Modbus ASCII 1.0 documentation

Modbus ASCII 1.0

Modbus over serial, ASCII transmission mode. Every logical byte is sent as 2 ASCII hex characters, framed between ':' and CRLF.

Servers

serial://tty/115200serialserial_link
Physical UART Transport (115200 bps, 7N1.0)

object

Operations

PUB omniuart/cmd/ReadHoldingRegistersRequest
Send command ReadHoldingRegistersRequest (ID: 0x03)
Dispatch ReadHoldingRegistersRequest frame to microcontroller over serial line

Operation IDpublish
Available only on servers:
- serial_link
Accepts the following message:
ReadHoldingRegistersRequest Command
object
Command payload for ReadHoldingRegistersRequest

Examples
{ "command_id": 3, "slaveAddress": 0, "startAddress": 0, "quantity": 0 }

This example has been generated automatically.

Schemas

object
Command payload for ReadHoldingRegistersRequest