Solar Panel Module

Can anyone recommend a PLC for a simple project?

I'm trying to put together a control module to monitor the power in a remote communications system. The system runs off two battery banks powered by solar panels. I'm trying to add a generator back-up, so I need the controller to be able to monitor the battery bank voltages and a few other analog signals (shouldn't be more than 6 analog inputs total). For the outputs, the controller needs to be able to start the generator and switch a few relays. My main concerns are low power consumption, a wide temperature operability range (needs to work at -40 degrees celsius), and low cost. Can anyone recommend a PLC for me to use? Thanks for your time everyone!

The -40 degrees C is the problem with this. I don't think any off the shelf PLCs will work that cold. I just looked at AllenBradley picologix and micrologix manuals and they say 0 degrees C is the lowest operating temperature.

You need to provide a small heated enclosure or else find an embedded controller that can handle that temperature range.

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