Time switch based on the S7-300/400 CPUs with simple HMI system
including radio-controlled clock connection
Rev. B - final 19.07.2002 82/84
Copyright © Siemens AG 2005 All rights reserved
BID21669756_Zeitschaltuhr_einfach_DOKU_v20_e.doc
Hardware components
The following hardware components are required for connection to S7-300:
Component Order number Description/View
SICLOCK DCFRS 2XV9450-1AR06 DCF77 receiver
9 pole DSUB connector
with 5m connection cable
2XV9450-1AR35 For connection to SIMATIC
Optocoupler 3TX7-005-3PB54
The following figure shows a complete schematic hardware configuration
with SICLOCK radio clock:
Radio clock
Optocoupler
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