Carel pCOWeb - 5 CLOCK AND LOGGER; 5.2 CONFIGURING CLOCK WITH PCO SYNCHRONIZATION

pCOWeb +030220966 – rel. 1.1 – 12.12.2017 29
5 CLOCK AND LOGGER
pCOWeb features an internal clock that keeps its settings only while power is supplied. When rebooting, the date / time is reset to: 1970-01-01 00:00.
pCOWeb can be configured so that it can set its own clock based on the time set on the pCO controller or on the time obtained from a NTP (Network Time
Protocol) server. Clock setting can happen periodically or only at start. Default is no clock synchronization active. The user can also set its own time zone.
5.1 TIME ZONE SETTING
User can specify its time zone, by selecting it from the drop-down list in clock configuration page. Default is UTC.
NOTE: The settings will not be valid as soon as it is confirmed; pCOWeb needs to be rebooted.
5.2 CONFIGURING CLOCK WITH pCO SYNCHRONIZATION
For this to occur, the application program running on the pCO must transmit the information on five selected integer supervisory variables.
The page shown in
Figure 5.a is used to enable the synchronization function and specify the indexes of the five integer supervisory variables.
Figure 5.a - Setting clock synchronisation
The page shown in Figure 5.b is used to show how integers’ values are related to the day, month, year, hour and minute data sent in supervision from the
pCO application software. Figure 5.b shows as first integer a variable with value ‘2017; if in the variable list of the pCO application you find that the first
integer represents the variable current_year you can set in Figure 5.a “Year variable index” = ‘1’ and the pCOWeb will show in the date ‘2017’ i.e. year 2017.
Figure 5.b - Relation between indexes and values
NOTE: The settings will be valid as soon as they are confirmed; pCOWeb does not need to be rebooted.