You can monitor PLC contact & register content by your android phone
1.This app need USB OTG wire.
2.This app current support MOXA USB<->RS-232 signal converter (U1110).
3.You can monitor Mitsubishi PLC(FX series) status by this app .
4.You can monitor device X、Y、M、C、T and register D in PLC.
5.Design by Folus Wen.