We are currently communicating between a Tektelic Industrial Sensor and an RTU via serial RS-232, and able to poll Modbus data through the Things Network console. Modbus polling was enabled, and a Modbus command (e.g., 01 03 00 6B 00 03 74 17 - to read holding registers) is entered into the Downlink Payload field, port 20.
The sensor returns the correct data for any type of Modbus command, but the question is, is it possible to send more than one “type” of Modbus command in a single Downlink Payload through the console? The Modbus types being, Coil Status (FC01), Input Status (FC02), Holding Register (FC03), and Input Registers (FC04). It seems limiting that the console can only repeat a single Modbus command and not be able to cycle through other commands.
Am I missing something here or doing something wrong?