6. Function blocks
6.1 Manufacturer function blocks
6.1 Manufacturer function blocks
6.1.1 Timer modules
6.1.1.1 HW - Weekly timer (Hour Week)
easyE4 devices feature a real-time clock with a date and time functionality.
When combined with the HW, HY or WT, YT function blocks, this real-time clock
makes it possible to implement the functionality of a weekly timer and year time
switch.
→ Section "Time and Date setting", page 644
The AC manufacturer function block, Astronomic clock, can be used to program
switching operations based on sunrise and sunset times. In order for this to work
properly, the settings for the device clock and the device location's time zone and
geographic coordinates must be correctly selected in this tab.
General
easyE4 base devices provide 32 weekly timer HW01…HW32
(Hour Week).
Each weekly timer provides 4 channels. These channels all
act jointly on the function block output Q1 of the weekly timer.
Operating principle
Each of the 32 weekly timer, HW01 through HW32, features four channels that can
each be configured with an ON event and an OFF event in the parameter con-
figuration for the block. All channels act jointly on function block output Q1.
The following abbreviations are used for the individual days of the week:
Monday = Mon, Tuesday = Tue, Wednesday = Wed, Thursday = Thu, Fri = Fri,
Saturday = Sat, Sunday = Sun.
The function block and its parameters
Function block inputs
 Description Note
(bit) 
EN
1: Activates the function block.
The checkbox for the
Function block release by EN is neces-
sary
parameter must first be enabled
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easyE402/24 MN050009ENEaton.com
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