Internet PLC Forum
General => Technical support => Topic started by: Zelphia on October 30, 2006, 03:31:25 AM
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I would like to build a zone controller for my boiler using the T100MD888+. It has the right number but the wrong kind of I/O. The entire system is 24VAC. Is the EXP1616R my best solution for reading 24VAC inputs and controlling 24VAC devices?
thanks
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You could use external relays.
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If you need 8 relay outputs and 8 relay inputs (to convert the AC signal to DC to the T100MD888+) , then you have to check if the cost of buy 16 external relays plus the wiring is worthwhile compared to the EXP1616R price of $160.00. EXP1616R gives you 16 relay outputs and 16 AC inputs directly.