Siemens Simatic S7-400 - Page 84

Time switch based on the S7-300/400 CPUs with simple HMI system
including radio-controlled clock connection
Rev. B - final 19.07.2002 84/84
Copyright © Siemens AG 2005 All rights reserved
BID21669756_Zeitschaltuhr_einfach_DOKU_v20_e.doc
Software interface and block parameterization
Along with the hardware, a disk is supplied that contains all S7 blocks
necessary for the SICLOCK DCF77 reception service. These are: FB100,
DB100, SFC0, SFC39, SFC40, FC34
These blocks have to be included in the blocks folder of your S7 project.
The call of the FB100 function block has to be made in the following blocks:
• OB 1
• OB 100 (Startup OB)
• OB 35 (timed alarm 10 ms):
Parameterization follows the table below:
Call
in
OB1 OB100 OB35
Additional information:
Additional information on the SICLOCK DCF receiver is available for download
from http://www.siclock.de/, and in the operating and installation instructions
supplied with the hardware.