Made the code more robust and universal.

software/test_software/modbus_control.py

@@ -1,6 +1,6 @@
 """"
 ModBus control routines
-Copyright (C) 2023 M.T. Konstapel
+Copyright (C) 2023-2025 M.T. Konstapel
 
 This program is free software: you can redistribute it and/or modify
 it under the terms of the GNU General Public License as published by
@@ -49,6 +49,42 @@ class ModBusController(minimalmodbus.Instrument):
 
         return device_id
 
+    def get_type(self):
+        device_type = self.read_register(4, 0, 4, False)
+
+        return device_type
+
+    # Get the 60 character long description string from ModBus device
+    def get_type_string(self):
+        register_offset = 6                     # ModBus register for text string starts at 6
+        device_type_register = [None]*30        # ModBus register for text string is 30 integers long
+        device_type_string = ""                 # Store the decoded string here
+
+        for index, entry in enumerate(device_type_register):
+            # Read Type string registers
+            device_type_register[index] = self.read_register(index + register_offset, 0, 4, False)
+            # Convert to ASCII string
+            device_type_string += chr((device_type_register[index] & 0xFF00) >> 8)
+            device_type_string += chr(device_type_register[index] & 0xFF)
+
+        return device_type_string.strip()
+
+    def get_number_of_input_registers(self):
+        device_number_of_input_registers = self.read_register(36, 0, 4, False)
+
+        return device_number_of_input_registers
+
+    def read_all_input_registers(self):
+
+        number_of_input_registers = self.get_number_of_input_registers()
+        offset = 40
+        input_register = [None]*number_of_input_registers
+
+        for index in range(number_of_input_registers):
+            input_register[index] = self.read_register(index + offset, 0, 4, False)
+
+        return input_register
+
     def enable_heater(self):
         self.write_bit(0, 1, 5)