arduino with relay shields

Projects General Guidance
1

Hallo,
is adrunio UNO mit 4 channels relay shields good for deterministic Timing controll or real time system?

i am trying to mit adrunio UNO and relay shields deterministic Timing switch on or off between two DC Power?for example?DC Power#1 one channel?3.5V) output on,another DC Power#2 three channel(1v,+18V,-18V) output off,after 20s DC Power#1 one channel output off,another DC Power#2 three channel on, after 10s DC Power#1 one channel?3.5V) output on,another DC Power#2 three channel(1v,+18V,-18V) output off,like this periodically switching on or off.
i hope to with Labview progamming kontroll this Switching ,und no data transmission delay in the second range.

2

Are you using Google translate to translate from German? If yes, then posting on German section might be a good idea.
http://arduino.cc/forum/index.php/board,31.0.html

As for your question, if I understood you correctly then yes, you can use Arduino to control multiple relays based on a preprogrammed program or based on real time decision making.