Not recently updated — last update was on 2021-07-05.
This app may no longer be actively maintained.
About PyTool Modbus TCP
PyTool Modbus TCP is a tools app developed by Quan Lin.
Download Statistics
PyTool Modbus TCP has been downloaded 37 times. In the last 30 days, the app was downloaded 0 times.
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The app has no ratings yet.
App Information
PyTool Modbus TCP costs $1.49 to download. The APK download size is 15.46 MB. The latest version available is 0.4. The last update was on July 5, 2021.
Technical Requirements
The app has a content rating of Everyone. The app has been available on Google Play July 2019.
Description
PyTool Modbus TCP is a great tool for Modbus TCP developing, debugging and monitoring. It features Python script capability that gives you the greatest flexibility.
Why script capability is desirable for Modbus TCP tool? Electrical engineers find it handy to use a hand held device like Android phone or tablet to debug or monitor Modbus TCP communication in the field, factory or lab. But nearly every Modbus TCP communication system got its own data format. Searching in a sea of hex data like "02a5b4ca....ff000803" and trying to figure out what is happening is not pleasant at all. That is where PyTool Modbus TCP comes to help. With the ability to run custom Python script, PyTool Modbus TCP can read and parse any received data, display it in the way you want, and even act accordingly when it is needed.
There are script examples for quick start. Just copy and paste one of them to try them out.
There is also a handy Modbus TCP control interface for general use.
Script General Guide =================
* The Python version used in this app is 3.8.
* This app is not designed as script editor although script can be edited in the script field. The best way is to use your favorite script editor and then copy and paste the script.
* Always use 4 spaces for indentation to avoid weird errors.
* Most of the packages in standard Python library are available to import.
* If while loop is needed, always use `app.running_script` as condition in order to stop the script properly.
* Use `app.version` to get the app version string.
* Use `app.get_output()` to get the script output field as string.
* Use `app.set_output(object)` to display `object` in the script output field as string.
* Use `app.print_text(object)` as a shortcut for `app.set_output(app.get_output() + str(object))` to append text to the script output field.
* Use `app.clear_text()` as a shortcut for `app.set_output("")` to clear the script output field.
* Use `app.fc01_read_coils(mbid, addr, num)` to send function code 01 request. mbid (int): Modbus ID addr (int): Data Address num (int): Number of Data return (list of int): Requested Data List
* Use `app.fc02_read_discrete_inputs(mbid, addr, num)` to send function code 02 request. mbid (int): Modbus ID addr (int): Data Address num (int): Number of Data return (list of int): Requested Data List
* Use `app.fc03_read_holding_registers(mbid, addr, num)` to send function code 03 request. mbid (int): Modbus ID addr (int): Data Address num (int): Number of Data return (list of int): Requested Data List
* Use `app.fc04_read_input_registers(mbid, addr, num)` to send function code 04 request. mbid (int): Modbus ID addr (int): Data Address num (int): Number of Data return (list of int): Requested Data List
* Use `app.fc05_write_single_coil(mbid, addr, val)` to send function code 05 request. mbid (int): Modbus ID addr (int): Data Address val (int): Data Value return (int): Number of Data (always 1)
* Use `app.fc06_write_single_register(mbid, addr, val)` to send function code 06 request. mbid (int): Modbus ID addr (int): Data Address val (int): Data Value return (int): Number of Data (always 1)
* Use `app.fc15_write_multiple_coils(mbid, addr, vals)` to send function code 15 request. mbid (int): Modbus ID addr (int): Data Address vals (list of int): Data Value List return (int): Number of Data
* Use `app.fc16_write_multiple_registers(mbid, addr, vals)` to send function code 16 request. mbid (int): Modbus ID addr (int): Data Address vals (list of int): Data Value List return (int): Number of Data
* Use `app.msg_out` and `app.msg_in` to check request and response messages.
* Use `app.log_file(text)` to save a log file in storage. The log file is located here [Storage Directory]/PyToolModbusTCP/log_[UTC Timestamp].txt. text (str): Text Content return (str): Full File Path
Recent changes: Version 0.4 Python version for the script is 3.8. Now the script runs in Python global environment. Existing scripts should still work as before. `app.version` is added for checking app version.
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