Siemens Synco700 RMK770, Руководство по документации

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Building Technologies Boiler Sequence Controller RMK770 CE1P3132en
HVAC Products 4 General settings 01.03.2005
Operating line Range Factory setting
Clock time operation Autonomous / Slave /
Master Autonomous
If the controller is set as a clock time slave, it can also be selected whether it shall be
possible to adjust the master clock’s time of day from this controller.
The following remote settings for the clock time slave are possible:
•
No (clock time slave with no facility for setting the system time)
•
Yes (clock time slave with facility for setting the system time)
Commissioning > Communication > Basic settings
Operating line Range Factory setting
Remote setting clock slave Yes / No Yes
The individual settings have the following impact:
Entry Effect Diagram
Autonomous •
The time of day on the controller
can be adjusted
•
The controller’s time of day is not
matched to the system time
Contr. time System time
Readjustment
Slave,
remote setting
clock slave No •
The time of day on the controller
cannot be adjusted
•
The controller’s time of day is con-
tinuously and automatically
matched to the system time
Contr. time System time
Readjustment
Slave,
remote setting
clock slave Yes •
The controller’s time of day can be
adjusted and, at the same time, the
system time is adjusted
•
The controller’s time of day is con-
tinuously and automatically
matched to the system time
31
40Z
06
Contr. time System time
Readjustment
Master
•
The time of day on the controller
can be readjusted and, at the same
time, adjusts the system time
•
The controller’s time of day is con-
tinuously and automatically
matched to the system time
Contr. time System time
Readjustment
Only one clock time master per system may be used. If several controllers are param-
eterized as masters, a fault status message will be delivered.
The plant should always be operated in a synchronized manner.
4.1.3 Error handling
If the clock on the bus is missing and the local clock is parameterized as the clock time
slave, operation continues with the internal clock and a fault status message "System time
failure” will be delivered.
In the event of a power failure, the clock has a reserve of 12 hours.
If the controller loses its time of day after a power failure and the time is not retransmit-
ted via bus, a fault status message "Invalid time of day“ will be delivered.
An invalid time of day flashes.
Number Text Effect
Setting
Recommendation
Fault status messages