IoTize TapNPass Fixed NFC-BLE Adapter for Modbus® is a wireless adapter for local connection of mobile devices via RS-232, RS-485, or USB Fieldbus. It supports Modbus and speeds on-site maintenance by providing permanent NFC and Bluetooth wireless interfaces. The adapter connects mobile devices to a target system with an accessible serial Fieldbus or Modbus port. They integrate into and are powered by the target system. All TapNPass products are easily configured to control access by different types of users who conduct or supervise servicing of the target system. They facilitate the rapid creation of user interfaces that run on Android, iOS, and Windows-based mobile devices.