Example - WAGO 750-640 Manual

14 • 750-640 [RTC Module]
Functional Description
A switching point is defined using the following entries:
Offset Meaning
12
16
20
*) When a channel is accessed by two or more switching points, the point that is switching on
is enforced.
With an entry in the configuration data, the operation mode can be switched
into automatic or manual for each channel. The mode can also be selected via
the SET_AUTO function. When switching to the manual mode, the current
status is pending until it is set manually again. When switching to the
automatic mode, the current status (which may be set manually) is pending
until it is set anew automatically.
After power restoration, the last occurrence of all timers as well as the last
manual setting is taken into account, and the last theoretical status held during
the powerless time is set for each channel.
2.1.1.6.2.1.1

Example

Switching channels are used in an office for temperature and lighting control.
Channel 1 controls a temperature regulator, which has a binary signal as an
input, so that day and night time can be selected. On weekdays, the
temperature is increased at 06:00 and reduced at 18:00.
The heating is turned completely off during vacation days from 26.05.2003 to
13.06.2003.
Room lighting is controlled by channel 4. The controller queries the light
switch and the channel is set manually via SET_CHANNEL and
CLEAR_CHANNEL. If the employees forget to switch off the light in the
evening, this will be done automatically at 19:30.
0 First-time appearance
4 Last appearance
8 Time between two
switching points
Switched channels (on)
Switched channels (off)
Mask for weekdays
Format
DATE_AND_TIME
DATE_AND_TIME
DATE_AND_TIME
Binary
Binary
Bit 0 = Mo ...
Bit 6 = So,
0 = every,
0x7F = every
Length Comment
32 bit
32 bit 0 = not used
32 bit 0 = single event
32 bit Dominant *)
32 bit Recessive
8 bit
WAGO-I/O-SYSTEM 750
I/O-Modules