Siemens Simatic S7-400

Time switch based on the S7-300/400 CPUs with simple HMI system
including radio-controlled clock connection
Rev. B - final 19.07.2002 55/84
Copyright © Siemens AG 2005 All rights reserved
BID21669756_Zeitschaltuhr_einfach_DOKU_v20_e.doc
Table 6-1 Switching times of the clocks for application case 1
Clock (Time switch) Switching time Clock enabled Output reset
One-day time switch 1
(D1)
7:00 to 8:30 a.m Yes No
One-day time switch 2
(D2)
6:00 to 8:00 p.m No No
Seven-day time
switch 1 (W1)
every Monday
from 6:00 to 8:00
Yes Yes
Seven-day week time
switch 2 (W2)
from Friday, 4:00
p.m to Monday
6:00 a.m.
Yes No
Seven-day time
switch 3 (W3)
from Monday to
Friday from 12:00
to 4:00 p.m.
Yes No
One-month time
switch 1 (M1)
every 10
th
of the
month from 6:00
a.m. to 10:00 p.m.
No Yes
One-month time
switch 2 (M2)
on last day of
month from 2:00 to
8:00 p.m.
Yes No
One-year time switch
(Y)
from 1
st
of May,
6:00 to 1
st
of June
6:00 a.m.
Yes No
Holidays (H)
6.1.02, 1.5.02,
24.12.02.
- -
A separate view with the necessary variable switches must be available for
every used time switch. The views for the different time switches are called
from an overview display.
In this case the summer/winter time changeover is controlled by the radio
clock module. You can change this default setting via the push of the
corresponding button in the ProTool view. Thus the changeover will be
performed program controlled with the FB 103 „summer_winter“.