244
1SVC 440 795 M1100
Setting date/time
This function block allows you to selectively place the date
and time onto the network. All other stations accept the date
and time of the sending station. The function block name is
SC01 (send clock).
Figure: 128: Display system circuit diagram with SC function block
Parameter display and parameter set for the SC
function block:
The SC01 function block has no parameters as it is a
triggered system service.
Coil
SC01T: Trigger coil
Memory requirement of the SC function block
The SC function block requires 20 bytes of memory.
SC diagnostics
The SC function block only functions if the CL-NET is running
properly (
a section “Signs of life of the individual stations
and diagnostics”, page 331).
Function of the date/time 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 CL-NET network. All
other network stations must accept these values.
This process can be repeated as often as desired. The trigger
coil must be triggered again from state 0 to state 1.
HW01QW1---------------------------Ä SC01T
h The station that sends its date and time does this when
the seconds value is zero.
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.