Features

Features

Modbus-tk is a pure python library written with as few dependencies as possible, with the only dependancy being PySerial if using ModbusRTU.

Supported Types:

• Modbus RTU (Master and Slave)
• Modbus TCP (Master and Slave)
• Modbus RTU over TCP (Master and Slave)
• Modbus ACSII ??

Supported Function Codes

• 01 - Read Coils

• 02 - Read Discrete Inputs

• 03 - Read Holding Registers

• 04 - Read Input Registers

• 05 - Write Single Coil

• 06 - Write Single Register

• 07 - Read Exception Status

• 08 - Diagnostic

• 15 - Write Multiple Coils

• 16 - Write Multiple Registers

• 17 - Report Slave ID

• 20 - Read File Record

• 22 - Mask Write Register

• 23 - Read Write Multiple Registers

• 43 - Device Info

Planned Function Codes

N/A