Time switch based on the S7-300/400 CPUs with simple HMI system
including radio-controlled clock connection
Rev. B - final 19.07.2002 79/84
Copyright © Siemens AG 2005 All rights reserved
BID21669756_Zeitschaltuhr_einfach_DOKU_v20_e.doc
9.3 What to do if more holidays or special days are needed?
Table 9-3 More holidays/special days
Step Instruction Note / Instruction
1
Open the DB in which the holidays and
special days are stored (DB100 in this
example)
2
Increase the number of Array elements to
the desired number (default value 30)
3 Save the DB.
4
Open the FC which checks the holidays
(FC100 in this example).
5
Increase the loop count. The loop count
must be as high as the number of array
elements
Note:
The code sequence is available in the
network 2 of the block.
7 Save the FC.
8
Load the block via PLC -> Download im
SIMATIC Manager.
Or download symbol
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