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Modbus Monitor

Modbus TCP & TCP/RTU Client for Android based phone or tablet.
Advanced version of this app (Modbus Monitor Advanced) is available on Google Play with more advanced features such as Modbus TCP Master & Server, Modbus TCP Sensors Server, Bluetooth, USB-OTG Serial Ports, Enron/Denials Protocol, and more.


- Multi-threaded Android Modbus TCP Master/Client
- Full Protocol Address Range
- FC1, FC2, FC3, FC4
- FC5, FC6, FC15, FC16, Auto (Paid/Advanced Version Only)
- Simple 6 Digit Address input (Advanced Version)
- USB-OTG Serial Port (RS232, RS422, RS485), Modbus Serial RTU, Serial ASCII, Enron/Denials (Advanced Version)
- Bluetooth Serial Port, Modbus Serial RTU, Serial ASCII (Advanced Version Only)
- Modbus TCP and UDP protocols (Modbus TCP, RTU/TCP, UDP, RTU/UDP, Enron/Denials) (Advanced Version)
- Packet Sniffer (See Transmit and Receive Packets from your device (Advanced Version)
- Talk to Multiple IP Addresses ( Advanced Version Only)
- Import and export from Email in CSV (Gmail, Android Email, Yahoo!, MailDroid, K-9, Aqua Mail, etc)
- Write single and multiple Coils and Registers (Advanced Version Only)
- Write Data in Unsigned, Signed, Hex, Binary, Long, Double, Float, String, and BCD format (Advanced Version)-Languages: German, Spanish, French, Italian, Japanese, Polish, Russian and Chinese (Advanced Version)
- Advanced Test utility features ( Collect Interval, Inter-Packet Delay, Link-Timeout, TX/RX Counts)
- Data conversion (Hex, String, Long, Double, Float, UINT32, and BCD)
- Statistics on Analog Values ( min, max, average)
- Easy list management ( long tap copy, paste, add, remove, delete)
- RS485 Auto Echo Cancel, RTS Toggle, Delay, Polarity (Advanced Version)Easy SCADA features changes color showing good or bad data status as well as rich set of data conversions such as Hex, String, Long, Double, Float, and BCD. Easy to Add, Remove, and Modify List items by long-tap on any list item.Please provide comments and ratings that are useful to others. Email any issues to [email protected]

www.ModbusMonitor.com contains online form in “Feedback” section for those who are interested providing feedback or feature request.

Category : Tools

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Reviews (12)

65. W. Jan 28, 2021     

Improved a lot over last months. Easy to navigate and does what its supposed to.

One. Mar 22, 2021     

One of a kind app. Was looking for this for a long time now I found it. Helps on all my projects

Sur. P. Jun 14, 2021     

Easy to search modbus Bluetooth

Nun. M. Jan 31, 2021     

Does what it needs to do, and helped me a lot

A. G. u. Aug 27, 2015     

GUI is far to difficult to work with. Ask a programmer to help you out. I'll check it again in a few months.

sch. d. Oct 10, 2014     

This app made my day.

roo. Jul 22, 2013     

Excellent functions..recommend to all

Eri. B. Jun 28, 2013     

I can't get it to do anything either. Keeps returning to default IP. No idea what 'offset' is for.

A. G. u. Sep 27, 2012     

Does what I need it to do.

A. G. u. May 29, 2012     

Hard to really say what I think of this app considering I couldn't get it to do anything.. Whenever I tried to enter settings into it I couldn't get it to do anything other than error out.

A. G. u. Sep 26, 2012     

I think this helped me a lot with out it I would have never had a chance to find a problem with customer PLC. The TX and RX counters helped a lot. Nexus One 2.3.6

A. G. u. Sep 28, 2017     

Not working with android 7.x