Hi all,
I currently have someone coding and mapping the I/O's for one of these..
http://www.mikroe.com/eng/products/view/419/picplc16-v6-plc-system/
It will end up being 2 of the above connected together due to the amount of inputs and outputs that are needed and will have a GSM controller on the main board.
I need to put some kind of a battery back up on the system so that when the 230V supply has a power cut it will keep the boards running and trigger an input thus sending a txt message telling the user the power has been cut.
The way as I see it this would work is if there is a 24V battery of which is continuously being charged and the boards are run from this battery. Once the 230V source goes open circuit it will then trigger a relay and close an input but not be effected by the power loss due to the system running from the battery all the time?
Another possible way would be to have it so it runs from its 24V power supply all the time then if the supply drops it will engage a battery and at the same time trigger the input.
A UPS might be an option but they seem very expensive?
Thanks
I currently have someone coding and mapping the I/O's for one of these..
http://www.mikroe.com/eng/products/view/419/picplc16-v6-plc-system/
It will end up being 2 of the above connected together due to the amount of inputs and outputs that are needed and will have a GSM controller on the main board.
I need to put some kind of a battery back up on the system so that when the 230V supply has a power cut it will keep the boards running and trigger an input thus sending a txt message telling the user the power has been cut.
The way as I see it this would work is if there is a 24V battery of which is continuously being charged and the boards are run from this battery. Once the 230V source goes open circuit it will then trigger a relay and close an input but not be effected by the power loss due to the system running from the battery all the time?
Another possible way would be to have it so it runs from its 24V power supply all the time then if the supply drops it will engage a battery and at the same time trigger the input.
A UPS might be an option but they seem very expensive?
Thanks