Ethernet communication between a CommandHMI and Siemens LOGO! series PLCs

LOGO configuration

Add an Ethernet Modbus server connection

add thernet server modbus connection with lgoo siemens plc

Add its IP address, here

And input network and output network

Input Network

Output Network

You have here all Modbus register of the LOGO!

File > Properties – Modbus address space

In this tab, you can view the mapping relationship between Modbus address and LOGO! resource. See page 59 of the LOGO Comfort Online-help

HMI-Tool configuration

See also How to configure the Ethernet IP address of the CommandHMIs?


Operational register and address range


Via S7 protocol

In HMI-Tool

Start button:

Stop button:

Bit lamp:

In Siemens software