Hi there!
I've created an Android app to read/write data to Allen Bradley PLCs via serial DF1 communication (a Bluetooth serial RS-232 adapter is required). You can use it to read and write Binary (B), Integer (N), Float (F) and Long (L) data files to a MicroLogix or SLC500 PLC. The app is now an open testing release in Google Play and I really appreciate any feedback.
Youtube: https://www.youtube.com/watch?v=klYEuzdNBNg
Google Play: https://play.google.com/store/apps/details?id=com.facsocubac.df1polling&hl=en_US&gl=US
Some of the features (such as Write data to the PLC) require to upgrade to the Pro version. If you wish to upgrade, just send me an email and I will send you a promo code so you can test the full app for free.
Thanks a lot for your help
Facso